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

Aaron Mendelson, MD

Individual provider Gastroenterology Physician · NPI 1235499898

Aaron Mendelson, MD practises Gastroenterology in Allentown, Pennsylvania. Graduated from Jefferson Medical College of Thomas Jefferson University in 2012, 14 years ago. Practices with Valley Health Partners Community Health Center, a 122-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Pennsylvania.

Years since qualifying
14
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
PA
In the registry since
2012
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

1501 N Cedar Crest Blvd Ste 110
Allentown, PA 18104
Phone: (610) 821-2828
Fax: (610) 821-7915
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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 MD452088 (PA)

Record details

NPI number1235499898
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 16, 2012
Last updated in NPPESMay 26, 2021
Certification dateMay 26, 2021

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 2012 (14 years in practice)
Group practice Valley Health Partners Community Health Center — 122 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.

Upper gastrointestinal (GI) endoscopy for acid reflux 233 times · 92nd percentile
Colonoscopy 150 times · 89th 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 patients553
Services billed 9,856 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Valley Health Partners Community Health Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 122 clinicians in the practice; 12 are shown here.

Other providers in Allentown