Homayoun Siman, MD
General Practice Physician · Palm Desert, CA
Homayoun Siman, MD is a general practice physician with a practice address in Palm Desert, California, and NPI 1477971125, issued on Mar 31, 2014. Check the license (California A140616, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Homayoun Siman
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- A140616 CA
Self-reported in NPPES; status is on the state search - Practice location
- 73211 Fred Waring Dr Ste 101, Palm Desert, CA 92260
- Phone
- (607) 837-0321
- Enumerated
- Mar 31, 2014
- Record last updated
- Feb 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (760) 837-9114
- Medicaid ID
- CB285137 CA
- Medicare enrollment
- Enrolled (PECOS I20171103001112); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Homayoun Siman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A140616Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.2 times the Medicare Part D claims of the average general practice physician in 2024
12,627 Medicare Part D claims for 1,032 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 290 claims were for opioids.
Most prescribed
- Atorvastatin Calcium848 claims
- Levothyroxine Sodium500 claims
- Losartan Potassium390 claims
- Amlodipine Besylate377 claims
- Rosuvastatin Calcium306 claims
- Montelukast Sodium259 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): 85.7 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: $418.78
18 payments; by number, the most common kind was food and beverage; the largest payer was Shield Therapeutics Inc. The 4,259 providers of this specialty with any payment received $1,273.40 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 4 group practices
- Borrego Stat Care IncBorrego Spgs, CA
- Complete Care Family Medical ClinicWilmington, CA
- Healing Hand Family Care Clinics CorpIndio, CA
- Homayoun Siman ApcPalm Desert, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
General Practice Physician providers in California
There are 1,956 general practice physician records in California.
Other general practice physician records in California
- Hessam Aazami, M.D.Canoga Park, CA1144299173
- Ali Abaian, M.D.Los Angeles, CA1316061674
- Tahira Abbasi, MDLa Jolla, CA1619062346
- Ryan Abbott, M.D.Los Angeles, CA1194016030
- Adel Abdelsayed, M.D.Huntington Park, CA1922164961
- Kashif Abdullah, M.D. , M.P.HSan Jose, CA1164651212
- Ilona Abraham, MDEncino, CA1700939576
- Jerry Abraham, MD, MPH, CMQLos Angeles, CA1932514874
- Azniv Abrahamian, M.D.North Hollywood, CA1033270293
- Elliot Abravanel, MDSan Marino, CA1821610114
Common questions
What is Homayoun Siman, MD's NPI number?
Homayoun Siman, MD's National Provider Identifier (NPI) is 1477971125, issued on Mar 31, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Homayoun Siman, MD located?
The NPPES record lists a practice address at 73211 Fred Waring Dr Ste 101, Palm Desert, CA, 92260. Phone: (607) 837-0321. Providers update this record themselves, so call before visiting.
How can I verify Homayoun Siman, MD's license?
NPPES lists California license number A140616, 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 Homayoun Siman, MD prescribe under Medicare Part D?
In 2024, Homayoun Siman, MD had 12,627 Medicare Part D claims for 1,032 beneficiaries; the average among general practice physician prescribers was 3,030. Part D covers Medicare prescriptions only.
What is Homayoun Siman, MD's MIPS final score?
The 2023 MIPS final score is 85.7 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.