Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Adolfo Romero Duran, MD

Works at hospitals in San Leandro, CA · California

Summary

Dr. Adolfo Romero Duran, MD is a family doctor at 2500 Merced St, San Leandro, CA 94577. Phone: (510) 454-1000. Accepts Medicare assignment. NPI 1275690836. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 2500 Merced St, San Leandro, CA 94577 · Directions (1 more location)
  • Phone: (510) 454‑1000
  • Medicare: Accepts Medicare assignment
  • Hospital: Kaiser Foundation Hospital - San Leandro
  • Group practice: Permanente Medical Group Inc
  • Medical school: graduated 1994 (32 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Adolfo Romero Duran, 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 Adolfo Romero Duran accept Medicare assignment?
Yes. Medicare's clinician data says Adolfo Romero Duran 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.
What is Adolfo Romero Duran's NPI number?
1275690836. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Adolfo Romero Duran works

Medicare's Facility Affiliation Data lists Adolfo Romero Duran 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 Adolfo Romero Duran is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Adolfo Romero Duran as a member of this group (CMS data updated October 2, 2026).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in San Leandro

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

All family doctors in San Leandro →

Other clinicians in Permanente Medical Group Inc

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

Clinician information

CredentialMD
Graduation year1994 (32 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1275690836
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians