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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Athar Siddiqui, M.D.

Internal Medicine Physician in Ypsilanti, MI · enumerated 2005 · practices at Medical Associates, PC.

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

National Provider Identifier

1083691299

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Registry record

Entity type Individual (Type 1)
Name Dr. Athar Siddiqui
Credential M.D.
Sex Male
Practice address 428 S Grove St, Ypsilanti, MI, 48198
Phone (734) 483-7136
Fax (734) 483-3422
Enumeration date Dec 29, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301034780 (MI) 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
0643416 Other MI UMWA
103452 Other MI CARECHOICES
1001085325 Medicaid MI -
103452 Other MI PREFERRED CHOICES
1108172912 Other MI BCBS OF MI
008913 Other MI MIDWEST
C1687 Other MI MCARE
M008530 Other MI CHAMP

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 Athar Siddiqui?
Athar Siddiqui 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 2007-07-08.