Ruben Corral Fragoso, MD, PHD
Radiation Oncology Physician · Sacramento, CA
Ruben Corral Fragoso, MD, PHD is a radiation oncology physician with a practice address in Sacramento, California, and NPI 1417154436, issued on Jul 2, 2007. Check the license (California A109259, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ruben Corral Fragoso
- Credential
- MD, PHD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- A109259 CA
MT187129 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4501 X St, Sacramento, CA 95817
- Phone
- (916) 734-8276
- Enumerated
- Jul 2, 2007
- Record last updated
- Jan 17, 2024
- Fax
- (916) 703-5069
- Medicare enrollment
- Enrolled (PECOS I20091022000048); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 4501 X St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristine Ahlberg, RNOncology Registered Nurse1982086567
- Danielle Baham, RDRegistered Dietitian1427533249
- Cheryl Breed, NPNurse Practitioner1760408959
- Laura Brennan, F.N.PFamily Nurse Practitioner1235389826
- Radha CanepaInternal Medicine Physician1760767511
- Sally Denardo, M.D.Internal Medicine Physician1568447878
Verify Ruben Corral Fragoso in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A109259Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average radiation oncology physician in 2024
28 Medicare Part D claims for 17 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Dexamethasone14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 90.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $115.66
1 payment: food and beverage; the largest payer was Accuray Incorporated. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Regents OF The Univ OF CAMerced, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ruben Corral Fragoso among 735 radiation oncology physician records in California
Ruben Corral Fragoso, MD, PHD is one of 735 radiation oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 43% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2004 · median 2005 among the 545 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Sacramento → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Zelanna Goldberg, M.D.Sacramento, CA 958171669454385
- Arta Monjazeb, M.D., PH.D.Sacramento, CA 958171619136835
- Minahal NaveedSacramento, CA 958171356099592
- Ky Nam Nguyen, M.D.Sacramento, CA 958171285011254
- Tony Quang, M.D.Sacramento, CA 958171457334534
- Shyam Rao, M.D., PH.D.Sacramento, CA 958171265559694
- Richard Valicenti, M.D.Sacramento, CA 958171235152232
- Charles Wang, MD / PHDSacramento, CA 958171710650411
Common questions
What is Ruben Corral Fragoso, MD, PHD's NPI number?
Ruben Corral Fragoso, MD, PHD's National Provider Identifier (NPI) is 1417154436, issued on Jul 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ruben Corral Fragoso, MD, PHD located?
The NPPES record lists a practice address at 4501 X St, Sacramento, CA, 95817. Phone: (916) 734-8276. Providers update this record themselves, so call before visiting.
How can I verify Ruben Corral Fragoso, MD, PHD's license?
NPPES lists California license number A109259, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ruben Corral Fragoso, MD, PHD prescribe under Medicare Part D?
In 2024, Ruben Corral Fragoso, MD, PHD had 28 Medicare Part D claims for 17 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Ruben Corral Fragoso, MD, PHD's MIPS final score?
The 2023 MIPS final score is 90.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.