Olayinka Kenneth Warritay, M.D.
Family Medicine Physician · Westlake Village, CA
Olayinka Kenneth Warritay, M.D. is a family medicine physician with a practice address in Westlake Village, California, and NPI 1447661996, issued on May 17, 2014. Check the license (California A149212, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Olayinka Kenneth Warritay
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A149212 CA
149212 CA
4301105139 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3967 E Thousand Oaks Blvd, Westlake Village, CA 91362
- Phone
- (972) 745-7500
- Enumerated
- May 17, 2014
- Record last updated
- Nov 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (972) 956-8887
- Medicare enrollment
- Enrolled (PECOS I20170809000859); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Olayinka Kenneth Warritay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A149212Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average family medicine physician in 2024
1,169 Medicare Part D claims for 504 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 46 claims were for opioids.
Most prescribed
- Meloxicam89 claims
- Ipratropium Bromide77 claims
- Prednisone77 claims
- Doxycycline Monohydrate61 claims
- Albuterol Sulfate Hfa55 claims
- Gabapentin53 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupWoodland Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Olayinka Kenneth Warritay among 17,133 family medicine physician records in California
Olayinka Kenneth Warritay, 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 2014, is newer than 71% of them.
- NPI issued2014 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2009 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 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).
19 family medicine physician records list a practice address in Westlake Village
They are 19 of the 1,397 NPPES records with a practice address in Westlake Village, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Westlake Village → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ali Chahine, MDWestlake Village, CA 913621013545961
- Jeffrey Klein, MDThousand Oaks, CA 913621972508646
- Davin Lundquist, M.D.Westlake Village, CA 913621780642306
- Pooya Mobasseri, D.O.Westlake Village, CA 913621356670657
- Alireza Raboubi, M.D.Westlake Village, CA 913621821201013
- Chuie Yuen, M.D.Westlake Village, CA 913621447516471
- Kosha Doshi, DOThousand Oaks, CA 913611588124903
- Alicia Guevara, M.D.Thousand Oaks, CA 913611629295217
Common questions
What is Olayinka Kenneth Warritay, M.D.'s NPI number?
Olayinka Kenneth Warritay, M.D.'s National Provider Identifier (NPI) is 1447661996, issued on May 17, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Olayinka Kenneth Warritay, M.D. located?
The NPPES record lists a practice address at 3967 E Thousand Oaks Blvd, Westlake Village, CA, 91362. Phone: (972) 745-7500. Providers update this record themselves, so call before visiting.
How can I verify Olayinka Kenneth Warritay, M.D.'s license?
NPPES lists California license number A149212, 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 Olayinka Kenneth Warritay, M.D. prescribe under Medicare Part D?
In 2024, Olayinka Kenneth Warritay, M.D. had 1,169 Medicare Part D claims for 504 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.