Timothy R. Quinn, MD

Medicare activity in 2024

Official CMS public-use data for Timothy R. Quinn, 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.

Most frequent services

1. Pathology examination of tissue using a microscope, intermediate complexity (88305)6,007 services
2. Special stained specimen slides to examine tissue, initial procedure (88342)383 services
3. Surgical pathology consultation and report on referred slides prepared elsewhere (88321)269 services
4. Special stained specimen slides to identify organisms including interpretation and report (88312)199 services
5. Pathology examination of tissue using a microscope, moderately low complexity (88304)193 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 cholesterol73%
• High blood pressure68%
• Arthritis43%
• Ischemic heart disease21%
• Diabetes20%
• Anxiety20%

Hospitals where Timothy R. Quinn works

Medicare's Facility Affiliation Data lists Timothy R. Quinn 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.

• Massachusetts General HospitalBoston, MA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 220071

Practice locations

Addresses where Timothy R. Quinn is enrolled with Medicare (CMS data updated October 2, 2026).

• 55 Fruit StBoston, MA 02114 (617) 724‑0287

Group practices

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

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

Specialties

• Pathologyprimary

Find other Pathology doctors in Massachusetts →

Other pathologists in Boston

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

• Sanda Alexandrescu, MD
• Pu Ni
• Wilfredo F. Garcia Beltran
• Long P. Le
• Valentina Nardi, MD
• Mark Redston, MD
• Juan Putra
• Daniel F. Ditoro, MD

All pathologists in Boston →

Other clinicians in Massachusetts General Physicians Organization Inc

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

• Jess L. Kaplan, MD
• Sandra P. Rincon, MD
• Whitney S. Roberts, CNA
• Ying Sun
• Matthew J. Lavallee, PA
• Carol S. Lim, MD

Clinician information

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