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

Dr. William D Petras, DO

Individual provider Emergency Medicine Physician · NPI 1396758306

Dr. William D Petras, DO is registered under Family Practice in Rancho Mirage, California. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1999, 27 years ago. Practices with Eisenhower Medical Center, a 459-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
27
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

72780 Country Club Dr Ste 203
Rancho Mirage, CA 92270-4126 Not confirmed with CMS for 10 years — call before visiting
Phone: (760) 674-3847
Fax: (760) 674-3845
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 20A8158 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 20A8158 (CA)

Record details

NPI number1396758306
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 14, 2006
Last updated in NPPESFebruary 29, 2016

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1999 (27 years in practice)
Group practice Eisenhower Medical Center — 459 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of tissue 40 times · 76th percentile
Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients702
Services billed 839 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Eisenhower Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 459 clinicians in the practice; 12 are shown here.

Other providers in Rancho Mirage