Joshua S. Mervis, MD

Medicare activity in 2024

Official CMS public-use data for Joshua S. Mervis, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)227 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)151 services
3. Destruction of precancer skin growth, 2-14 growths (17003)135 services
4. Removal of skin and tissue, 20.0 sq cm or less (11042)98 services
5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)77 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 cholesterol74%
• High blood pressure72%
• Arthritis42%
• Diabetes33%
• Chronic kidney disease29%
• Depression28%

Hospitals where Joshua S. Mervis works

Medicare's Facility Affiliation Data lists Joshua S. Mervis 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.

• Tufts Medical CenterBoston, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220116

Practice locations

Addresses where Joshua S. Mervis is enrolled with Medicare (CMS data updated October 2, 2026).

• 800 Washington StBoston, MA 02111 (617) 636‑5000

Group practices

Medicare enrollment lists Joshua S. Mervis as a member of this group (CMS data updated October 2, 2026).

• Pratt Med/Surg Dermatology Associates Inc21 clinicians in the group

Specialties

• Dermatologyprimary

Find other Dermatology doctors in Massachusetts →

Other dermatologists in Boston

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

• Yevgeniy R. Semenov, MD
• Susan Burgin, MD
• Sandhya C. Deverapalli
• Tony L. Vu, MD
• Nicholas Theodosakis, MD
• Joyce H. Hoot, MD
• Cecilia A. Larocca, MD
• Shiri Nawrocki, MD

All dermatologists in Boston →

Other clinicians in Pratt Med/Surg Dermatology Associates Inc

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

• Sandhya C. Deverapalli
• Jeffrey M. Sobell, MD
• Joyce H. Hoot, MD
• Rebecca Dufner, MD
• Catherine M. Baker, MD
• Farah Moustafa, 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