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

Mr. Jonathan Ohm, MD

Individual provider Internal Medicine Physician · NPI 1124447438

Mr. Jonathan Ohm, MD practises Internal Medicine in Allentown, Pennsylvania. Graduated from Rutgers New Jersey Medical School in 2014, 12 years ago. Practices with Gslpg, Inc, a 267-clinician group and accepts Medicare assignment. Licensed in Connecticut, Massachusetts and Pennsylvania.

Years since qualifying
12
Trained at
Rutgers New Jersey Medical School
Licensed in
CT, MA, PA
In the registry since
2014
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

501 Cetronia Rd
Allentown, PA 18104-9569
Phone: (484) 526-6545
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD473308 (PA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 270012 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (CT)

Record details

NPI number1124447438
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 15, 2014
Last updated in NPPESSeptember 12, 2025
Certification dateSeptember 12, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesGASTROENTEROLOGY
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 2014 (12 years in practice)
Group practice Gslpg, Inc — 267 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
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.

Upper gastrointestinal (GI) endoscopy for acid reflux 95 times · 76th percentile
Colonoscopy 82 times · 75th 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 patients280
Services billed 468 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. Those with a page here are linked.

Colleagues at Gslpg, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 267 clinicians in the practice; 12 are shown here.

Other providers in Allentown