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Ophthalmology

Jennifer J. Diehn, MD

Works at hospitals in San Francisco, CA · California

Summary

Dr. Jennifer J. Diehn, MD is an ophthalmologist at 395 Hickey Blvd, Daly City, CA 94015. Phone: (650) 301-5860. Accepts Medicare assignment. NPI 1295813798. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 395 Hickey Blvd, Daly City, CA 94015 · Directions
  • Phone: (650) 301‑5860
  • Medicare: Accepts Medicare assignment
  • Hospital: California Pacific Medical Center- Van Ness Campus
  • Group practice: Permanente Medical Group Inc
  • Medical school: Stanford University School Of Medicine · graduated 2002 (24 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jennifer J. Diehn, 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 Jennifer J. Diehn accept Medicare assignment?
Yes. Medicare's clinician data says Jennifer J. Diehn 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 Jennifer J. Diehn's NPI number?
1295813798. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jennifer J. Diehn works

Medicare's Facility Affiliation Data lists Jennifer J. Diehn 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 Jennifer J. Diehn is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jennifer J. Diehn as a member of this group (CMS data updated October 2, 2026).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Ophthalmology doctors in California →

Other ophthalmologists in Daly City

Clinicians with the same Medicare primary specialty in Daly City, CA — not a recommendation.

All ophthalmologists in Daly City →

Other clinicians in Permanente Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolStanford University School Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1295813798
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