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Obstetrics/Gynecology

Irene S. Ofarrell, MD

Sees patients in Santa Rosa, CA · California

Summary

Dr. Irene S. Ofarrell, MD is an OB-GYN at 401 Bicentennial Way, Santa Rosa, CA 95403. Phone: (707) 393-4000. Accepts Medicare assignment. NPI 1730267238. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 401 Bicentennial Way, Santa Rosa, CA 95403 · Directions
  • Phone: (707) 393‑4000
  • Medicare: Accepts Medicare assignment
  • Group practice: Permanente Medical Group Inc
  • Medical school: Medical College Of Wisconsin · 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 Irene S. Ofarrell, 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 Irene S. Ofarrell accept Medicare assignment?
Yes. Medicare's clinician data says Irene S. Ofarrell 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 Irene S. Ofarrell's NPI number?
1730267238. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Irene S. Ofarrell is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Irene S. Ofarrell as a member of this group (CMS data updated October 2, 2026).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Santa Rosa

Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.

All OB-GYNs in Santa Rosa →

Other clinicians in Permanente Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolMedical College Of Wisconsin
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1730267238
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians