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Internal Medicine

Neal K. Peterson

Works at hospitals in Jamaica Plain, MA · Cambridge, MA · Massachusetts

Summary

Neal K. Peterson is an internal medicine doctor at 75 Mount Auburn St, Cambridge, MA 02138. Phone: (617) 496-8700. Accepts Medicare assignment. In 2024, Neal K. Peterson had 77 Original Medicare patients and 314 services. NPI 1912565979. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 75 Mount Auburn St, Cambridge, MA 02138 · Directions
  • Phone: (617) 496‑8700
  • Medicare: Accepts Medicare assignment
  • Hospitals: Brigham and Women Faulkner Hospital, Mount Auburn Hospital
  • Group practice: President and Fellows of Harvard College
  • Medical school: Medical University Of South Carolina College Of Medicine · graduated 2019 (7 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 Neal K. Peterson, 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 Neal K. Peterson accept Medicare assignment?
Yes. Medicare's clinician data says Neal K. Peterson 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.
How many Medicare patients does Neal K. Peterson see?
In 2024, CMS data shows 77 Original Medicare patients and 314 services for Neal K. Peterson. This counts Original Medicare only and measures volume, not quality.
What is Neal K. Peterson's NPI number?
1912565979. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Neal K. Peterson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients77
Services billed to Medicare314
Different services or procedures27
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)88 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)45 services
  3. Administration of influenza virus vaccine (G0008)32 services
  4. Influenza vaccine split virus, preservative free (90662)30 services
  5. Admn sarscov2 vacc 1 dose (90480)26 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol57%
  • High blood pressure49%
  • Arthritis32%
  • Anxiety19%
  • Depression18%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)16%

Hospitals where Neal K. Peterson works

Medicare's Facility Affiliation Data lists Neal K. Peterson 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.

Practice locations

Addresses where Neal K. Peterson is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Neal K. Peterson as a member of this group (CMS data updated October 2, 2026).

  • President and Fellows of Harvard College97 clinicians in the group

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Cambridge

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

All internal medicine doctors in Cambridge →

Other clinicians in President and Fellows of Harvard College

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

Clinician information

Medical schoolMedical University Of South Carolina College Of Medicine
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1912565979
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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians