ALEXANDER STUART WHITAKER M.D.
NPI 1689917361
Pediatrics in Baltimore, MD
About Alexander Stuart Whitaker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER STUART WHITAKER M.D. (NPI 1689917361) is an individual pediatrics provider in Baltimore, Maryland, licensed in Maryland (D81474) and active in the NPI registry since April 2013. He 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)
Alexander Stuart Whitaker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Alexander Whitaker reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21202
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: St Paul Place Specialists, Inc.
- 423 clinicians in this Medicare group
Baltimore, MD 21202
- Reassigned Medicare billing, Maryland enrollment
- 66 clinicians in this Medicare group
Baltimore, MD 21202
- Reassigned Medicare billing, Maryland enrollment
- 257 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 21201 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.
BALTIMORE, MD 21201
BALTIMORE, MD 21201
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 Alexander Whitaker's NPI number?
The NPI number for Alexander Whitaker is 1689917361. It was assigned to this individual provider in the NPPES registry on April 1, 2013.
Where is Alexander Whitaker located?
Alexander Whitaker practices at 827 Linden Ave 1st Floor, Baltimore, MD 21201. The listed phone number is (410) 225-8780.
What is Alexander Whitaker's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Alexander Whitaker enrolled in Medicare?
Yes. Alexander Whitaker is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alexander Whitaker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Whitaker reassigns Medicare benefits to 3 organizations: Saint Paul Place Specialists, Inc. (Baltimore, MD), Emergency Physicians Spps (Baltimore, MD) and Maryland Family Care, 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 Alexander Whitaker'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 Alexander Whitaker was last updated on April 20, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Alexander Stuart Whitaker, M.D. · NPI 1689917361
Pediatrics physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since April 1, 2013.
## Identity
- **NPI:** 1689917361 (Entity type: Individual)
- **Enumerated:** April 1, 2013
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** D81474 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 827 LINDEN AVE, 1ST FLOOR, Baltimore, MD 21201-4606
- **Phone:** (410) 225-8780 · **Fax:** (410) 225-8766
## 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): Saint Paul Place Specialists, Inc. (NPI 1225075856, Baltimore, MD); Emergency Physicians Spps (NPI 1760885958, Baltimore, MD); Maryland Family Care, Inc. (NPI 1598718256, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 20, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1689917361) · Data from the CMS NPPES public registry.