THOMAS DONALDSON MD
NPI 1841929189
Obstetrics & Gynecology in Philadelphia, PA
About Thomas Donaldson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS DONALDSON MD (NPI 1841929189) is an individual obstetrics & gynecology provider in Philadelphia, Pennsylvania, licensed in Maryland (D0107162) and active in the NPI registry since June 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in Baltimore, and is a graduate of Eastern Virginia Medical School (2022).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Thomas Donaldson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Thomas Donaldson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19140
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,991 clinicians in this Medicare group
Nottingham, MD 21236
- Reassigned Medicare billing, Maryland enrollment
- 952 clinicians in this Medicare group
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: Baltimore Medical System, Inc.
- 243 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 19140 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.
PHILADELPHIA, PA 19140
PHILADELPHIA, PA 19140
PHILADELPHIA, PA 19140
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 Thomas Donaldson's NPI number?
The NPI number for Thomas Donaldson is 1841929189. It was assigned to this individual provider in the NPPES registry on June 9, 2022.
Where is Thomas Donaldson located?
Thomas Donaldson practices at 3401 N Broad St, Philadelphia, PA 19140. The listed phone number is (800) 836-7536.
What is Thomas Donaldson's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Thomas Donaldson enrolled in Medicare?
Yes. Thomas Donaldson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Thomas Donaldson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Donaldson reassigns Medicare benefits to 3 organizations: Temple Faculty Practice Plan Inc (Philadelphia, PA), Johns Hopkins Community Physicians, Inc (Nottingham, MD) and Baltimore Medical Systems, Inc. (Baltimore, MD). 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 Thomas Donaldson'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 Thomas Donaldson was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Thomas Donaldson, MD · NPI 1841929189
Obstetrics & Gynecology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 9, 2022.
## Identity
- **NPI:** 1841929189 (Entity type: Individual)
- **Enumerated:** June 9, 2022
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** D0107162 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 3401 N BROAD ST, Philadelphia, PA 19140-5103
- **Phone:** (800) 836-7536
## 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): Temple Faculty Practice Plan Inc (NPI 1235611179, Philadelphia, PA); Johns Hopkins Community Physicians, Inc (NPI 1194546192, Nottingham, MD); Baltimore Medical Systems, Inc. (NPI 1164138152, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Eastern Virginia Medical School, class of 2022
## Record status
- **NPPES last updated:** July 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1841929189) · Data from the CMS NPPES public registry.