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

Dr. John Duncan Gay, MD

Individual provider Diagnostic Radiology Physician · NPI 1821025412

Dr. John Duncan Gay, MD is a Diagnostic Radiology Physician in Topeka, Kansas. Licensed in Kansas. Registered with an NPI since 2006.

Licensed in
KS
In the registry since
2006
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

823 SW Mulvane St Ste #1
Topeka, KS 66606-1679
Phone: (785) 234-3451
Fax: (785) 234-2550
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 04-15714 (KS)

Record details

NPI number1821025412
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2006
Last updated in NPPESJuly 8, 2007

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