Credentialing by state / Massachusetts
Nurse Practitioner Credentialing in Massachusetts
Enrollments are billed 50% at the start and 50% at submission; everything else 100% at the start.
| NP practice environment | Full Practice (AANP) |
|---|---|
| Licensing authority | The Massachusetts board of nursing alone |
| Medicare contractor | National Government Services, jurisdiction JK |
| Medicaid | MassHealth, enrolled through the MassHealth Provider Online Service Center (POSC) |
| Medicaid managed care | 9 plans, 903,795 members (2024) |
| Blue Cross Blue Shield plan | Blue Cross Blue Shield of Massachusetts |
Massachusetts Is a Full Practice State
The American Association of Nurse Practitioners classifies Massachusetts as full practice: state law lets nurse practitioners evaluate patients, diagnose, order and interpret tests, and prescribe under the exclusive licensure authority of the state board of nursing. 28 of the 50 states and DC have that classification.
For credentialing, full practice means the application is about you alone. MassHealth and the commercial plans in Massachusetts generally do not ask for a collaborating physician, so the fields that hold up NP files in other states are simply absent. Medicare's rule for NP services (42 CFR 410.75) defers to state law on collaboration, and where state law is silent it expects the NP to document their scope of practice and how they work with physicians on issues outside it. Enrollment itself runs through PECOS and National Government Services on the CMS-855I like any other independent practitioner.
What still slows Massachusetts NPs down is the business side: an NP-owned entity needs its own Type 2 NPI, a group enrollment and a reassignment for each clinician, and some commercial plans review NP-owned practices more slowly than physician groups. If you are new to independent practice, confirm with the board whether any transition-to-practice hours apply to you before the applications go in, because payers will ask for the license status that results.
MassHealth Managed-Care Plans for NPs
After the state enrollment, each managed-care plan credentials you as its own application. The largest in Massachusetts by 2024 enrollment:
- WellSense Health Plan: 461,000 members, owned by Boston Medical Center Health Plan
- Mass General Brigham Health Plan: 132,115 members
- Tufts Health Together: 118,899 members, owned by Point32Health
See all 9 plans.
Neighboring States
Every state bordering Massachusetts is also full practice, so the agreement rules are similar across the line, though each state still needs its own license and payer enrollments.
- Connecticut NP credentialing (Full Practice)
- New Hampshire NP credentialing (Full Practice)
- New York NP credentialing (Full Practice)
- Rhode Island NP credentialing (Full Practice)
- Vermont NP credentialing (Full Practice)
The full NP checklist, the entity decision and where applications stall are in our nurse practitioner credentialing guide. For Medicare, Medicaid and commercial plans for every clinician type in the state, see credentialing in Massachusetts.
Questions Massachusetts NPs Ask
Do Massachusetts nurse practitioners need a collaborating physician to get credentialed?
No. AANP classifies Massachusetts as full practice, so payers generally do not require a collaborating physician on an NP application. Check with the board of nursing whether any transition-to-practice requirement applies to a newly licensed NP.
How does a Massachusetts NP join MassHealth?
Enroll with the Massachusetts Executive Office of Health and Human Services through the MassHealth Provider Online Service Center (POSC). Most MassHealth members are in managed care (903,795 enrolled across 9 plans in 2024), so after the state enrollment is active, each plan you want, such as WellSense Health Plan, Mass General Brigham Health Plan, Tufts Health Together, credentials you separately.
Can an NP licensed in Massachusetts see patients in a neighboring state?
Only with a license from that state, and each state's practice rules apply to the patients there. Connecticut is full practice; New Hampshire is full practice; New York is full practice; Rhode Island is full practice; Vermont is full practice. Payer enrollment is also per state, so seeing patients across the line means a separate Medicaid enrollment and separate commercial applications there.
What does PECS charge a Massachusetts NP?
CAQH (DataSpring) profile build $500; Medicare enrollment $500; MassHealth enrollment $500; each commercial application, including Blue Cross Blue Shield of Massachusetts, $200 per provider. Enrollment services bill 50% at engagement and 50% at submission.
Answers cover PECS services, prices and process. For legal, tax or clinical questions please consult a professional.
Sources: American Association of Nurse Practitioners, State Practice Environment (updated May 2026); KFF, Medicaid MCO Enrollment by Plan and Parent Firm, 2024. Practice classification is AANP's; confirm current rules with the Massachusetts board of nursing. Updated October 7, 2026.