GBMC HOSPITAL BASED SERVICES, LLC
NPI 1699610667
Anesthesiology in Baltimore, MD
About Gbmc Hospital Based Services, Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GBMC HOSPITAL BASED SERVICES, LLC (NPI 1699610667) is a healthcare organization registered as an anesthesiology in Baltimore, Maryland and active in the NPI registry since April 2026. The organization lists Peter Carl Ostasewski, Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gbmc Hospital Based Services, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
72Medicare enrollment records show 72 clinicians reassign Medicare billing to Gbmc Hospital Based Services, LLC, which bills Medicare for the services they deliver. Of these, 49 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 3
Nearest to this location (20)
See all 72Baltimore, 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 Gbmc Hospital Based Services, LLC's NPI number?
The NPI number for Gbmc Hospital Based Services, LLC is 1699610667. It was assigned to this organization in the NPPES registry on April 23, 2026.
Where is Gbmc Hospital Based Services, LLC located?
Gbmc Hospital Based Services, LLC is located at 6569 N Charles St Ppw 1st Floor, Baltimore, MD 21204. The listed phone number is (443) 849-2420.
What is Gbmc Hospital Based Services, LLC's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Gbmc Hospital Based Services, LLC enrolled in Medicare?
Yes. Gbmc Hospital Based Services, LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Gbmc Hospital Based Services, LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 72 clinicians in 3 Medicare specialties reassign their Medicare billing to Gbmc Hospital Based Services, LLC. 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 Anesthesiology (40), Certified Registered Nurse Anesthetist (CRNA) (31) and General Surgery (1). Of these, 49 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Gbmc Hospital Based Services, LLC was last updated on April 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Gbmc Hospital Based Services, Llc · NPI 1699610667
Anesthesiology organization in Baltimore, Maryland. Organization record, active in the CMS NPPES registry since April 23, 2026.
## Identity
- **NPI:** 1699610667 (Entity type: Organization)
- **Enumerated:** April 23, 2026
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **Organization subpart:** Yes (part of Greater Baltimore Medical Center, Inc.)
- **Authorized official:** Peter Ostasewski, CFO
## Practice location
- **Address:** 6569 N CHARLES ST, PPW 1ST FLOOR, Baltimore, MD 21204-6831
- **Phone:** (443) 849-2420
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 72 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Anesthesiology (40), Certified Registered Nurse Anesthetist (CRNA) (31), General Surgery (1); 49 practice within 10 miles; [full list](https://npiprofile.com/npi/1699610667/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1699610667) · Data from the CMS NPPES public registry.