DR. HANNAH JACKSON PARKER M.D.
NPI 1124078167
Obstetrics & Gynecology in Brookline, MA
About Dr. Hannah Jackson Parker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HANNAH JACKSON PARKER M.D. (NPI 1124078167) is an individual obstetrics & gynecology provider in Brookline, Massachusetts, licensed in Massachusetts (213655) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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. Hannah Jackson Parker M.d. 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 Reassignment
Medicare enrollment records show Hannah Parker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brookline, MA 02445
- Reassigned Medicare billing, Massachusetts enrollment
- 10 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02445 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.
BROOKLINE, MA 02445
BROOKLINE, MA 02445
BROOKLINE, MA 02445
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 Parker's NPI number?
The NPI number for Hannah Parker is 1124078167. It was assigned to this individual provider in the NPPES registry on May 11, 2006.
Where is Hannah Parker located?
Hannah Parker practices at 1 Brookline Pl Suite 305, Brookline, MA 02445. The listed phone number is (617) 732-1510.
What is Hannah Parker's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Hannah Parker enrolled in Medicare?
Yes. Hannah Parker 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 organization bills Medicare for Hannah Parker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hannah Parker reassigns Medicare benefits to Commonwealth Ob-Gyn, PC (Brookline, MA). The 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 Parker'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 Hannah Parker was last updated on August 12, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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. Hannah Jackson Parker, M.D. · NPI 1124078167
Obstetrics & Gynecology physician in Brookline, Massachusetts. Individual provider, active in the CMS NPPES registry since May 11, 2006.
## Identity
- **NPI:** 1124078167 (Entity type: Individual)
- **Enumerated:** May 11, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 213655 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BROOKLINE PL, SUITE 305, Brookline, MA 02445-7224
- **Phone:** (617) 732-1510 · **Fax:** (617) 732-0986
## 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:** Commonwealth Ob-Gyn, PC (NPI 1912082694, Brookline, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 1998
## Record status
- **NPPES last updated:** August 12, 2011
- **Other identifiers:** Medicare UPIN H74378
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Source: [NPI Profile](https://npiprofile.com/npi/1124078167) · Data from the CMS NPPES public registry.