Federico O. Rivera, MD

Medicare activity in 2024

Official CMS public-use data for Federico O. Rivera, 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. Anesthesia for lens surgery (00142)115 services
2. Anesthesia for other procedure on large bowel using an endoscope (00811)64 services
3. Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance (01938)37 services
4. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)27 services
5. Anesthesia for procedure for total knee joint replacement (01402)26 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%
• Anxiety39%
• Diabetes29%
• Depression28%

Hospitals where Federico O. Rivera works

Medicare's Facility Affiliation Data lists Federico O. Rivera 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.

• Saint Anne's HospitalFall River, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220020

Practice locations

Addresses where Federico O. Rivera is enrolled with Medicare (CMS data updated October 2, 2026).

• 300 Grove StWorcester, MA 01605 (781) 585‑9522
• 88 Washington StTaunton, MA 02780 (508) 828‑7000
• 97 Libbey Pkwy, Suite 300Weymouth, MA 02189 (781) 331‑2922

Group practices

Medicare enrollment lists Federico O. Rivera as a member of these groups (CMS data updated October 2, 2026).

• Lifespan Physician Group of Massachusetts Inc476 clinicians in the group
• South Suburban Gastroenterology PC48 clinicians in the group
• Tri Anesthesia LLC36 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in Massachusetts →

Other anesthesiologists in Worcester

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

• Ronald B. Rubin, MD
• Leah A. Dusett, MD
• Stanley J. Konieczny Iii, DO
• Ryan Nazemian, MD
• Joseph Foley, MD
• Gregory J. Mitchon, MD
• Elias A. Nammour, MD
• Karl-Heinz Spittler

All anesthesiologists in Worcester →

Other clinicians in Lifespan Physician Group of Massachusetts Inc

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

• Michael W. McSweeney, CNA
• Autumn S. Makowski
• Philippe Vuylsteke, MD
• L Pet, MD
• Joon Chang, MD
• Raymond B. Khawand, 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