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Internal Medicine

Sajan R. Patel, MD

Works at hospitals in San Francisco, CA · California

Summary

Dr. Sajan R. Patel, MD is an internal medicine doctor at 400 Parnassus Ave, San Francisco, CA 94143. Phone: (415) 476-4029. Accepts Medicare assignment. In 2024, Sajan R. Patel had 66 Original Medicare patients and 169 services. NPI 1235427568. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 400 Parnassus Ave, San Francisco, CA 94143 · Directions
  • Phone: (415) 476‑4029
  • Medicare: Accepts Medicare assignment
  • Hospital: UCSF Medical Center
  • Group practice: Regents of the University of California
  • Medical school: New York University School Of Medicine · graduated 2011 (15 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Sajan R. Patel, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Sajan R. Patel accept Medicare assignment?
Yes. Medicare's clinician data says Sajan R. Patel accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Sajan R. Patel see?
In 2024, CMS data shows 66 Original Medicare patients and 169 services for Sajan R. Patel. This counts Original Medicare only and measures volume, not quality.
What is Sajan R. Patel's NPI number?
1235427568. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Sajan R. Patel, 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.

Original Medicare patients66
Services billed to Medicare169
Different services or procedures7
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)66 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)64 services
  3. Hospital discharge day management, more than 30 minutes (99239)29 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 disease55%
  • Arthritis48%
  • Diabetes47%
  • Heart failure44%

Hospitals where Sajan R. Patel works

Medicare's Facility Affiliation Data lists Sajan R. Patel 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.

Practice locations

Addresses where Sajan R. Patel is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sajan R. Patel as a member of this group (CMS data updated October 2, 2026).

  • Regents of the University of California732 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Francisco

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

All internal medicine doctors in San Francisco →

Other clinicians in Regents of the University of California

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

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1235427568
CorrectionsReport an error or suggest an update →

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