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

Dr. Quinten M Vanderwerf, MEDICALDORCTOR

Individual provider Otolaryngology Physician · NPI 1134224280

Dr. Quinten M Vanderwerf, MEDICALDORCTOR practises Otolaryngology in Rancho Mirage, California. Graduated from University of California, Geffen School of Medicine in 1991, 35 years ago. Practices with Desert Ear Nose and Throat Medical Group Inc, an 8-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2006
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Practice location Address checks out

39000 Bob Hope Dr W301
Rancho Mirage, CA 92270-3221 Not confirmed with CMS for 10 years — call before visiting
Phone: (760) 340-4566
Fax: (760) 340-2481
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence G76937 (CA)

Record details

NPI number1134224280
Entity typeIndividual (Type 1)
GenderMale
Credentials MEDICALDORCTOR
Sole proprietorNo
NPI enumeratedSeptember 13, 2006
Last updated in NPPESSeptember 1, 2016

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice Desert Ear Nose And Throat Medical Group Inc — 8 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.

Melanoma (skin cancer) excision 11 times · 64th percentile
Skin biopsy 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 patients1,388
Services billed 7,361 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 $45 2 payments · a meal or drink at a meeting or visit, 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.

Colleagues at Desert Ear Nose and Throat Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 8 clinicians in the practice; 6 are shown here.

Other providers in Rancho Mirage