Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. G Blair Dowden III, M.D.

Family Medicine Physician in Port Huron, MI · enumerated 2005 · practices at Blue Water Ob & Gyn PC.

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

National Provider Identifier

1750379194

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Registry record

Entity type Individual (Type 1)

Name Dr. G Blair Dowden III

Credential M.D.

Sex Male

Practice address 1313 Stone St, Port Huron, MI, 48060

Phone (810) 985-2620

Fax (810) 962-8290

Enumeration date Oct 10, 2005

Last updated in NPPES Apr 17, 2026

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 4301088847 (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
0740206	Other	MI	BCBSM
0741095	Other	MI	BCBS
1750379194	Medicaid	MI	-

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

What specialty is G Dowden?

G Dowden 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.

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.

Other providers at this practice address

Browse all →

Eric Hartman Obstetrics & Gynecology Physician · Port Huron, MI NPI 1174557029 Blue Water Ob & Gyn PC Obstetrics & Gynecology Physician · Port Huron, MI NPI 1508954603 Alan Kuester Obstetrics & Gynecology Physician · Port Huron, MI NPI 1750479846 John Murphy Obstetrics & Gynecology Physician · Port Huron, MI NPI 1790873842 Andrea Kozloff Family Medicine Physician · Port Huron, MI NPI 1902328925 Kinjal Kasbawala Student in an Organized Health Care Education/Training Program · Port Huron, MI NPI 1609564921 Ke Ma Student in an Organized Health Care Education/Training Program · Port Huron, MI NPI 1902656655 Ashan Perera Student in an Organized Health Care Education/Training Program · Port Huron, MI NPI 1891538831

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-17.