Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Brian J Sullivan, MD

Neurological Surgery Physician in Annapolis, MD · enumerated 2005.

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

National Provider Identifier

1013915883

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Brian J Sullivan

Credential MD

Sex Male

Practice address 1000 Bestgate Rd Ste 400, Annapolis, MD, 21401

Phone (410) 266-2720

Fax (410) 244-0209

Enumeration date Jul 14, 2005

Last updated in NPPES Nov 26, 2018

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License D0050954 (MD) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
76918803	Other	-	BCBS
W8490002	Other	DC	BCBS
3550284	Other	-	AETNA
76918806	Other	MD	BCBS
471782	Other	-	MAMSI
352303900	Medicaid	MD	-
76918804	Other	-	BCBS
76918807	Other	MD	BCBS
487760200	Other	-	FEDERAL WORKMANS COMP
J4570002	Other	DC	BCBS
D3800006	Other	DC	BCBS

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

Is NPI 1013915883 active?

Yes, as of the latest NPPES snapshot, NPI 1013915883 is active (record last updated 2018-11-26).

How do I verify Brian Sullivan's NPI record?

Cross-check NPI 1013915883 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-26.