GABRIELLE M BAKER MD
NPI 1932369444
Pathology - Anatomic Pathology & Clinical Pathology in Boston, MA
About Gabrielle M Baker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GABRIELLE M BAKER MD (NPI 1932369444) is an individual anatomic pathology & clinical pathology provider in Boston, Massachusetts, licensed in Massachusetts (L-237421) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gabrielle M Baker Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Gabrielle Baker reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 74 clinicians in this Medicare group
Milton, MA 02186
- Reassigned Medicare billing, Massachusetts enrollment
- 14 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.
Physician 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
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 Gabrielle Baker's NPI number?
The NPI number for Gabrielle Baker is 1932369444. It was assigned to this individual provider in the NPPES registry on June 10, 2008.
Where is Gabrielle Baker located?
Gabrielle Baker practices at Massachusetts General Hospital 55 Fruit Street, Boston, MA 02114. The listed phone number is (617) 726-2967.
What is Gabrielle Baker's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Gabrielle Baker enrolled in Medicare?
Yes. Gabrielle Baker is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gabrielle Baker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gabrielle Baker reassigns Medicare benefits to 3 organizations: Beth Israel Deaconess Medical Center, Inc. (Boston, MA), Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA) and Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Milton, 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 Gabrielle Baker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gabrielle Baker was last updated on June 10, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Gabrielle M Baker, MD · NPI 1932369444
Anatomic Pathology & Clinical Pathology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since June 10, 2008.
## Identity
- **NPI:** 1932369444 (Entity type: Individual)
- **Enumerated:** June 10, 2008
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** L-237421 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** MASSACHUSETTS GENERAL HOSPITAL, 55 FRUIT STREET, Boston, MA 02114
- **Phone:** (617) 726-2967
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Beth Israel Deaconess Medical Center, Inc. (NPI 1548202641, Boston, MA); Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (NPI 1346281938, Boston, MA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1336781301, Milton, MA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 10, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1932369444) · Data from the CMS NPPES public registry.