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

Dr. Matthew Joshua Shellenberger, DO

Individual provider Internal Medicine Physician · NPI 1619911237

Dr. Matthew Joshua Shellenberger, DO practises Gastroenterology in Danville, Pennsylvania. Graduated from Philadelphia College of Osteopathic Medicine in 2003, 23 years ago. Practices with Geisinger-Hm Joint Venture LLC, a 428-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
23
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
PA
In the registry since
2006
Specialties on file
2
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

100 N Academy Ave
Danville, PA 17822-1401
Phone: (570) 271-6164
Fax: (570) 271-6141
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence OS013253 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence OS013253 (PA)

Record details

NPI number1619911237
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 15, 2006
Last updated in NPPESAugust 6, 2020
Certification dateAugust 6, 2020

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2003 (23 years in practice)
Group practice Geisinger-Hm Joint Venture Llc — 428 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Colonoscopy 142 times · 87th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 95 times · 76th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients421
Services billed 553 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-Hm Joint Venture LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 428 clinicians in the practice; 12 are shown here.

Other providers in Danville