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

Mark Koshar, MD

Individual provider Internal Medicine Physician · NPI 1538161963

Mark Koshar, MD is an Internal Medicine in Easton, Pennsylvania. Graduated from Rutgers New Jersey Medical School in 1974, 52 years ago. Practices with Lehigh Valley Physician Group, a 2,493-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
52
Trained at
Rutgers New Jersey Medical School
Licensed in
PA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3735 Nazareth Rd Ste 301
Easton, PA 18045-8338
Phone: (610) 829-2200
Fax: (610) 829-2211
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD016576E (PA)

Record details

NPI number1538161963
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 15, 2005
Last updated in NPPESMarch 2, 2016
Mailing addressPo Box 783311, Philadelphia, PA 19178-3311

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 1974 (52 years in practice)
Group practice Lehigh Valley Physician Group — 2493 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Other providers in Easton