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Psychiatry

Paul G. Hammerness, MD

Works at hospitals in Boston, MA · Massachusetts

Summary

Dr. Paul G. Hammerness, MD is a psychiatrist at 1 Boston Medical Ctr Pl, Boston, MA 02118. Phone: (617) 414-5245. Accepts Medicare assignment. NPI 1417930850. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 1 Boston Medical Ctr Pl, Boston, MA 02118 · Directions (1 more location)
  • Phone: (617) 414‑5245
  • Medicare: Accepts Medicare assignment
  • Hospital: Boston Medical Center
  • Group practice: Boston University Psychiatry Associates, Inc.
  • Medical school: Geisel School Of Medicine At Dartmouth · graduated 1998 (28 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Paul G. Hammerness, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Paul G. Hammerness accept Medicare assignment?
Yes. Medicare's clinician data says Paul G. Hammerness accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Paul G. Hammerness's NPI number?
1417930850. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Paul G. Hammerness works

Medicare's Facility Affiliation Data lists Paul G. Hammerness at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Boston Medical CenterBoston, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220031

Practice locations

Addresses where Paul G. Hammerness is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Paul G. Hammerness as a member of this group (CMS data updated October 2, 2026).

  • Boston University Psychiatry Associates, Inc.106 clinicians in the group

Specialties

Find other Psychiatry doctors in Massachusetts →

Other psychiatrists in Boston

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

All psychiatrists in Boston →

Other clinicians in Boston University Psychiatry Associates, Inc.

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolGeisel School Of Medicine At Dartmouth
Graduation year1998 (28 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1417930850
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians