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

Mark S Ryan, MD

Individual provider Internal Medicine Physician · NPI 1679667513

Mark S Ryan, MD is an Internal Medicine Physician in Geneva, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
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

200 N St Ste 101
Geneva, NY 14456-1561
Phone: (315) 787-5100
Fax: (315) 787-5108
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 164272 (NY)

Record details

NPI number1679667513
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 3, 2006
Last updated in NPPESJune 28, 2010
Mailing address200 North St, Suite 101, Geneva, NY 14456-1561

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