Alireza Mahmoudieh, MD
Radiation Oncology Physician · Merced, CA
Alireza Mahmoudieh, MD is a radiation oncology physician with a practice address in Merced, California, and NPI 1720166309, issued on Nov 1, 2006. Check the license (California A90452, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alireza Mahmoudieh
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A90452 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3303 M St, Merced, CA 95348
- Phone
- (209) 726-3410
- Enumerated
- Nov 1, 2006
- Record last updated
- Jun 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (209) 726-3371
- Medicaid ID
- 00A904520 CA
- Medicare enrollment
- Enrolled (PECOS I20050705000485); accepts Medicare assignment
- 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 3303 M St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelly Flores, NPNurse Practitioner1184003402
- Imtiaz Malik, M.D.Hematology & Oncology Physician1346278546
Verify Alireza Mahmoudieh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9.9 times the Medicare Part D claims of the average radiation oncology physician in 2024
1,333 Medicare Part D claims for 240 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 69 claims were for opioids.
Most prescribed
- Abiraterone Acetate96 claims
- Prednisone91 claims
- Cephalexin46 claims
- Dexamethasone45 claims
- Tamsulosin Hcl43 claims
- Anastrozole42 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): 100 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: $2,749.55
102 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. 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
- EL Portal Radiation Oncology CenterMerced, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alireza Mahmoudieh among 735 radiation oncology physician records in California
Alireza Mahmoudieh, MD 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 fileYes · 74% of these records are
- Graduated1999 · median 2005 among the 545 with a school on file
- Record last updated2014 · 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 Merced → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- David Lowther, MDModesto, CA 953501902880818
- Jorge Garcia-Young, M.D.Modesto, CA 953551902860802
- Eric Ku, MDModesto, CA 953551013478999
- Quoc Luu, M.D.Modesto, CA 953551689692808
- Christopher Neville, M.D.Modesto, CA 953551790743136
- Pericles Ioannides, M.D.Sonora, CA 953701386007367
- Haocheng Cai, DO, PHDTurlock, CA 953821548882632
- Frederick David, M.D.Santa Rosa, CA 954031982793808
Common questions
What is Alireza Mahmoudieh, MD's NPI number?
Alireza Mahmoudieh, MD's National Provider Identifier (NPI) is 1720166309, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alireza Mahmoudieh, MD located?
The NPPES record lists a practice address at 3303 M St, Merced, CA, 95348. Phone: (209) 726-3410. Providers update this record themselves, so call before visiting.
How can I verify Alireza Mahmoudieh, MD's license?
NPPES lists California license number A90452, 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 Alireza Mahmoudieh, MD prescribe under Medicare Part D?
In 2024, Alireza Mahmoudieh, MD had 1,333 Medicare Part D claims for 240 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Alireza Mahmoudieh, MD's MIPS final score?
The 2023 MIPS final score is 100 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.