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Psychiatry

John J. Diggins, MD

Works at hospitals in Southbridge, MA · Massachusetts

Summary

John J. Diggins, MD (Psychiatry) is listed by Medicare at 1 hospital in Southbridge, MA. NPI 1952519415. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John J. Diggins, 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

PsychiatryPrimary specialty
YesAccepts Medicare assignment
23Years since medical school (graduated 2003)
University Of Cincinnati College Of MedicineMedical school
MaleGender (as listed)
UMass Memorial Medical Group IncGroup practice

Quick answers

Which hospitals does John J. Diggins work at?
Medicare's official clinician data lists John J. Diggins at 1 hospital: UMass Memorial Health - Harrington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John J. Diggins see patients?
Medicare's clinician data lists 1 practice location in Worcester, MA. Call before your visit to confirm the address.
What is John J. Diggins's specialty?
Medicare lists Psychiatry as the primary specialty.
Does John J. Diggins accept Medicare assignment?
Yes. Medicare's clinician data says John J. Diggins 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 John J. Diggins?
(508) 334-1000, as listed in official Medicare / NPI Registry data.
What is John J. Diggins's NPI number?
1952519415. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John J. Diggins works

Medicare's Facility Affiliation Data lists John J. Diggins at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John J. Diggins is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John J. Diggins as a member of this group (CMS data updated 2026-10-02).

  • UMass Memorial Medical Group Inc2,516 clinicians in the group

Specialties

Find other Psychiatry doctors in Massachusetts →

Other psychiatrists in Worcester

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

All psychiatrists in Worcester →

Clinician information

CredentialMD
Medical schoolUniversity Of Cincinnati College Of Medicine
Graduation year2003
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1952519415
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians