Thomas K. Yohannan, MD

Medicare activity in 2024

Official CMS public-use data for Thomas K. Yohannan, 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. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)2,236 services
2. Nuclear medicine study from skull base to mid-thigh with ct scan (78815)307 services
3. Nuclear medicine study from skull base to mid-thigh (78812)149 services
4. Nuclear medicine study whole body with ct scan (78816)137 services
5. Ct scan of chest with contrast (71260)133 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 cholesterol67%
• High blood pressure66%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)52%
• Arthritis38%
• Ischemic heart disease28%
• Chronic kidney disease27%

Hospitals where Thomas K. Yohannan works

Medicare's Facility Affiliation Data lists Thomas K. Yohannan 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.

• UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050454

Practice locations

Addresses where Thomas K. Yohannan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 185 Berry StSan Francisco, CA 94107 (415) 476‑1000
• 225 California DrBurlingame, CA 94010 (650) 341‑9131
• 2330 Post StSan Francisco, CA 94115 (415) 476‑4029
• 3100 San Pablo AveBerkeley, CA 94702 (510) 985‑5020
• 400 Parnassus AveSan Francisco, CA 94143

Group practices

Medicare enrollment lists Thomas K. Yohannan as a member of these groups (CMS data updated October 2, 2026).

• University of California San Francisco1,839 clinicians in the group
• UCSF Medical Group Business Services1,598 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in California →

Other radiologists in San Francisco

Clinicians with the same Medicare primary specialty in San Francisco, CA — not a recommendation.

• Elham Beheshtian, MD
• Hamed Kordbacheh, MD
• Benjamin Yeh, MD
• Sheila S. Enamandram, MD
• John T. Mongan, MD
• Spencer C. Behr, MD
• Scott D. Flamm, MD
• Nazia F. Jafri, MD

All radiologists in San Francisco →

Other clinicians in University of California San Francisco

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

• Victoria E. Brown, MD
• Elham Beheshtian, MD
• Theodore P. Abraham, MD
• Jennifer Rosenbluth, MD
• Neel Pasricha, MD
• David M. Wilson, 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