DR. ALLISON S. BRYANT MANTHA M.D., M.P.H.
NPI 1386684926
Obstetrics & Gynecology in Boston, MA
About Dr. Allison S. Bryant Mantha M.d., M.p.h. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALLISON S. BRYANT MANTHA M.D., M.P.H. (NPI 1386684926) is an individual obstetrics & gynecology provider in Boston, Massachusetts, licensed in California (A91489) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and is a graduate of Harvard Medical School (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Dr. Allison S. Bryant Mantha M.d., M.p.h. 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
3Medicare enrollment records show Allison Bryant Mantha reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts and New Hampshire enrollments
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Nantucket, MA 02554
- Reassigned Medicare billing, Massachusetts enrollment
- 206 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Allison Bryant Mantha's NPI number?
The NPI number for Allison Bryant Mantha is 1386684926. It was assigned to this individual provider in the NPPES registry on June 8, 2006.
Where is Allison Bryant Mantha located?
Allison Bryant Mantha practices at 55 Fruit St Founders 4, Boston, MA 02114. The listed phone number is (415) 476-3910.
What is Allison Bryant Mantha's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Allison Bryant Mantha enrolled in Medicare?
Yes. Allison Bryant Mantha 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 Allison Bryant Mantha's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Bryant Mantha reassigns Medicare benefits to 3 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and Nantucket Cottage Hospital (Nantucket, MA). 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 Allison Bryant Mantha's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Allison Bryant Mantha accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Allison Bryant Mantha 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 Allison Bryant Mantha affiliated with any hospitals?
According to CMS data, Allison Bryant Mantha is affiliated with Massachusetts General Hospital.
When was this NPI record last updated?
The NPPES record for Allison Bryant Mantha was last updated on May 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.
# Dr. Allison S. Bryant Mantha, M.D., M.P.H. · NPI 1386684926
Obstetrics & Gynecology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 8, 2006.
## Identity
- **NPI:** 1386684926 (Entity type: Individual)
- **Enumerated:** June 8, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** A91489 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, FOUNDERS 4, Boston, MA 02114-2621
- **Phone:** (415) 476-3910
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Nantucket Cottage Hospital (NPI 1447214622, Nantucket, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 1998
## Record status
- **NPPES last updated:** May 3, 2010
- **Other identifiers:** Medicaid 00A914890 (CA); Medicare UPIN H60897 (CA); Medicare PIN 00A914890 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1386684926) · Data from the CMS NPPES public registry.