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

Dr. Gary Steven Horwith, MD

Individual provider Internal Medicine Physician · NPI 1972734440

Dr. Gary Steven Horwith, MD is an Internal Medicine Physician in Oley, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2009
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

125 Boyer Rd
Oley, PA 19547-8786
Phone: (301) 602-7401
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence MD034658E (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD034658E (PA)

Record details

NPI number1972734440
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 1, 2009
Last updated in NPPESJanuary 3, 2020
Certification dateJanuary 3, 2020