Reza Khorsan, M.D.
Nephrology Physician · Santa Monica, CA
Reza Khorsan, M.D. is a nephrology physician with a practice address in Santa Monica, California, and NPI 1356536585, issued on Sep 11, 2007. Check the license (California A101659, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Reza Khorsan
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A101659 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1245 16TH St Ste 309, Santa Monica, CA 90404
- Phone
- (310) 319-4371
- Enumerated
- Sep 11, 2007
- Record last updated
- Sep 12, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (310) 319-4141
- Medicaid ID
- 1356536585 CA
- Medicare enrollment
- Enrolled (PECOS I20101201000445); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2006
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 1245 16TH St Ste 309
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brad Fiske, MDInternal Medicine Physician1821791641
- Jorge Flautero Arcos, MDFamily Medicine Physician1366070013
- Gavin Ho, MDInternal Medicine Physician1760942841
- Alexander Kaplan, MDInternal Medicine Physician1295485761
Verify Reza Khorsan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A101659Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average nephrology physician in 2024
1,254 Medicare Part D claims for 169 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Calcitriol93 claims
- Sevelamer Carbonate80 claims
- Amlodipine Besylate79 claims
- Furosemide74 claims
- Farxiga69 claims
- Jardiance51 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: $119.41
1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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
- The Regents OF The University OF CaliforniaLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Reza Khorsan among 1,468 nephrology physician records in California
Reza Khorsan, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% 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 52% of them.
- NPI issued2007 · 52% of these records are older, 35% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2006 · median 2001 among the 1,128 with a school on file
- Record last updated2011 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in Santa Monica → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Ramon Durazo, MDSanta Monica, CA 904041346701802
- Earl Gordon, M.D.Santa Monica, CA 904041053534925
- Morris Grabie, MDSanta Monica, CA 904041659399681
- Frederick Karubian, MDSanta Monica, CA 904041275613655
- Ying Hui Luu, M.D.Santa Monica, CA 904041922486893
- Connie Rhee, M.D.Santa Monica, CA 904041083835276
- Fawad Zafar-Khan, MDSanta Monica, CA 904041699827873
- Nasimeh Yazdani, M.D.Santa Monica, CA 904031154376580
Common questions
What is Reza Khorsan, M.D.'s NPI number?
Reza Khorsan, M.D.'s National Provider Identifier (NPI) is 1356536585, issued on Sep 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Reza Khorsan, M.D. located?
The NPPES record lists a practice address at 1245 16TH St Ste 309, Santa Monica, CA, 90404. Phone: (310) 319-4371. Providers update this record themselves, so call before visiting.
How can I verify Reza Khorsan, M.D.'s license?
NPPES lists California license number A101659, 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 Reza Khorsan, M.D. prescribe under Medicare Part D?
In 2024, Reza Khorsan, M.D. had 1,254 Medicare Part D claims for 169 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.