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

Individual provider Family Medicine Physician · NPI 1659468627

Joseph Michael Kosakoski Jr., DO is a Family Medicine Physician in Lancaster, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2006
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.

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Practice location Address checks out

230 Harrisburg Ave Ste 8
Lancaster, PA 17603-2959
Phone: (717) 509-1931
Fax: (717) 509-1934
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence OS4628L (PA)

Record details

NPI number1659468627
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedOctober 9, 2006
Last updated in NPPESJuly 8, 2007

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