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

Arun Jacob, MD

Individual provider Internal Medicine Physician · NPI 1427305440

Arun Jacob, MD practises Internal Medicine in Danville, Pennsylvania. Qualified in 2009, 17 years ago. Practices with Geisinger Clinic, a 3,413-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
17
Licensed in
PA
In the registry since
2012
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 17822-2019
Phone: (570) 214-9585
Fax: (570) 214-9519
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD455572 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MT201613 (PA)

Record details

NPI number1427305440
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 9, 2012
Last updated in NPPESFebruary 11, 2021
Certification dateFebruary 11, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Geisinger Clinic — 3413 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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 patients178
Services billed 635 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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