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

NPI Status: Active since March 23, 2026

Contact Information

2700 QUARRY LAKE DR STE 100
BALTIMORE, MD
ZIP 21209
Phone: (410) 653-0077
Fax: (410) 653-0463

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  • Organization
  • Anesthesiology

About GBMC HOSPITAL BASED SERVICES, LLC.

This page provides the complete NPI Profile along with additional information for Gbmc Hospital Based Services, Llc., an anesthesiologist established in Baltimore, Maryland operating as a Anesthesiology. The healthcare provider is registered in the NPI registry with number 1659219673 assigned on March 2026. The practitioner's primary taxonomy code is 207L00000X. The provider is registered as an organization and their NPI record was last updated March 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Peter Carl Ostasewski (Cfo)

NPI
1659219673
Provider Name
GBMC HOSPITAL BASED SERVICES, LLC.
Entity Type
Organization
Location Address
2700 QUARRY LAKE DR STE 100 BALTIMORE, MD 21209
Location Phone
(410) 653-0077
Location Fax
(410) 653-0463
Mailing Address
6545 N CHARLES ST STE 102 BALTIMORE, MD 21204
Is Sole Proprietor?
No
Is Organization Subpart?
Yes
Enumeration Date
03-23-2026
Last Update Date
03-23-2026
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An anesthesiologist like Gbmc Hospital Based Services, Llc. manages the care of surgical patients and pain relief through drug administration that reduces or eliminates pain during an operation, medical procedure or during labor and delivery of babies. During surgical procedures anesthesiologists are responsible for adjusting the amount of anesthetic, monitoring the patient's heart rate, body temperature, blood pressure and breathing.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Anesthesiology

Taxonomy Code
207L00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

PETER CARL OSTASEWSKI

Authorized Official Title
CFO
Authorized Official Phone
(443) 849-2511

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1659219673, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
6
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
9
Unchanged
Pos 5
2
Doubled → 4
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
3
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 5 → 10 → 1 2 → 4 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 6 + 1 + 0 + 9 + 4 + 1 + 1 + 8 + 6 + 1 + 4 + 24 = 67

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1659219673.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Neurological Surgery
2700 QUARRY LAKE DR STE 100
BALTIMORE, MD 21209

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1659219673, enumerated as an "organization" on March 23, 2026.

The provider is located at 2700 QUARRY LAKE DR STE 100 BALTIMORE, MD 21209 and the phone number is (410) 653-0077.

Anesthesiology with taxonomy code 207L00000X.