John Paul Thropay, M.D.
Radiation Oncology Physician · Montebello, CA
John Paul Thropay, M.D. is a radiation oncology physician with a practice address in Montebello, California, and NPI 1427128073, issued on Nov 9, 2006. Check the license (California G32178, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Paul Thropay
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- G32178 CA
Self-reported in NPPES; status is on the state search - Practice location
- 120 W Beverly Blvd, Montebello, CA 90640
- Phone
- (323) 724-8780
- Enumerated
- Nov 9, 2006
- Record last updated
- Jan 29, 2024
- Fax
- (323) 728-9936
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 120 W Beverly Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jackson Ma, M.D.Internal Medicine Physician1447298732
Verify John Paul Thropay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G32178Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% more Medicare Part D claims than the average radiation oncology physician in 2024
154 Medicare Part D claims for 55 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl38 claims
- Lidocaine Hcl Viscous15 claims
- Ciprofloxacin Hcl11 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.
Industry payments in 2024: $27.17
1 payment: food and beverage; the largest payer was Novocure Inc. 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.
John Paul Thropay among 735 radiation oncology physician records in California
John Paul Thropay, M.D. 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 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- 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 Montebello → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Kevin Diao, MDWhittier, CA 906061578067260
- William Kurohara, M.D.Whittier, CA 906061073665618
- Jeffrey Yuen, M.D.Whittier, CA 906061831241751
- Richard Li, MDWhittier, CA 906021174973739
- Abhishek Kumar, MDCerritos, CA 907031043847114
- Liam Ghiam, MD, MSLos Alamitos, CA 907201689123879
- Rebecca Philipson, M.D.Torrance, CA 905051184079766
- Andrew Schumacher, M.D.Torrance, CA 905051023457173
Common questions
What is John Paul Thropay, M.D.'s NPI number?
John Paul Thropay, M.D.'s National Provider Identifier (NPI) is 1427128073, issued on Nov 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Paul Thropay, M.D. located?
The NPPES record lists a practice address at 120 W Beverly Blvd, Montebello, CA, 90640. Phone: (323) 724-8780. Providers update this record themselves, so call before visiting.
How can I verify John Paul Thropay, M.D.'s license?
NPPES lists California license number G32178, 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 John Paul Thropay, M.D. prescribe under Medicare Part D?
In 2024, John Paul Thropay, M.D. had 154 Medicare Part D claims for 55 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
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.