MARK HIRSCHKORN (M.D.) – Gastroenterology Physician, NPI 1518923713

MARK HIRSCHKORN (M.D.) is a healthcare provider. based in Chicopee, Massachusetts. specializing in Gastroenterology Physician. They hold the professional credentials M.D.. They hold a License No. 53604 (MA). The NPI Number for MARK HIRSCHKORN (M.D.) is 1518923713

Main info

Male
49 Years Of Experience
Accepts Medicare Assignment
Name
MARK HIRSCHKORN (M.D.)
NPI
1518923713
Phone
(413) 594-3111
Address
444 MONTGOMERY ST
Enumeration Date
25 April 2006
Last Update Date
16 February 2011

Doctor Profile

Medical School Name
NEW YORK UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
4135943111
Graduation Year
1977 (49 years ago)
PAC ID
2163478991
Group Practice PAC ID
5698064343
Professional Enrollment ID
I20050324000884
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for MARK HIRSCHKORN (M.D.)

  • RiverBend Medical Group, 444, Montgomery Street, Chicopee, Hampden County, Massachusetts, 01020, United States

    CHICOPEE, MA 010201969

    Phone: (413) 594-3111

    Fax: (413) 789-8047

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 01020)

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Provider's Procedures

MARK HIRSCHKORN (M.D.) performs procedures in Gastroenterology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
GASTROENTEROLOGYMA43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope3130
GASTROENTEROLOGYMA85610Blood test, clotting time2221

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 5698064343View full group profile
NameSpecialtyState
DR. VALERIE LORRAINE ZAVALUNOV (DNP)
Nurse PractitionerMA
MICHAEL J MCDONALD (PA)
-MA
MRINAL S MALI (M.D.)
Diagnostic RadiologyMA
ALLISON LEIGH LUTHER (PA-C)
-NY
DAVID A. MCKAY (M.D.)
-MA
FADI BSAT (MD)
-MA
MRS. LORETTA C RICHARDSON (CNM)
-CT
ANALY DUONG (PHYSICIAN ASSISTANT)
Physician AssistantMA
CHRISTOPHER WOLF (DPM)
P O D I A T R YMA
MR. COLIN JAMES ROBINSON (PA)
Physician AssistantMA

Reviews

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Frequently asked questions

Can I verify MARK HIRSCHKORN (M.D.) with an NPI only?
You can start verification with NPI 1518923713 for MARK HIRSCHKORN (M.D.), then check state licensing separately.
Can I rely on MARK HIRSCHKORN (M.D.) being an active provider?
As of the registry snapshot, MARK HIRSCHKORN (M.D.) is marked active.
What is MARK HIRSCHKORN (M.D.)'s specialty?
The listing groups MARK HIRSCHKORN (M.D.) with Gastroenterology Physician. Clinical services aligned with this taxonomy classification.
Does MARK HIRSCHKORN (M.D.) list a practice location?
Patients near Chicopee, Massachusetts may find MARK HIRSCHKORN (M.D.) in results; validate coverage separately.
Why does MARK HIRSCHKORN (M.D.) have multiple addresses?
2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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