Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Peter Lac, MD

Individual provider Nephrology Physician · NPI 1881617652

Peter Lac, MD practises Internal Medicine in Wildomar, California. Graduated from University of California, Irvine, California College of Medicine in 2003, 23 years ago. Practices with Nephrology Associates Medical Group Inc, a 64-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
23
Trained at
University of California, Irvine, California College of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

36320 Inland Valley Dr Ste 308
Wildomar, CA 92595-7512
Phone: (951) 600-7630
Fax: (951) 600-7164
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 591 E Elder St Ste C, Fallbrook, CA 92028-5001 — (951) 687-7140
  • 27851 Bradley Rd, Menifee, CA 92586-2286 — (951) 672-7967

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence A91135 (CA)

Record details

NPI number1881617652
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 25, 2006
Last updated in NPPESAugust 10, 2021
Certification dateAugust 10, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesNEPHROLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Nephrology Associates Medical Group Inc — 64 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients434
Services billed 3,060 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $99 5 payments · a meal or drink at a meeting or visit, not a fee
Education $17 8 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Nephrology Associates Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 64 clinicians in the practice; 12 are shown here.

Other providers in Wildomar