Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Chang B. Choi, MD

Hospitalist Physician in Annapolis, MD · enumerated 2005.

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

National Provider Identifier

1912907593

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Registry record

Entity type Individual (Type 1)

Name Dr. Chang B. Choi

Credential MD

Sex Male

Practice address 2001 Medical Pkwy, Annapolis, MD, 21401

Phone (443) 481-1000

Enumeration date Jul 26, 2005

Last updated in NPPES May 20, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D0061783 (MD) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 0101262334 (VA) 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
64275401	Other	-	BCBS-MD
0025	Other	-	CAREFIRST BCBS
405721000	Medicaid	MD	-
7470776	Other	-	AETNA
1194607	Other	-	AETNA
405721000	Other	-	AMERIGROUP - AMERICAID
0039732900	Other	-	FEDERAL BLACK LUNG BENEFITS
122012	Other	-	JHHC
0025	Other	-	BCBS-DC
AH01	Other	-	ENVOY SITE ID

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.

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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 Chang Choi?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-20.