MassHealth Provider Phone Numbers 2025: Customer Service, Enrollment & Claims Contact Info.

For every MassHealth provider, navigating the complexities of Massachusetts’ Medicaid program requires precise and up-to-date contact information. This comprehensive guide serves as your definitive resource for all MassHealth-related inquiries in 2025, from general customer service to specific claims processing and managed care organization (MCO) contacts. As an RCM expert, I understand that having the right phone number at your fingertips can significantly reduce administrative burden, expedite claims, and ensure seamless patient care. This guide is meticulously crafted to empower your billing team with the critical information needed to efficiently manage your MassHealth patient accounts.

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Quick Reference Guide

This table provides a rapid lookup for the most frequently needed MassHealth provider phone numbers and essential contact details. Keep this handy for immediate access to critical departments.

Service Area	Contact Number	Description / Notes
MassHealth Customer Service (General Provider Inquiries)	1-800-841-2900	For general questions, policy clarification, and eligibility verification. Available Monday-Friday, 8:00 AM – 5:00 PM EST. This is your primary MassHealth phone number for most non-claim specific issues.
MassHealth Provider Services (Claims & Billing)	1-800-841-2900 (select provider option)	Specifically for questions regarding submitted claims, payment status, and billing guidelines. This is the masshealth provider phone number for claims.
MassHealth Enrollment Center (MEC)	1-800-841-2900 (select member option, then ask for MEC)	For member enrollment status, changes in coverage, or assistance with applications.
MassHealth Prior Authorization Unit	1-800-841-2900 (select appropriate option)	For inquiries related to prior authorization requests and approvals.
MassHealth Dental Customer Service	1-800-207-5019 (DentaQuest)	For all dental-specific inquiries, claims, and eligibility. DentaQuest manages MassHealth dental benefits.
MassHealth TTY (for hearing impaired)	1-800-497-4648	Dedicated line for individuals with hearing impairments.
MassHealth Provider Online Service Center (POSC) Help Desk	1-800-841-2900 (select POSC option)	Assistance with the MassHealth Provider Online Service Center portal, including login issues, claim submission, and eligibility checks.
MassHealth Fax Number (General)	1-617-988-8974	For general correspondence and documentation. Always verify specific fax numbers for departments or MCOs.
MassHealth Billing Address (Paper Claims)	MassHealth P.O. Box 9162 Canton, MA 02021	Use this address for submitting paper claims. Electronic claims submission is highly recommended.

Detailed Breakdown: Navigating MassHealth Provider Contacts

Understanding the various channels for communication with MassHealth is paramount for any healthcare provider operating in Massachusetts. This section delves deeper into the specific contact points, ensuring you can quickly reach the right department, whether you’re dealing with a complex claim, verifying eligibility, or seeking policy clarification. We’ll cover general MassHealth provider customer service, specific claims inquiries, and crucial contacts for the major MassHealth MCO/ACO plans.

General MassHealth Provider Customer Service & Eligibility

The primary MassHealth phone number for most general inquiries is 1-800-841-2900. This number serves as a central hub, allowing you to navigate to various departments. When you call, be prepared to select options for providers, members, or specific services. For general questions about MassHealth policies, program updates, or member eligibility verification, this is your first point of contact. The MassHealth provider customer service number is staffed by knowledgeable representatives who can guide you through the intricacies of the program.

• Eligibility Verification: Before rendering services, always verify a patient’s MassHealth eligibility. This can be done via the MassHealth Provider Online Service Center (POSC) or by calling the general customer service line. Remember that eligibility can change frequently, so real-time verification is crucial.
• Policy Clarifications: If you have questions about specific service codes, coverage limitations, or new MassHealth guidelines, the customer service team can provide official interpretations.
• Provider Enrollment: For new providers seeking to enroll with MassHealth or existing providers needing to update their information, the enrollment unit accessible through the main line can assist. For detailed steps, refer to our comprehensive guide on MassHealth provider enrollment.

MassHealth Provider Phone Number for Claims & Billing

When it comes to getting paid, the MassHealth provider phone number for claims is your most critical resource. While the general MassHealth customer service number (1-800-841-2900) is the entry point, you’ll need to select the appropriate option for provider claims and billing.

• Claim Status Inquiries: Use this line to check the status of submitted claims, inquire about payment dates, or understand why a claim might be pending.
• Remittance Advice (RA) Questions: If you have discrepancies on your Remittance Advice or need clarification on specific payment adjustments, the claims department can help.
• Billing Guidelines: For questions about specific CPT/HCPCS codes, modifiers, or billing rules for particular services, the claims specialists are the experts. It’s vital to stay updated on MassHealth billing guidelines to minimize denials.
• MassHealth Billing Address: While electronic claims are preferred, if you must submit paper claims, ensure they are sent to the correct MassHealth billing address:

MassHealth
P.O. Box 9162
Canton, MA 02021

Always double-check the specific mailing address for appeals or other correspondence, as they may differ.

Medicaid Massachusetts Provider Phone Number for Managed Care Organizations (MCOs) & Accountable Care Organizations (ACOs)

Many MassHealth members are enrolled in Managed Care Organizations (MCOs) or Accountable Care Organizations (ACOs). These plans manage the member’s care and claims, meaning you’ll often need to contact the specific plan directly for eligibility, prior authorizations, and claims. This is where the `medicaid massachusetts provider phone number` becomes more nuanced, as each plan has its own dedicated lines.

Tufts Health Together (Tufts Health Public Plans)

• Provider Services: 1-888-257-1985
• Prior Authorization: 1-888-257-1985 (follow prompts)
• Website: [Tufts Health Together Provider Portal](https://www.tuftshealthplan.com/providers/masshealth-providers)
• Notes: Tufts Health Together is a prominent MassHealth ACO plan. Always verify eligibility and prior authorization requirements directly with them.

Fallon Health Wei (Wellforce Care Plan)

• Provider Services: 1-866-679-6985
• Prior Authorization: 1-866-679-6985 (follow prompts)
• Website: [Fallon Health Wei Provider Resources](https://www.fallonhealth.org/providers/masshealth-aco-mco)
• Notes: Fallon Health offers various MassHealth plans, including Fallon Health Wei. Ensure you specify the plan when calling.

BMC HealthNet Plan (Boston Medical Center HealthNet Plan)

• Provider Services: 1-888-566-0008
• Prior Authorization: 1-888-566-0008 (follow prompts)
• Website: [BMC HealthNet Plan Provider Portal](https://www.bmchp.org/providers)
• Notes: BMC HealthNet Plan is a significant player in the MassHealth landscape. Their provider portal is an excellent resource for eligibility and claims.

Health New England (HNE Be Healthy)

• Provider Services: 1-800-310-7587
• Prior Authorization: 1-800-310-7587 (follow prompts)
• Website: [Health New England Provider Information](https://www.healthnewengland.org/providers/masshealth)
• Notes: HNE Be Healthy is Health New England’s MassHealth product.

MGB Health Plan (Mass General Brigham Health Plan, formerly AllWays Health Partners)

• Provider Services: 1-800-462-5449
• Prior Authorization: 1-800-462-5449 (follow prompts)
• Website: [MGB Health Plan Provider Portal](https://www.massgeneralbrighamhp.org/providers)
• Notes: Formerly AllWays Health Partners, MGB Health Plan is part of the Mass General Brigham system.

Commonwealth Care Alliance (CCA)

• Provider Services: 1-866-420-9721
• Prior Authorization: 1-866-420-9721 (follow prompts)
• Website: [Commonwealth Care Alliance Provider Resources](https://www.commonwealthcarealliance.org/providers)
• Notes: CCA specializes in complex care for dually eligible (MassHealth and Medicare) members.

WellSense Health Plan (formerly Neighborhood Health Plan)

• Provider Services: 1-888-566-0010
• Prior Authorization: 1-888-566-0010 (follow prompts)
• Website: [WellSense Health Plan Provider Portal](https://www.wellsense.org/providers)
• Notes: WellSense Health Plan is a key MassHealth partner, offering comprehensive services.

Important Note on MCO/ACO Contacts: Always verify the specific plan a MassHealth member is enrolled in. The member’s MassHealth card or eligibility verification through the POSC will indicate their MCO/ACO. Contacting the correct plan directly will save significant time and prevent unnecessary claim denials.

MassHealth Dental Customer Service (DentaQuest)

Dental services for MassHealth members are managed by DentaQuest. This means that for all dental-specific inquiries, claims, and prior authorizations, you will need to contact DentaQuest directly, not the general MassHealth line.

• DentaQuest Provider Services: 1-800-207-5019
• Website: [DentaQuest MassHealth Provider Portal](https://www.dentaquest.com/en/masshealth-providers)
• Services Covered: Eligibility for dental benefits, claims submission, payment inquiries, prior authorization for complex dental procedures, and policy questions related to dental care.
• Key Tip: Ensure your dental practice is properly credentialed with DentaQuest to avoid billing issues.

MassHealth Provider Online Service Center (POSC) Help Desk

The MassHealth Provider Online Service Center (POSC) is an invaluable tool for providers, offering 24/7 access to eligibility verification, claim submission, claim status checks, and remittance advice. If you encounter technical issues with the POSC, such as login problems, navigation difficulties, or error messages, the POSC Help Desk is your resource.

• POSC Help Desk Phone Number: 1-800-841-2900 (select the option for POSC assistance)
• Common Issues: Password resets, account lockouts, issues with electronic claim submission, and understanding POSC reports.
• Recommendation: Familiarize your billing staff with the POSC. It can significantly reduce the need for phone calls and speed up many administrative tasks.

Enhancing Search Visibility with Structured Schema Markup

To ensure this vital information reaches as many MassHealth providers as possible, implementing structured schema markup is crucial for enhanced search visibility. While not a direct contact number, it’s a critical component of an effective online resource.

• FAQPage Schema: For sections like “Common Denial Codes” or “Quick Reference Guide,” an FAQPage schema can highlight questions and answers directly in search results, providing immediate value.
• Organization Schema: This schema helps search engines understand the entity providing the information (e.g., your organization) and its official contact details, including the `masshealth phone number` for general inquiries.
• ContactPoint Schema: Specifically for contact information, ContactPoint schema can explicitly mark up phone numbers for different departments (e.g., `masshealth provider phone number for claims`, `masshealth provider customer service number`), making it easier for search engines to present this data directly to users.

By integrating these schema types, search engines can better interpret and display the comprehensive contact information provided here, making it more accessible to providers searching for `ma medicaid phone number` or `provider masshealth phone` details.

Real-World Billing Scenarios & Patient Status Changes

Effective MassHealth billing goes beyond just knowing the numbers; it requires understanding how to apply that knowledge in dynamic patient scenarios. Here are common situations and how to navigate them.

Scenario 1: New Patient Enrollment & Eligibility Verification

• Situation: A new patient presents with a MassHealth card, but you’ve never seen them before.
• Action:

1. Verify Eligibility: Immediately use the MassHealth Provider Online Service Center (POSC) to confirm active coverage and the specific MassHealth plan (MCO/ACO) they are enrolled in.
2. Identify MCO/ACO: Note the MCO/ACO. This dictates where you’ll submit claims and seek prior authorizations.
3. Prior Authorization (if needed): If the service requires prior authorization, contact the specific MCO/ACO using their dedicated provider services number (e.g., Tufts Health Together Provider Services: 1-888-257-1985) before rendering the service.
4. Billing: Submit claims to the correct MCO/ACO or to MassHealth directly if the patient is in a fee-for-service plan.

Scenario 2: Change in Patient’s MassHealth Plan

• Situation: A long-term MassHealth patient informs you they’ve switched from one MCO (e.g., Fallon Health Wei) to another (e.g., WellSense Health Plan).
• Action:

1. Re-verify Eligibility: Confirm the new plan and effective date via POSC.
2. Update Patient Records: Ensure your billing system reflects the new MCO/ACO.
3. Prior Authorizations: Any existing prior authorizations with the old MCO are likely invalid. New authorizations must be obtained from the new MCO for ongoing or future services. Contact the new MCO’s prior authorization line (e.g., WellSense Health Plan Prior Authorization: 1-888-566-0010).
4. Claims Submission: Submit claims for services rendered after the effective date of the new plan to the new MCO. Claims for services before that date go to the old MCO.

Scenario 3: Emergency Services for an Unidentified MassHealth Patient

• Situation: A patient arrives in the emergency department requiring immediate care, and their MassHealth status is unknown or unverified.
• Action:

1. Provide Care: Prioritize patient care.
2. Attempt Verification: During or after stabilization, attempt to verify MassHealth eligibility using available patient identifiers (name, date of birth, Social Security Number) through the POSC or by calling the general MassHealth customer service number (1-800-841-2900).
3. Retroactive Eligibility: If the patient is later determined to be MassHealth eligible, claims can often be submitted retroactively. Be prepared to provide documentation of medical necessity for emergency services.
4. Follow-up: If an MCO/ACO is identified, follow their specific billing guidelines for emergency services.

Scenario 4: Behavioral Health Services

• Situation: A MassHealth member requires behavioral health services.
• Action:

1. Verify Plan: Confirm the patient’s MassHealth plan (MCO/ACO or fee-for-service).
2. Behavioral Health Carve-Outs: Be aware that some MassHealth plans may carve out behavioral health benefits to a separate entity (e.g., MBHP – Massachusetts Behavioral Health Partnership). Verify this through the patient’s MCO or the general MassHealth line.
3. Contact Specific Behavioral Health Entity: If carved out, contact the specific behavioral health administrator for eligibility, prior authorization, and claims submission.
4. Documentation: Ensure all behavioral health services are thoroughly documented to support medical necessity.

Common Denial Codes & Step-by-Step Appeal Instructions

Denials are an unfortunate but common part of medical billing. Understanding the reasons for denial and having a clear appeal process is crucial for revenue cycle management. MassHealth, like other payers, uses standard denial codes.

Understanding Common MassHealth Denial Codes (CARC/RARC)

MassHealth utilizes standard Claim Adjustment Reason Codes (CARC) and Remittance Advice Remark Codes (RARC) to explain claim adjustments and denials. Familiarity with these codes is your first step in effective appeals.

• CO-16 (Claim Adjustment Reason Code): “Claim/service lacks information which is needed for adjudication. At least one Remark Code must be provided (may be external code).”

Meaning: This is a very common denial, indicating missing or incomplete information. It’s often accompanied by a RARC that specifies what* information is missing.

• Common RARC companions:
• M86: “Missing/incomplete/invalid place of service.”
• M80: “Missing/incomplete/invalid patient identifier.”
• N11: “Missing/incomplete/invalid provider identifier.”
• N265: “Missing/incomplete/invalid prior authorization number.”
• Action: Review the RARC carefully. Correct the missing information (e.g., add a valid NPI, correct the place of service, obtain/add the PA number) and resubmit the claim.
• CO-97 (Claim Adjustment Reason Code): “The benefit for this service is included in the payment/allowance for another service/procedure that has already been adjudicated.”
• Meaning: This indicates bundling issues. MassHealth believes the service billed is part of another, already paid service.
• Action: Review CPT coding guidelines and MassHealth’s bundling rules. If you believe the service was distinct and separately billable, you may need to appeal with supporting documentation (e.g., medical records justifying separate procedures, use of appropriate modifiers like -59 or -25).
• CO-18 (Claim Adjustment Reason Code): “Duplicate claim/service.”
• Meaning: MassHealth has already processed a claim for this service for this patient on this date.
• Action: Verify if the original claim was paid. If it was, no action is needed. If it was denied for another reason, address that denial. If you believe it’s not a duplicate, ensure there isn’t a slight variation in submission that makes it appear so.
• CO-29 (Claim Adjustment Reason Code): “The time limit for filing has expired.”
• Meaning: The claim was submitted past MassHealth’s timely filing limit (typically 90 days from the date of service, but always verify current rules).
• Action: This is a difficult denial to appeal unless there’s a specific reason for late filing (e.g., delayed eligibility determination, administrative error by MassHealth). Provide clear documentation of the reason for delay.

Step-by-Step MassHealth Appeal Instructions

When a claim is denied, don’t give up. A well-structured appeal can often overturn initial denials.

1. Identify the Denial Reason:

• Carefully review the Remittance Advice (RA) or Electronic Remittance Advice (ERA) for the CARC and RARC codes.

Understand precisely why* the claim was denied. This is the most critical step.

2. Gather Supporting Documentation:

• Medical Records: Pull all relevant patient charts, physician’s notes, operative reports, lab results, and imaging reports that support the medical necessity and services rendered.
• Prior Authorization: If applicable, include a copy of the approved prior authorization.
• Eligibility Verification: Provide proof of eligibility on the date of service.
• Billing Guidelines: Reference specific MassHealth billing manuals or policy updates that support your claim.
• Original Claim: Include a copy of the original claim form.

3. Draft a Clear and Concise Appeal Letter:

• Provider Information: Your practice name, NPI, address, and contact information.
• Patient Information: Patient name, MassHealth ID, date of birth.
• Claim Information: Original claim number, date of service, denied service lines, and the denial reason (CARC/RARC).
• Reason for Appeal: Clearly state why you believe the denial is incorrect, referencing the supporting documentation. Be specific and factual.
• Requested Action: Explicitly state what you want MassHealth to do (e.g., “Please reprocess this claim for payment”).

4. Submit the Appeal:

• MassHealth Fee-for-Service Appeals:
• Mail your appeal to:

MassHealth
Appeals Unit
P.O. Box 9162
Canton, MA 02021

• Always send appeals via certified mail with a return receipt requested to have proof of submission.
• MCO/ACO Appeals: Each MCO/ACO has its own appeal process and address. Refer to their provider manual or website (e.g., [MGB Health Plan Provider Portal](https://www.massgeneralbrighamhp.org/providers)) for specific instructions and mailing addresses. You may also call their provider services line (e.g., `provider masshealth phone` for MGB Health Plan: 1-800-462-5449) to confirm the appeal process.

5. Track Your Appeal:

• Keep a detailed log of all appeals, including submission date, tracking numbers, and expected response times.
• Follow up if you don’t receive a response within the payer’s stated timeframe (typically 30-60 days).

6. Second Level Appeals (if necessary):

• If your initial appeal is denied, review the new denial reason. You may have the option for a second-level appeal or an external review, depending on the specific MassHealth plan and denial type.

By meticulously following these steps and utilizing the correct `masshealth provider phone number` for each stage of the process, your practice can significantly improve its success rate in overturning denials and ensuring proper reimbursement for the vital services you provide to MassHealth members. Staying informed and proactive is the hallmark of an efficient revenue cycle.

FAQ: Common Questions Answered

How do I contact MassHealth for general provider inquiries?

For general provider inquiries, policy clarifications, or eligibility verification, you should contact MassHealth Customer Service at 1-800-841-2900. This line is available Monday through Friday, from 8:00 AM to 5:00 PM EST, and serves as your primary point of contact for most non-claim specific administrative questions.

What is the phone number for MassHealth claims status and inquiries?

To inquire about submitted claims, check payment status, or clarify billing guidelines, you’ll use the same primary MassHealth number: 1-800-841-2900. However, it’s crucial to listen to the prompts and select the specific “provider option” to be directed to the MassHealth Provider Services department, which specializes in claims and billing issues.

Where can I find MassHealth enrollment contact information for providers?

For questions related to member enrollment status, changes in coverage, or assistance with applications, you’ll need to reach the MassHealth Enrollment Center (MEC). You can access them by calling 1-800-841-2900, selecting the “member option” when prompted, and then specifically asking the representative to connect you with the MEC.

Does MassHealth have a separate phone number for MCO/ACO plans?

While the provided quick reference guide focuses on general MassHealth contacts, Managed Care Organizations (MCOs) and Accountable Care Organizations (ACOs) typically maintain their own dedicated provider service lines for specific plan-related inquiries, prior authorizations, and claims processing for their enrolled members. The full MassHealth guide, beyond this truncated section, would likely detail these specific MCO/ACO contact numbers. It’s always best practice to consult the member’s specific MCO/ACO provider manual or their dedicated provider portal for the most accurate and direct contact information.

External Resources & Authority Links

• For more detailed insights, refer to the official CMS Medicare guidelines.
• For more detailed insights, refer to the CMS guidelines.