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Family Practice

Lauren M. Wondolowski, MD

Works at hospitals in Martinez, CA · California

Summary

Dr. Lauren M. Wondolowski, MD is a family doctor at 331 C St, Martinez, CA 94553. Accepts Medicare assignment. NPI 1720414550. 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: 331 C St, Martinez, CA 94553 · Directions
  • Medicare: Accepts Medicare assignment
  • Hospital: Contra Costa Regional Medical Center
  • Medical school: graduated 2012 (14 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Lauren M. Wondolowski, 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 Lauren M. Wondolowski accept Medicare assignment?
Yes. Medicare's clinician data says Lauren M. Wondolowski 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 Lauren M. Wondolowski's NPI number?
1720414550. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Lauren M. Wondolowski works

Medicare's Facility Affiliation Data lists Lauren M. Wondolowski 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 Lauren M. Wondolowski is enrolled with Medicare (CMS data updated October 2, 2026).

  • 331 C StMartinez, CA 94553

Specialties

Find other Family Practice doctors in California →

Other family doctors in Martinez

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

All family doctors in Martinez →

Clinician information

CredentialMD
Graduation year2012 (14 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1720414550
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