Juan M. Perez Velazquez, MD

Medicare activity in 2024

Official CMS public-use data for Juan M. Perez Velazquez, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)94 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)89 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)85 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)59 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)27 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%
• Arthritis54%
• Depression53%
• Anxiety52%
• Chronic kidney disease49%

Hospitals where Juan M. Perez Velazquez works

Medicare's Facility Affiliation Data lists Juan M. Perez Velazquez 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.

• UMass Memorial Healthalliance HospitalsLeominster, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220001
• UMass Memorial Medical Center/University CampusWorcester, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220163

Practice locations

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

• 119 Belmont StWorcester, MA 01605 (508) 334‑1000
• 157 Union StMarlborough, MA 01752 (508) 486‑5521

Group practices

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

• UMass Memorial Medical Group Inc2,516 clinicians in the group

Specialties

• Infectious Diseaseprimary
• Internal Medicinealso

Find other Infectious Disease doctors in Massachusetts →

Other infectious disease doctors in Worcester

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

• Sandeep S. Jubbal, MD
• Stuart M. Levitz, MD
• Houman J. Javady, MD
• Jennifer P. Wang, MD
• Theodore Rader, MD
• Mireya A. Wessolossky, MD
• David M. Bebinger, MD
• Thomas C. Greenough, MD

All infectious disease doctors in Worcester →

Other clinicians in UMass Memorial Medical Group Inc

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

• Stephen Martin, MD
• Trevor M. Berlo
• Kanishka Bhattacharya, MD
• Tianle Zou, MD
• Justin A. Maykel, MD
• Sandeep S. Jubbal, 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