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Clinical Psychologist

Mark A. Gapen

Sees patients in Hadley, MA · Massachusetts

Summary

Mark A. Gapen (Clinical Psychologist) is enrolled with Medicare at 2 practice locations in Hadley, MA. NPI 1467786616. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(413) 351‑0562 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Mark A. Gapen, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

2Practice locations
Clinical PsychologistPrimary specialty
YesAccepts Medicare assignment
17Years since medical school (graduated 2009)
Emory University School Of MedicineMedical school
MaleGender (as listed)

Quick answers

Where does Mark A. Gapen see patients?
Medicare's clinician data lists 2 practice locations, including Hadley, MA. Call before your visit to confirm the address.
What is Mark A. Gapen's specialty?
Medicare lists Clinical Psychologist as the primary specialty.
Does Mark A. Gapen accept Medicare assignment?
Yes. Medicare's clinician data says Mark A. Gapen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Mark A. Gapen?
(413) 351-0562, as listed in official Medicare / NPI Registry data.
What is Mark A. Gapen's NPI number?
1467786616. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Mark A. Gapen is enrolled with Medicare (CMS data updated 2026-10-02).

  • 104 Russell StHadley, MA 01035
  • 104 Russell St, Suite 6Hadley, MA 01035 (413) 351‑0562

Specialties

Find other clinicians: Clinical Psychologist, Massachusetts →

Other clinical psychologists in Hadley

Clinicians with the same Medicare primary specialty in Hadley, MA — not a recommendation.

All clinical psychologists in Hadley →

Clinician information

Medical schoolEmory University School Of Medicine
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467786616
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians