Stephen D. Cassivi, MD

Medicare activity in 2024

Official CMS public-use data for Stephen D. Cassivi, 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. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)45 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)29 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)20 services
4. Initial removal of wedge of lung tissue using an endoscope (32666)18 services
5. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)14 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 cholesterol75%
• High blood pressure72%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)52%
• Arthritis46%
• Ischemic heart disease33%
• COPD31%

Hospitals where Stephen D. Cassivi works

Medicare's Facility Affiliation Data lists Stephen D. Cassivi 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.

• Mayo Clinic Hospital RochesterRochester, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240010

Practice locations

Addresses where Stephen D. Cassivi is enrolled with Medicare (CMS data updated October 2, 2026).

• 1216 2nd St SWRochester, MN 55902 (507) 255‑5123
• 200 1st St SWRochester, MN 55905

Group practices

Medicare enrollment lists Stephen D. Cassivi as a member of this group (CMS data updated October 2, 2026).

• Mayo Clinic4,956 clinicians in the group

Specialties

• Thoracic Surgeryprimary

Find other Thoracic Surgery doctors in Minnesota →

Other thoracic surgeons in Rochester

Clinicians with the same Medicare primary specialty in Rochester, MN — not a recommendation.

• Janani S. Reisenauer, MD
• Luis F. Tapias Vargas, MD
• Rajajee Selvam
• Dennis A. Wigle, MD
• K Robert Shen, MD
• Kimberly Holst, MD
• Carlos A. Puig Gilbert, MD

All thoracic surgeons in Rochester →

Other clinicians in Mayo Clinic

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

• Mustaqeem Siddiqui, MD
• Daniel R. Hilliker
• Austin D. Chen, MD
• Marcus D. Goodfellow
• Jennifer M. Hill
• Lauren D. Pomerantz, 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