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

Dr. Ruben Corral Fragoso, MD, PHD

Individual provider Radiation Oncology Physician · NPI 1417154436

Dr. Ruben Corral Fragoso, MD, PHD practises Radiation Oncology in Sacramento, California. Graduated from Harvard Medical School in 2004, 22 years ago. Practices with Regents of the Univ of Ca, a 1,578-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California and Pennsylvania.

Years since qualifying
22
Trained at
Harvard Medical School
Licensed in
CA, PA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

4501 X St Ste 0156
Sacramento, CA 95817-2229
Phone: (916) 734-8276
Fax: (916) 703-5069
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence A109259 (CA)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence MT187129 (PA)

Record details

NPI number1417154436
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJuly 2, 2007
Last updated in NPPESJanuary 17, 2024
Certification dateJanuary 17, 2024

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2004 (22 years in practice)
Group practice Regents Of The Univ Of Ca — 1578 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients223
Services billed 1,983 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.

Food and Beverage $28 1 payment · 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.

  • University Of California Davis Medical Center Hospital · Sacramento, CA · listed as University of California, Davis Medical Center
  • Adventist Health And Rideout Hospital · Marysville, CA
  • Enloe Health Hospital · Chico, CA

Colleagues at Regents of the Univ of Ca

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1578 clinicians in the practice; 12 are shown here.

Other providers in Sacramento