Kamyar Kalantar-Zadeh, M.D.
Nephrology Physician · Orange, CA
Kamyar Kalantar-Zadeh, M.D. is a nephrology physician with a practice address in Orange, California, and NPI 1457314684, issued on Apr 10, 2006. Check the license (California A61298, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kamyar Kalantar-Zadeh
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A61298 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S, Orange, CA 92868
- Phone
- (714) 880-7812
- Enumerated
- Apr 10, 2006
- Record last updated
- Feb 21, 2023
- Medicaid ID
- 00A612980 CA
- Medicare enrollment
- Enrolled (PECOS I20110202000479); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 101 The City Dr S
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Abad, PAPhysician Assistant1477158673
- Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
- Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
- Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
- Eric AbelloOtolaryngology Physician1922566215
- Brandon Abeyta, MDAnesthesiology Physician1841291804
Verify Kamyar Kalantar-Zadeh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A61298Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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: $3,028.20
2 payments; by number, the most common kind was food and beverage; the largest payer was Vifor Fresenius Medical Care Renal Pharma Ltd. 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
- Prohealth Partners, A Medical GroupTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kamyar Kalantar-Zadeh among 1,468 nephrology physician records in California
Kamyar Kalantar-Zadeh, 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1991 · median 2001 among the 1,128 with a school on file
- Record last updated2023 · 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 Orange → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Fawaz Al Ammary, M.D.Orange, CA 928681992918916
- Cyril Barton, MDOrange, CA 928681588744668
- Jula Inrig, MDOrange, CA 928681740393743
- Amer Jabara, M.D.Orange, CA 928681760475701
- Anna Jin, M.D.Orange, CA 928681285767475
- Charles Kaupke, MDOrange, CA 928681770542920
- Thu Le, M.D.Orange, CA 928681396846317
- Hamid Moradi, M.D.Orange, CA 928681063553428
Common questions
What is Kamyar Kalantar-Zadeh, M.D.'s NPI number?
Kamyar Kalantar-Zadeh, M.D.'s National Provider Identifier (NPI) is 1457314684, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kamyar Kalantar-Zadeh, M.D. located?
The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 880-7812. Providers update this record themselves, so call before visiting.
How can I verify Kamyar Kalantar-Zadeh, M.D.'s license?
NPPES lists California license number A61298, 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.
What is Kamyar Kalantar-Zadeh, M.D.'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.