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Internal Medicine

Marc R. Larochelle, MD

Works at hospitals in Boston, MA · Massachusetts

Summary

Dr. Marc R. Larochelle, MD is an internal medicine doctor at 88 E Newton St, Boston, MA 02118. Phone: (617) 414-5405. Accepts Medicare assignment. In 2024, Marc R. Larochelle had 32 Original Medicare patients and 68 services. NPI 1942437611. 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: 88 E Newton St, Boston, MA 02118 · Directions
  • Phone: (617) 414‑5405
  • Medicare: Accepts Medicare assignment
  • Hospital: Boston Medical Center
  • Group practice: Evans Medical Foundation Inc
  • Medical school: University Of Pittsburgh School Of Medicine · graduated 2009 (17 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Marc R. Larochelle, 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 Marc R. Larochelle accept Medicare assignment?
Yes. Medicare's clinician data says Marc R. Larochelle 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 Marc R. Larochelle see?
In 2024, CMS data shows 32 Original Medicare patients and 68 services for Marc R. Larochelle. This counts Original Medicare only and measures volume, not quality.
What is Marc R. Larochelle's NPI number?
1942437611. 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 Marc R. Larochelle, 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 patients32
Services billed to Medicare68
Different services or procedures8
Participating Medicare providerYes
Average age of these patients67

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)36 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)22 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 blood pressure75%
  • Diabetes50%
  • High cholesterol47%

Hospitals where Marc R. Larochelle works

Medicare's Facility Affiliation Data lists Marc R. Larochelle 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 Marc R. Larochelle is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marc R. Larochelle as a member of this group (CMS data updated October 2, 2026).

  • Evans Medical Foundation Inc536 clinicians in the group

Specialties

Find other Internal Medicine doctors in Massachusetts →

Other internal medicine doctors in Boston

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

All internal medicine doctors in Boston →

Other clinicians in Evans Medical Foundation Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Pittsburgh School Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1942437611
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