Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Alex J Gershenhorn, MD

Individual provider Gastroenterology Physician · NPI 1437257797

Alex J Gershenhorn, MD is a Gastroenterology in Middletown, New York. Graduated from Ohio State University College of Medicine in 2000, 26 years ago. Practices with Crystal Run Healthcare Physicians LLP, a 366-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
26
Trained at
Ohio State University College of Medicine
Licensed in
NY
In the registry since
2006
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

95 Crystal Run Rd
Middletown, NY 10941-7001
Phone: (845) 703-6999
Fax: (845) 703-6297
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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 227291 (NY)

Record details

NPI number1437257797
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESAugust 17, 2020
Certification dateAugust 17, 2020

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Crystal Run Healthcare Physicians Llp — 366 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Middletown