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DR. OLAYINKA KENNETH WARRITAY M.D.
NPI 1447661996
Family Medicine in Westlake Village, CA

Active since May 17, 2014PECOS EnrolledAccepts Medicare Assignment
3967 E THOUSAND OAKS BLVD, WESTLAKE VILLAGE, CA 91362(972) 745-7500(972) 956-8887 Get Directions Write a Review

NPPES record last updated: November 17, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 17, 2021, Dec 21, 2017, Jan 4, 2017 (3 updates tracked since 2017).

About Dr. Olayinka Kenneth Warritay M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. OLAYINKA KENNETH WARRITAY M.D. (NPI 1447661996) is an individual family medicine provider in Westlake Village, California, licensed in California (A149212) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1447661996
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. OLAYINKA KENNETH WARRITAYCredential: M.D.
Location Address3967 E THOUSAND OAKS BLVDWestlake Village, CA 91362-3628
Mailing Address3967 E Thousand Oaks BlvdWestlake Village, CA 91362-3628 · (805) 309-0880 · Fax (805) 418-9887
Phone(972) 745-7500
Fax(972) 956-8887
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateMay 17, 2014
Last NPPES UpdateNovember 17, 20213 updates tracked since enumeration
NPPES CertifiedNovember 17, 2021
✔ NPI 1447661996 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in CA · A149212✔ Licensed in CA · 149212✔ Licensed in MI · 4301105139
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
3967 E THOUSAND OAKS BLVD, Westlake Village, CA 91362
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Olayinka Kenneth Warritay M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5597067454
PECOS Enrollment IDI20170809000859
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Olayinka Warritay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
13 mi
Health Maintenance Organization
5601 DE SOTO AVE
Woodland Hills, CA 91367
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1952333478 (818) 719-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91362 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Olayinka Warritay's NPI number?

The NPI number for Olayinka Warritay is 1447661996. It was assigned to this individual provider in the NPPES registry on May 17, 2014.

Where is Olayinka Warritay located?

Olayinka Warritay practices at 3967 E Thousand Oaks Blvd, Westlake Village, CA 91362. The listed phone number is (972) 745-7500.

What is Olayinka Warritay's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Olayinka Warritay enrolled in Medicare?

Yes. Olayinka Warritay is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Olayinka Warritay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Olayinka Warritay reassigns Medicare benefits to Southern California Permanente Medical Group (Woodland Hills, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Olayinka Warritay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Olayinka Warritay was last updated on November 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.