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

Dr. John C Gengo, DDS

Individual provider General Practice Dentistry · NPI 1023102506

Dr. John C Gengo, DDS is a General Practice Dentistry in Olean, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2006
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

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Practice location Address checks out

120 N Second St
Olean, NY 14760-2502
Phone: (716) 372-8970
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Dentistry (primary) Taxonomy 1223G0001X · Licence 042407 (NY)

Record details

NPI number1023102506
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedOctober 2, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1253 Kamery Rd., Olean, NY 14760-2502

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