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

Dr. Mark A Shelly, MD

Individual provider Internal Medicine Physician · NPI 1023027927

Dr. Mark A Shelly, MD is an Infectious Disease in Danville, Pennsylvania. Graduated from Jefferson Medical College of Thomas Jefferson University in 1986, 40 years ago. Practices with Geisinger Clinic, a 3,413-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York and Pennsylvania.

Years since qualifying
40
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
NY, PA
In the registry since
2006
Specialties on file
3
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

100 N Academy Ave
Danville, PA 17822
Phone: (570) 271-6408
Fax: (570) 271-5845
Show map & directions

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

Additional practice locations (1)

  • 1000 South Ave # 45, Rochester, NY 14620-2733 — (585) 341-6821

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence MD463888 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 172506 (NY)
Infectious Disease Physician Taxonomy 207RI0200X · Licence 172506 (NY)

Record details

NPI number1023027927
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 7, 2006
Last updated in NPPESAugust 31, 2020
Certification dateAugust 31, 2020
Mailing address100 N Academy Ave, Danville, PA 17822-4903

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1986 (40 years in practice)
Group practice Geisinger Clinic — 3413 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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