Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. William Patrick Gahan, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1720088529

Dr. William Patrick Gahan, MD is a Geriatric Medicine (Internal Medicine) Physician in Baton Rouge, Louisiana. Licensed in Louisiana. Registered with an NPI since 2005.

Licensed in
LA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5247 Didesse Dr
Baton Rouge, LA 70808-9153
Phone: (225) 765-3076
Fax: (225) 765-3090
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 04634R (LA)

Record details

NPI number1720088529
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 22, 2005
Last updated in NPPESMarch 27, 2015

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