Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Debbie-Ann L Tan, M.D.

Internal Medicine Physician in Fall River, MA · enumerated 2006.

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

National Provider Identifier

1265498851

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Registry record

Entity type Individual (Type 1)

Name Dr. Debbie-Ann L Tan

Credential M.D.

Sex Female

Practice address 277 Pleasant St, Prima Care, PC, Fall River, MA, 02721

Phone (508) 676-3292

Enumeration date Apr 24, 2006

Last updated in NPPES Aug 31, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 81849 (MA) 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
0016214	Other	MA	NEIGHBORHOOD HEALTHPLAN
110219104	Other	MA	RAILROAD MEDICARE
000000021252	Other	MA	BMC HEALTHNET
3144097	Medicaid	MA	-
3684747	Other	MA	HEALTHSOURCE
204804	Other	RI	BLUE CHIP
521354	Other	MA	AETNA
65030	Other	MA	HARVARD PILGRIM
081849	Other	MA	TUFTS HEALTH PLAN
B10491501	Other	MA	CIGNA
0000029261	Other	RI	BLUE SHIELD
J16300	Other	MA	BLUE SHIELD
0403475	Other	MA	UNITED HEALTHCARE

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 Debbie-Ann Tan?

Debbie-Ann Tan is registered in NPPES with the primary taxonomy of Internal 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 2012-08-31.