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

Matthew Rettig, MD

Individual provider Medical Oncology Physician · NPI 1487751798

Matthew Rettig, MD practises Hematology/Oncology in Los Angeles, California. Graduated from Duke University School of Medicine in 1990, 36 years ago. Practices with The Regents of the University of California, a 46-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
36
Trained at
Duke University School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
3
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

200 UCLA Medical Plz Ste 140
Los Angeles, CA 90095-3075
Phone: (310) 794-7152
Fax: (310) 794-1666
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence A52586 (CA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence A52586 (CA)
Urology Physician Taxonomy 208800000X · Licence A52586 (CA)

Record details

NPI number1487751798
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 20, 2006
Last updated in NPPESJanuary 9, 2020
Certification dateJanuary 9, 2020

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolDUKE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice The Regents Of The University Of California — 46 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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 patients160
Services billed 1,645 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $35,291 11 payments
Consulting Fee $10,710 1 payment
Travel and Lodging $4,119 15 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $983 24 payments · a meal or drink at a meeting or visit, not a fee
Education $9 1 payment · 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.

  • Ronald Reagan Ucla Medical Center Hospital · Los Angeles, CA
  • Santa Monica - Ucla Med Ctr & Orthopaedic Hospital Hospital · Santa Monica, CA
  • Ucla West Valley Medical Center Hospital · West Hills, CA

Colleagues at The Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 46 clinicians in the practice; 12 are shown here.

Other providers in Los Angeles