Roya Hormozdiaran, MD,
Internal Medicine Physician · Irvine, CA
Roya Hormozdiaran, MD, is an internal medicine physician with a practice address in Irvine, California, and NPI 1427245349, issued on Sep 25, 2007. Check the license (California A96931, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Roya Hormozdiaran
- Credential
- MD,
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A96931 CA
Self-reported in NPPES; status is on the state search - Practice location
- 62 Corporate Park Ste 130, Irvine, CA 92606
- Phone
- (949) 735-2155
- Enumerated
- Sep 25, 2007
- Record last updated
- Nov 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20080918000598); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 62 Corporate Park Ste 130
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tae Oh, LACAcupuncturist1487929329
Verify Roya Hormozdiaran in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96931Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% more Medicare Part D claims than the average internal medicine physician in 2024
4,062 Medicare Part D claims for 384 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 107 claims were for opioids.
Most prescribed
- Atorvastatin Calcium297 claims
- Rosuvastatin Calcium234 claims
- Levothyroxine Sodium219 claims
- Losartan Potassium181 claims
- Amlodipine Besylate136 claims
- Atenolol88 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.
Roya Hormozdiaran among 17,696 internal medicine physician records in California
Roya Hormozdiaran, MD, is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2008 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
155 internal medicine physician records list a practice address in Irvine
They are 155 of the 7,778 NPPES records with a practice address in Irvine, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Irvine → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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Common questions
What is Roya Hormozdiaran, MD,'s NPI number?
Roya Hormozdiaran, MD,'s National Provider Identifier (NPI) is 1427245349, issued on Sep 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Roya Hormozdiaran, MD, located?
The NPPES record lists a practice address at 62 Corporate Park Ste 130, Irvine, CA, 92606. Phone: (949) 735-2155. Providers update this record themselves, so call before visiting.
How can I verify Roya Hormozdiaran, MD,'s license?
NPPES lists California license number A96931, 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 Roya Hormozdiaran, MD, prescribe under Medicare Part D?
In 2024, Roya Hormozdiaran, MD, had 4,062 Medicare Part D claims for 384 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.