Seyed Hamrahian, MD

Medicare activity in 2024

Official CMS public-use data for Seyed Hamrahian, 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)149 services
2. Dialysis services, 4 or more physician visits per month (20 years or older) (90960)144 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)108 services
4. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)83 services
5. Hemodialysis procedure with physician evaluation (90935)64 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%
• Chronic kidney disease75%
• Diabetes53%
• Heart failure51%
• Ischemic heart disease50%

Hospitals where Seyed Hamrahian works

Medicare's Facility Affiliation Data lists Seyed Hamrahian 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.

• Thomas Jefferson University HospitalPhiladelphia, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390174

Practice locations

Addresses where Seyed Hamrahian is enrolled with Medicare (CMS data updated October 2, 2026).

• 833 Chestnut St E, 7th Flr Suite 700Philadelphia, PA 19107 (215) 503‑3000

Group practices

Medicare enrollment lists Seyed Hamrahian as a member of this group (CMS data updated October 2, 2026).

• Jefferson University Physicians1,531 clinicians in the group

Specialties

• Nephrologyprimary

Find other Nephrology doctors in Pennsylvania →

Other nephrologists in Philadelphia

Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.

• Arpitha M. Reddy, MD
• Michelle Denburg
• Patricia J. Lyons, MD
• Kirk Campbell, MD
• Mauricio Pedroza, MD
• Dan Negoianu, MD
• Hasan Arif, MD
• Amanda K. Leonberg Yoo, MD

All nephrologists in Philadelphia →

Other clinicians in Jefferson University Physicians

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

• Rebecca L. Davis, MD
• Laurence Needleman, MD
• Natalie Rosen, MD
• John J. Madison, CNA
• Maria Sciotto, MD
• Karen A. Olshanskaya, PA

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