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GBMC HOSPITAL BASED SERVICES, LLC.
NPI 1659219673
Anesthesiology in Baltimore, MD

Active since March 23, 2026
2700 QUARRY LAKE DR STE 100, BALTIMORE, MD 21209(410) 653-0077(410) 653-0463 Get Directions Write a Review

NPPES record last updated: March 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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 1659219673) is a healthcare organization registered as an anesthesiology in Baltimore, Maryland and active in the NPI registry since March 2026. The organization lists Peter Carl Ostasewski, Cfo, as its authorized official.

NPPES Registry Identity

NPI1659219673
Entity TypeOrganization
Primary Taxonomy207L00000X
Legal Business NameGBMC HOSPITAL BASED SERVICES, LLC.
Location Address2700 QUARRY LAKE DR STE 100Baltimore, MD 21209-3761
Mailing Address6545 N Charles St Ste 102Baltimore, MD 21204-6836
Phone(410) 653-0077
Fax(410) 653-0463
Organization SubpartYesParent: Greater Baltimore Medical Center, Inc.
Authorized OfficialPeter Carl OstasewskiCfo · (443) 849-2511
Enumeration DateMarch 23, 2026
NPPES CertifiedMarch 23, 2026
✔ NPI 1659219673 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
2700 QUARRY LAKE DR STE 100, Baltimore, MD 21209
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

72

Medicare enrollment records show 72 clinicians reassign Medicare billing to Gbmc Hospital Based Services, LLC., which bills Medicare for the services they deliver. Of these, 48 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 3

Anesthesiology40
Certified Registered Nurse Anesthetist (CRNA)31
General Surgery1

Nearest to this location (20)

See all 72
Steven Beaudry, D.O.
Anesthesiology
NPI 1558688333
2401 W BELVEDERE AVE
Baltimore, MD 21215
(410) 601-9386
✔ PECOS✔ Accepts Medicare2.6 mi
Rahool Patel, MD
Anesthesiology
NPI 1851920391
2401 W BELVEDERE AVE
Baltimore, MD 21215
(410) 601-7639
✔ PECOS✔ Accepts Medicare2.7 mi
Opeyemi Popoola, M.D.
Anesthesiology
NPI 1730342114
2401 W BELVEDERE AVE
Baltimore, MD 21215
(410) 601-5838
✔ PECOS✔ Accepts Medicare2.7 mi
Jill Jani, M.D.
Anesthesiology
NPI 1134377641
2401 W BELVEDERE AVE DEPARTMENT OF ANESTHESIOLOGY 5TH FLOOR
Baltimore, MD 21215
(410) 601-5209
✔ PECOS✔ Accepts Medicare2.7 mi
Farid Amin, M.D.
Anesthesiology
NPI 1649271669
6701 N CHARLES ST
Towson, MD 21204
(410) 296-4616
✔ PECOS✔ Accepts Medicare3.6 mi
Amanda Billig, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1346933835
6701 N CHARLES ST STE 4902
Baltimore, MD 21204
(443) 849-2202
✔ Accepts Medicare3.6 mi
Katie Blenner, M.D.
Anesthesiology
NPI 1750728317
6701 N CHARLES ST
Towson, MD 21204
(443) 829-2000
✔ PECOS✔ Accepts Medicare3.6 mi
Daniel Copeland, MD
Anesthesiology
NPI 1265964811
6701 N CHARLES ST
Baltimore, MD 21204
(443) 849-2000
✔ PECOS✔ Accepts Medicare3.6 mi
Tim Dinh, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1083769152
6701 N CHARLES ST STE 4226
Towson, MD 21204
(410) 296-4616
✔ Accepts Medicare3.6 mi
Kara Gerstmyer, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1588086516
6701 N CHARLES ST
Baltimore, MD 21204
(410) 296-4616
✔ Accepts Medicare3.6 mi
Jonathan Hamburger, M.D.
Anesthesiology
NPI 1902807688
6701 N CHARLES ST
Baltimore, MD 21204
(410) 296-4616
✔ PECOS✔ Accepts Medicare3.6 mi
Monika Harold
Certified Registered Nurse Anesthetist (CRNA)
NPI 1063105344
6701 N CHARLES ST
Towson, MD 21204
(443) 849-3880
✔ Accepts Medicare3.6 mi
Mark Joseph, M.D.
Anesthesiology
NPI 1457647208
6701 N CHARLES ST GREATER BALTIMORE MEDICAL CENTER
Baltimore, MD 21204
(443) 849-2202
✔ PECOS✔ Accepts Medicare3.6 mi
Ngoc Pham, MD
Anesthesiology
NPI 1316382476
6701 N CHARLES ST
Towson, MD 21204
(443) 849-2202
✔ PECOS✔ Accepts Medicare3.6 mi
Jacqueline Saad, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1144524018
6701 N CHARLES ST
Towson, MD 21204
(410) 296-4616
3.6 mi
Lara Shodeinde, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1811770456
6701 N CHARLES ST
Towson, MD 21204
(443) 849-2000
3.6 mi
Jason Valdez, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1356678262
6701 N CHARLES ST
Towson, MD 21204
(410) 296-4616
✔ Accepts Medicare3.6 mi
Kathryn Woods, CRNA
Certified Registered Nurse Anesthetist (CRNA)
NPI 1902343825
6701 N CHARLES ST
Baltimore, MD 21204
(443) 849-2000
✔ Accepts Medicare3.6 mi
Christopher Reed
Certified Registered Nurse Anesthetist (CRNA)
NPI 1053731489
6701 N CHARLES ST
Baltimore, MD 21204
(443) 849-2000
✔ Accepts Medicare3.6 mi
John Flowers, M.D.
General Surgery
NPI 1891735965
6535 N CHARLES ST STE 125
Baltimore, MD 21204
(410) 821-6260
✔ PECOS✔ Accepts Medicare3.7 mi
See all 72 clinicians

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 1659219673. It was assigned to this organization in the NPPES registry on March 23, 2026.

Where is Gbmc Hospital Based Services, LLC. located?

Gbmc Hospital Based Services, LLC. is located at 2700 Quarry Lake Dr Ste 100, Baltimore, MD 21209. The listed phone number is (410) 653-0077.

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, 48 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 March 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.