GREATER BALTIMORE MEDICAL CENTER, INC.
NPI 1396774238
General Practice in Baltimore, MD
About Greater Baltimore Medical Center, Inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREATER BALTIMORE MEDICAL CENTER, INC. (NPI 1396774238) is a healthcare organization registered as a general practice in Baltimore, Maryland and active in the NPI registry since July 2006. The organization lists Peter Carl Ostasewski, Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Greater Baltimore Medical Center, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
443Medicare enrollment records show 443 clinicians reassign Medicare billing to Greater Baltimore Medical Center, Inc., which bills Medicare for the services they deliver. Of these, 33 practice at this address and 326 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 38
Nearest to this location (20)
See all 443Baltimore, MD 21204
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Greater Baltimore Medical Center, Inc.'s NPI number?
The NPI number for Greater Baltimore Medical Center, Inc. is 1396774238. It was assigned to this organization in the NPPES registry on July 2, 2006.
Where is Greater Baltimore Medical Center, Inc. located?
Greater Baltimore Medical Center, Inc. is located at 6701 N Charles St, Baltimore, MD 21204. The listed phone number is (443) 849-2000.
What is Greater Baltimore Medical Center, Inc.'s specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Greater Baltimore Medical Center, Inc. enrolled in Medicare?
Yes. Greater Baltimore Medical Center, Inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Greater Baltimore Medical Center, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 443 clinicians in 38 Medicare specialties reassign their Medicare billing to Greater Baltimore Medical Center, Inc.. A 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 the clinician's services. The largest specialties are Nurse Practitioner (92), Hospitalist (50) and Internal Medicine (40). Of these, 33 practice at this address and 326 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Greater Baltimore Medical Center, Inc. accept?
Health plans from Blue Cross Blue Shield of Wyoming and Blue Cross and Blue Shield of Louisiana list Greater Baltimore Medical Center, Inc. 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.
When was this NPI record last updated?
The NPPES record for Greater Baltimore Medical Center, Inc. was last updated on February 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Greater Baltimore Medical Center, Inc. · NPI 1396774238
General Practice organization in Baltimore, Maryland. Organization record, active in the CMS NPPES registry since July 2, 2006.
## Identity
- **NPI:** 1396774238 (Entity type: Organization)
- **Enumerated:** July 2, 2006
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **Organization subpart:** Yes (part of Greater Baltimore Medical Center, Inc.)
- **Authorized official:** Peter Ostasewski, CFO
## Practice location
- **Address:** 6701 N CHARLES ST, Baltimore, MD 21204-6808
- **Phone:** (443) 849-2000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 443 clinicians in 38 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (92), Hospitalist (50), Internal Medicine (40); 33 practice at this address and 326 within 10 miles; [full list](https://npiprofile.com/npi/1396774238/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 20, 2026
- **Other identifiers:** Other KJ22 (MD); Other S123 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1396774238) · Data from the CMS NPPES public registry.