Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Cary Douglas Brown, M.D.

Surgery Physician in Rockville, MD · enumerated 2005.

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

National Provider Identifier

1992700629

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Cary Douglas Brown

Credential M.D.

Sex Male

Practice address 9901 Medical Center Dr, Rockville, MD, 20850

Phone (270) 826-6106

Fax (240) 826-5963

Enumeration date Jun 17, 2005

Last updated in NPPES Apr 23, 2025

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License D-18658 (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
2594	Other	MD	BLUE CROSS MD/DC
538591100	Medicaid	MD	-
152133	Other	-	PHCS
2088996	Other	MD	AETNA

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Cary Brown?

Cary Brown is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-23.