NPPES file of Aug 9, 2026

Wanjiru Landers

Physician Assistant · Owasso, OK

Wanjiru Landers is a physician assistant with a practice address in Owasso, Oklahoma, and NPI 1881160356, issued on Oct 22, 2018. Check the license (Oklahoma 5014, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881160356
Name
Wanjiru Landers
Primary taxonomy
Physician Assistant 363A00000X
License number
5014 OK
Self-reported in NPPES; status is on the state search
Practice location
8418 N 123RD East Ave, Owasso, OK 74055
Phone
(918) 858-4353
Enumerated
Oct 22, 2018
Record last updated
Apr 6, 2026
Fax
(866) 246-2942
Medicare enrollment
Enrolled (PECOS I20230922003718); accepts Medicare assignment
Medical or professional school
At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa, 2019
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 8418 N 123RD East Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kelsey HaynesPhysician Assistant1619631801
  2. Curtis Martinez, PAPhysician Assistant1073836235
  3. Ilona Willyard, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1154687697

Verify Wanjiru Landers in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
    Search for license 5014
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Oklahoma license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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6.8 times the Medicare Part D claims of the average physician assistant in 2024

5,681 Medicare Part D claims for 296 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Wanjiru Landers5,681
  2. Specialty average830

Most prescribed

  1. Trazodone Hcl396 claims
  2. Buspirone Hcl366 claims
  3. Aripiprazole283 claims
  4. Lamotrigine279 claims
  5. Mirtazapine263 claims
  6. Quetiapine Fumarate262 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: $349.92

12 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Wanjiru Landers$349.92
  2. Specialty average$841.65

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

  1. Grand Lake Mental Health Center, Inc.Miami, OK

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

15 physician assistant records list a practice address in Owasso

They are 15 of the 788 NPPES records with a practice address in Owasso, and 1,870 physician assistant records in Oklahoma.

Other physician assistant records in Oklahoma

  1. David Abbott, PAOklahoma City, OK1881621241
  2. Teresa AberleOklahoma City, OK1588963953
  3. Sabrina AbrahamEdmond, OK1548980048
  4. Raoul Acha, PAShawnee, OK1902513682
  5. Nikki AcuffTulsa, OK1295390979
  6. Jennifer Acuna, PA-CTulsa, OK1306981071
  7. Britney Adair, PAStillwater, OK1578347654
  8. Parnell Adams, PA-CPonca City, OK1801810783
  9. Rebekah Adams, PAOklahoma City, OK1851005508
  10. Courtney Adler, PA-COklahoma City, OK1083536411

Common questions

What is Wanjiru Landers's NPI number?

Wanjiru Landers's National Provider Identifier (NPI) is 1881160356, issued on Oct 22, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Wanjiru Landers located?

The NPPES record lists a practice address at 8418 N 123RD East Ave, Owasso, OK, 74055. Phone: (918) 858-4353. Providers update this record themselves, so call before visiting.

How can I verify Wanjiru Landers's license?

NPPES lists Oklahoma license number 5014, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.

How much does Wanjiru Landers prescribe under Medicare Part D?

In 2024, Wanjiru Landers had 5,681 Medicare Part D claims for 296 beneficiaries; the average among physician assistant prescribers was 830. 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.