Irina Feldman, M.D.
Family Medicine Physician · Thousand Oaks, CA
Irina Feldman, M.D. is a family medicine physician with a practice address in Thousand Oaks, California, and NPI 1417919721, issued on Apr 3, 2006. Check the license (California A88266, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Irina Feldman
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A88266 CA
Self-reported in NPPES; status is on the state search - Practice location
- 375 Rolling Oaks Dr, Thousand Oaks, CA 91361
- Phone
- (805) 777-7676
- Enumerated
- Apr 3, 2006
- Record last updated
- Aug 15, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (805) 374-1323
- Medicare enrollment
- Enrolled (PECOS I20050212000082); may accept Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 375 Rolling Oaks Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Irina Feldman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A88266Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
450 Medicare Part D claims for 43 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Atorvastatin Calcium29 claims
- Escitalopram Oxalate23 claims
- Rosuvastatin Calcium22 claims
- Mounjaro18 claims
- Lisinopril17 claims
- Olmesartan Medoxomil17 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: $421.47
21 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Irina Feldman among 17,133 family medicine physician records in California
Irina Feldman, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1993 · median 2005 among the 10,652 with a school on file
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 family medicine physician records list a practice address in Thousand Oaks
They are 39 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Thousand Oaks → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Alicia Guevara, M.D.Thousand Oaks, CA 913611629295217
- David Gunn, MDWestlake Village, CA 913611215163035
- Bader Iqbal, M.D.Thousand Oaks, CA 913611346254364
- Chelsey Kahanowitch, D.O.Westlake Village, CA 913611750743530
- Razmig Krumian, D.O.Westlake Village, CA 913611720064462
- Darrick Lee, D.O.Westlake Village, CA 913611811424682
- Amy Lin, M.D.Westlake Village, CA 913611770511081
- Mike Oulashian, M.D.Thousand Oaks, CA 913611164694212
Common questions
What is Irina Feldman, M.D.'s NPI number?
Irina Feldman, M.D.'s National Provider Identifier (NPI) is 1417919721, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Irina Feldman, M.D. located?
The NPPES record lists a practice address at 375 Rolling Oaks Dr, Thousand Oaks, CA, 91361. Phone: (805) 777-7676. Providers update this record themselves, so call before visiting.
How can I verify Irina Feldman, M.D.'s license?
NPPES lists California license number A88266, 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 Irina Feldman, M.D. prescribe under Medicare Part D?
In 2024, Irina Feldman, M.D. had 450 Medicare Part D claims for 43 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.