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

Dr. John Lisiak Jr., DO

Individual provider Internal Medicine Physician · NPI 1194868091

Dr. John Lisiak Jr., DO is an Internal Medicine Physician in Clarks Summit, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

611 Morgan Hwy
Clarks Summit, PA 18411-9128
Phone: (570) 585-6700
Fax: (570) 585-6714
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 OS013862 (PA)

Record details

NPI number1194868091
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedFebruary 14, 2007
Last updated in NPPESJuly 8, 2007
Mailing address844 Elm St, Olyphant, PA 18447-2136

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