Paul Matthew Mandelin, D.O.
Radiation Oncology Physician · Corona, CA
Paul Matthew Mandelin, D.O. is a radiation oncology physician with a practice address in Corona, California, and NPI 1124290101, issued on Mar 30, 2008. Check the license (California 20A10281, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Paul Matthew Mandelin
- Credential
- D.O.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 20A10281 CA
55638 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1280 Corona Pointe CT, Corona, CA 92879
- Phone
- (951) 898-2826
- Enumerated
- Mar 30, 2008
- Record last updated
- Nov 13, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (951) 898-2811
- Medicare enrollment
- Enrolled (PECOS I20121023000315); accepts Medicare assignment
- Medical or professional school
- Western University Of Health Sciences College Of Dental Med, 2006
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 1280 Corona Pointe CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Hernandez, N.P.Adult Health Nurse Practitioner1487820155
- Frank Howard, M.D.Specialist1891737060
Verify Paul Matthew Mandelin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A10281Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average radiation oncology physician in 2024
15 Medicare Part D claims, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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 practice group's MIPS final score for 2023 (Medicare payment program): 99.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- City OF Hope Medical FoundationUpland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Paul Matthew Mandelin among 735 radiation oncology physician records in California
Paul Matthew Mandelin, D.O. 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 2008, is newer than 57% of them.
- NPI issued2008 · 57% of these records are older, 38% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2006 · median 2005 among the 545 with a school on file
- Record last updated2020 · 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 Corona → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Neung Kim, M.D.Corona, CA 928821063421923
- Christina Abel, NURSE PRACTITIONEROrange, CA 928681033638911
- Robert Ash, MDOrange, CA 928681326238650
- Tanuja Bhandari, MDOrange, CA 928681518147610
- Eric Chen, MDOrange, CA 928681578126124
- Megan Daly, M.D.Orange, CA 928681780863340
- Shera Feinstein, MDOrange, CA 928681437600194
- Krishna Hanubal, MDOrange, CA 928681568154458
Common questions
What is Paul Matthew Mandelin, D.O.'s NPI number?
Paul Matthew Mandelin, D.O.'s National Provider Identifier (NPI) is 1124290101, issued on Mar 30, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Paul Matthew Mandelin, D.O. located?
The NPPES record lists a practice address at 1280 Corona Pointe CT, Corona, CA, 92879. Phone: (951) 898-2826. Providers update this record themselves, so call before visiting.
How can I verify Paul Matthew Mandelin, D.O.'s license?
NPPES lists California license number 20A10281, 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 Paul Matthew Mandelin, D.O. prescribe under Medicare Part D?
In 2024, Paul Matthew Mandelin, D.O. had 15 Medicare Part D claims; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Paul Matthew Mandelin, D.O.'s MIPS final score?
The 2023 MIPS final score is 99.1 of 100, reported for the practice group. 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.