NPPES file of Aug 9, 2026

Yee Leng Ong Lilienthal, NP-C

Family Nurse Practitioner · Omak, WA

Yee Leng Ong Lilienthal, NP-C is a family nurse practitioner with a practice address in Omak, Washington, and NPI 1417477274, issued on Jun 22, 2017. Check the license with the Washington 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
1417477274
Name
Yee Leng Ong Lilienthal
Credential
NP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
APRN9223738 FL
5009609 NC
201904904NP-PP OR
Self-reported in NPPES; status is on the state search
Practice location
617 Benton St, Omak, WA 98841
Phone
(509) 422-7416
Enumerated
Jun 22, 2017
Record last updated
Jul 22, 2026
Fax
(509) 422-7712
Medicare enrollment
Enrolled (PECOS I20250915000735); accepts Medicare assignment
Medical or professional school
University Of South Florida College Of Medicine, 2016
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 617 Benton St

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

  1. Ryan Buckner, PHARM.D.Pharmacist1073870044
  2. Jo Kiester, PHARM.D.Pharmacist1144882804
  3. Marva McMillan, MTTechnician/Technologist1790252815
  4. Emil Navarrete, PHARMDPharmacist1588907562
  5. Sohyun ParkPharmacist1952964579
  6. Deanne Ristau, RMATechnician1821620204

Verify Yee Leng Ong Lilienthal in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck 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 Washington 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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80% fewer Medicare Part D claims than the average family nurse practitioner in 2024

267 Medicare Part D claims for 82 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Yee Ong Lilienthal267
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium25 claims
  2. Losartan Potassium19 claims
  3. Trazodone Hcl15 claims
  4. Pantoprazole Sodium14 claims
  5. Amlodipine Besylate12 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

  1. Omak Tribal Health ClinicOmak, WA

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

9 family nurse practitioner records list a practice address in Omak

They are 9 of the 363 NPPES records with a practice address in Omak, and 3,781 family nurse practitioner records in Washington.

Other family nurse practitioner records in Washington

  1. Erin Aas, ARNPOak Harbor, WA1972566206
  2. Amma AbabioSunnyside, WA1952056541
  3. Kimberly Abbey, NPBellevue, WA1700909181
  4. Mary Abbott, ARNP, FNP-CTacoma, WA1285514539
  5. Nurto AbdullaSeattle, WA1215629035
  6. Teresa Abernathy, ARNPOlympia, WA1124454533
  7. Brenda Abraham, N.P.Bremerton, WA1497745558
  8. Heina Abraham, APRN, FNP-CTukwila, WA1770169682
  9. Alan Abrams, ARNPEverett, WA1639347438
  10. Kristen Abrams, ARNPLakewood, WA1841449170

Common questions

What is Yee Leng Ong Lilienthal, NP-C's NPI number?

Yee Leng Ong Lilienthal, NP-C's National Provider Identifier (NPI) is 1417477274, issued on Jun 22, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Yee Leng Ong Lilienthal, NP-C located?

The NPPES record lists a practice address at 617 Benton St, Omak, WA, 98841. Phone: (509) 422-7416. Providers update this record themselves, so call before visiting.

How can I verify Yee Leng Ong Lilienthal, NP-C's license?

Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Yee Leng Ong Lilienthal, NP-C prescribe under Medicare Part D?

In 2024, Yee Leng Ong Lilienthal, NP-C had 267 Medicare Part D claims for 82 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.