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Anesthesiology

Michelle Dyrholm, DO

Works at hospitals in Boston, MA · Massachusetts

Summary

Dr. Michelle Dyrholm, DO is an anesthesiologist at 55 Fruit St, Boston, MA 02114. Phone: (617) 724-0287. Accepts Medicare assignment. In 2024, Michelle Dyrholm had 190 Original Medicare patients and 205 services. NPI 1689106700. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 55 Fruit St, Boston, MA 02114 · Directions
  • Phone: (617) 724‑0287
  • Medicare: Accepts Medicare assignment
  • Hospital: Massachusetts General Hospital
  • Group practice: Massachusetts General Physicians Organization Inc
  • Medical school: Arizona College Of Osteopathic Medicine Mid Western University · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Michelle Dyrholm, 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 Michelle Dyrholm accept Medicare assignment?
Yes. Medicare's clinician data says Michelle Dyrholm 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 Michelle Dyrholm see?
In 2024, CMS data shows 190 Original Medicare patients and 205 services for Michelle Dyrholm. This counts Original Medicare only and measures volume, not quality.
What is Michelle Dyrholm's NPI number?
1689106700. 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 Michelle Dyrholm, 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 patients190
Services billed to Medicare205
Different services or procedures53
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Anesthesia for procedure for total knee joint replacement (01402)31 services
  2. Anesthesia for total hip replacement (01214)22 services
  3. Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)20 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%
  • High cholesterol75%
  • Arthritis75%
  • Ischemic heart disease39%
  • Depression39%
  • Anxiety39%

Hospitals where Michelle Dyrholm works

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

Group practices

Medicare enrollment lists Michelle Dyrholm as a member of this group (CMS data updated October 2, 2026).

  • Massachusetts General Physicians Organization Inc3,558 clinicians in the group

Specialties

Find other Anesthesiology doctors in Massachusetts →

Other anesthesiologists in Boston

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

All anesthesiologists in Boston →

Other clinicians in Massachusetts General Physicians Organization Inc

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

Clinician information

CredentialDO
Medical schoolArizona College Of Osteopathic Medicine Mid Western University
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1689106700
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