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Greater Baltimore Medical Center, Inc.

General Practice Physician in Baltimore, MD · enumerated 2006 · authorized official Peter Ostasewski, Cfo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1396774238

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Registry record

Entity type Organization (Type 2)
Legal business name Greater Baltimore Medical Center, Inc.
Parent organization Greater Baltimore Medical Center, Inc.
Practice address 6701 N Charles St, Baltimore, MD, 21204
Phone (443) 849-2000
Enumeration date Jul 2, 2006
Last updated in NPPES Feb 20, 2026

Taxonomy & classification

208D00000X General Practice Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Peter Ostasewski
Title Cfo
Phone (717) 531-1159

Other identifiers

Identifier Type State Issuer
KJ22 Other MD CAREFIRST MARYLAND GBMC
S123 Other MD CAREFIRST REGIONAL

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Greater Baltimore Medical Center, Inc.?
Greater Baltimore Medical Center, Inc. is registered in NPPES as a General Practice Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-20.