HANNAH-MARIAH WHITTLE GALLANT NP
NPI 1083802391
Nurse Practitioner - Psychiatric/Mental Health in Boston, MA
About Hannah-mariah Whittle Gallant Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HANNAH-MARIAH WHITTLE GALLANT NP (NPI 1083802391) is an individual psychiatric/mental health provider in Boston, Massachusetts, licensed in Massachusetts (RN267611) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS, is affiliated with St Mary's Regional Medical Center, and maintains a secondary practice location in Kennebunkport.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Hannah-mariah Whittle Gallant Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Hannah-mariah Gallant reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dorchester, MA 02122
- Reassigned Medicare billing, Massachusetts enrollment
- 41 clinicians in this Medicare group
North Quincy, MA 02171
- Reassigned Medicare billing, Massachusetts enrollment
- 63 clinicians in this Medicare group
New Bedford, MA 02740
- Reassigned Medicare billing, Massachusetts enrollment
- 99 clinicians in this Medicare group
Lewiston, ME 04240
- Reassigned Medicare billing, Maine enrollment
- 80 clinicians in this Medicare group
Lewiston, ME 04240
- Reassigned Medicare billing, Maine enrollment
- Medicare enrollment name: St Marys Regional Medical Center
- 381 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Mary's Regional Medical Center
Acute Care Hospitals · Lewiston, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02118 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Hannah-mariah Gallant's NPI number?
The NPI number for Hannah-mariah Gallant is 1083802391. It was assigned to this individual provider in the NPPES registry on October 11, 2007.
Where is Hannah-mariah Gallant located?
Hannah-mariah Gallant practices at 1 Boston Medical Ctr Pl Boston, Boston, MA 02118. The listed phone number is (617) 414-5245.
What is Hannah-mariah Gallant's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Hannah-mariah Gallant enrolled in Medicare?
Yes. Hannah-mariah Gallant is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Hannah-mariah Gallant's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hannah-mariah Gallant reassigns Medicare benefits to 5 organizations: Boston Medical Center Corporation (Dorchester, MA), Manet Community Health Center, Inc. (North Quincy, MA), Child & Family Services, Inc. (New Bedford, MA), Community Clinical Services, Inc. (Lewiston, ME) and St. Mary's Regional Medical Center (Lewiston, ME). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Hannah-mariah Gallant's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hannah-mariah Gallant accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Hannah-mariah Gallant as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Hannah-mariah Gallant affiliated with any hospitals?
According to CMS data, Hannah-mariah Gallant is affiliated with St Mary's Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Hannah-mariah Gallant was last updated on February 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Hannah-Mariah Whittle Gallant, NP · NPI 1083802391
Psychiatric/Mental Health physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since October 11, 2007.
## Identity
- **NPI:** 1083802391 (Entity type: Individual)
- **Enumerated:** October 11, 2007
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** RN267611 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BOSTON MEDICAL CTR PL, BOSTON, Boston, MA 02118-2371
- **Phone:** (617) 414-5245 · **Fax:** (617) 638-6836
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Boston Medical Center Corporation (NPI 1780874677, Dorchester, MA); Manet Community Health Center, Inc. (NPI 1114027539, North Quincy, MA); Child & Family Services, Inc. (NPI 1205813540, New Bedford, MA); Community Clinical Services, Inc. (NPI 1164477568, Lewiston, ME); St. Mary's Regional Medical Center (NPI 1447226584, Lewiston, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2008
## Record status
- **NPPES last updated:** February 5, 2026
- **Other identifiers:** Medicaid 110086911A (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1083802391) · Data from the CMS NPPES public registry.