Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Christopher J Exner, MD

Individual provider Emergency Medicine Physician · NPI 1003955741

Christopher J Exner, MD practises Emergency Medicine in Danville, Pennsylvania. Graduated from Un of California, Irvine, College of Medicine in 1999, 27 years ago. Practices with Geisinger Clinic, a 3,413-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Pennsylvania.

Years since qualifying
27
Trained at
Un of California, Irvine, College of Medicine
Licensed in
IL, PA
In the registry since
2007
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

100 N Academy Ave
Danville, PA 17822-3501
Phone: (570) 271-6812
Fax: (570) 271-6507
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2875 W 19th St, Chicago, IL 60623-3501 — (773) 484-4831

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD437534 (PA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 036106855 (IL)

Record details

NPI number1003955741
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 6, 2007
Last updated in NPPESMarch 17, 2025
Certification dateMarch 17, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUN OF CALIFORNIA, IRVINE, COLLEGE OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Geisinger Clinic — 3413 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients99
Services billed 107 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Geisinger Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3413 clinicians in the practice; 12 are shown here.

Other providers in Danville