Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Stefan Ruehm, MD

Individual provider Diagnostic Radiology Physician · NPI 1669416632

Stefan Ruehm, MD practises Diagnostic Radiology in Los Angeles, California. Qualified in 1992, 34 years ago. Practices with UCLA Radiology Medical Group, a 198-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
34
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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

100 UCLA Medical Plz Ste 100
Los Angeles, CA 90024-7000
Phone: (310) 301-6800
Fax: (310) 794-9035
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (2)

  • 13630 Van Nuys Blvd Ste 107, Pacoima, CA 91331-3668 — (747) 777-6099
  • 1245 16th St Ste 105, Santa Monica, CA 90404-1239 — (310) 301-6800

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A97859 (CA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence A97859 (CA)
Vascular & Interventional Radiology Physician Taxonomy 2085R0204X · Licence A97859 (CA)

Record details

NPI number1669416632
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESMarch 24, 2025
Certification dateMarch 24, 2025

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1992 (34 years in practice)
Group practice Ucla Radiology Medical Group — 198 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations33 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 patients1,691
Services billed 51,770 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Travel and Lodging $947 3 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $562 4 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. Those with a page here are linked.

  • Martin Luther King, Jr. Community Hospital Hospital · Los Angeles, CA · listed as Martin Luther King Jr Community Medical Foundation
  • 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
  • Careplus Hospice Hospice · Burbank, CA

Colleagues at UCLA Radiology Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 198 clinicians in the practice; 12 are shown here.

Other providers in Los Angeles