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

David E Guyer, MD

Individual provider Internal Medicine Physician · NPI 1710075080

David E Guyer, MD is an Internal Medicine Physician in Lancaster, Pennsylvania. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
Specialties on file
2
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

217 Harrisburg Ave
Lancaster, PA 17603-2964
Phone: (717) 544-8300
Fax: (717) 397-8401
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 232387 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 232387 (NY)

Record details

NPI number1710075080
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 11, 2006
Last updated in NPPESJune 19, 2012
Mailing address217 Harrisburg Ave, Lancaster, PA 17603-2964

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