Juan G. Perez, MD

Medicare activity in 2024

Official CMS public-use data for Juan G. Perez, 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. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)133 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)19 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)12 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%
• Arthritis58%
• Anxiety55%
• Depression50%
• Heart failure50%

Hospitals where Juan G. Perez works

Medicare's Facility Affiliation Data lists Juan G. Perez 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.

• Mount Auburn HospitalCambridge, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220002

Practice locations

Addresses where Juan G. Perez is enrolled with Medicare (CMS data updated October 2, 2026).

• 330 Brookline AveBoston, MA 02215 (617) 754‑8612
• 330 Mount Auburn StCambridge, MA 02138 (781) 983‑9088

Group practices

Medicare enrollment lists Juan G. Perez as a member of this group (CMS data updated October 2, 2026).

• Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc1,740 clinicians in the group

Specialties

• Internal Medicineprimary

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.

• Sarah D. Tait, MD
• Ghulam K. Khan, MD
• Larissa Nekhlyudov, MD
• Martin J. Abrahamson, MD
• Diana C. Lemly, MD
• Alix R. Schrager, MD
• Matthew P. Vitale, MD
• Adam Albano, MD

All internal medicine doctors in Boston →

Other clinicians in Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc

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

• Peter Steinberg
• Leslie Bilello, MD
• Yinan Hua, MD
• Samuel L. Joseph
• Antea J. Demarsilis, MD
• Swati R. Dhanireddy, 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