NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Kouyoumdjian, D.O.

Family Medicine Physician in Norristown, PA · enumerated 2005.

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

National Provider Identifier

1316938053

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Registry record

Entity type Individual (Type 1)
Name Michael Kouyoumdjian
Credential D.O.
Sex Male
Practice address 1437 Dekalb St, Suite 101, Norristown, PA, 19401
Fax (610) 275-1381
Enumeration date Nov 2, 2005
Last updated in NPPES Dec 20, 2012

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License OS012453 (PA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
34238OS012453 Other PA HEALTHPARTNERS
7904588 Other PA AUSHC PPO
P3328720 Other PA OXFORD
30021852 Other PA KMHP
1012103820001 Medicaid PA -
2307449000 Other PA KEYSTONE HEALTHPLAN EAST
231396763 Other PA DEVON
K001631770 Other PA HIGHMARK BLUE SHIELD
0299820 Other PA CIGNA
3618677 Other PA AUSHC HMO
231396763 Other PA UHC
01 01847 Other PA EVERCARE
11460 Other PA ELDERHEALTH
231396763005 Other PA TRICARE

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 Michael Kouyoumdjian?
Michael Kouyoumdjian is registered in NPPES with the primary taxonomy of 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 2012-12-20.