Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Cheng-An Mao, M.D.

Geriatric Medicine (Family Medicine) Physician in Clifton, NJ · enumerated 2006.

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

National Provider Identifier

1003854761

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Registry record

Entity type Individual (Type 1)

Name Dr. Cheng-An Mao

Credential M.D.

Sex Male

Practice address Clifton, NJ, 07012

Phone (862) 249-4904

Fax (862) 249-4903

Enumeration date Jun 3, 2006

Last updated in NPPES Jun 10, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 25MA062794 (NJ) Secondary

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License 25MA062794 (NJ) 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
1984962	Other	-	UHC
6955002	Medicaid	NJ	-
10212	Other	-	AMERIGROUP
2189814001	Other	-	AMERIHEALTH
60034428	Other	-	HORIZON NJ HEALTH
080182037	Other	-	RAILROAD MEDICARE
133674	Other	-	AETNA CAPITATION
677235	Other	-	AETNA HMO
P2540460	Other	-	OXFORD
2K1553	Other	-	HEALTHNET
5998308	Other	-	GHI
5120373	Other	-	AETNA
PS000004003	Other	-	AMERICHOICE

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 Cheng-An Mao?

Cheng-An Mao is registered in NPPES with the primary taxonomy of Geriatric Medicine (Family Medicine) 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 2010-06-10.