NPPES file of Aug 9, 2026

Timothy Landan Day

Psychologist · Wenatchee, WA

Timothy Landan Day is a psychologist with a practice address in Wenatchee, Washington, and NPI 1598014102, issued on Aug 29, 2012. Check the license (Washington PY60775432, as entered in NPPES) 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598014102
Name
Timothy Landan Day
Primary taxonomy
Psychologist 103T00000X
License number
PY60775432 WA
Self-reported in NPPES; status is on the state search
Practice location
820 N Chelan Ave, Wenatchee, WA 98801
Phone
(509) 663-8711
Enumerated
Aug 29, 2012
Record last updated
Jun 15, 2022
Medicaid ID
1598014102 WA
Medicare enrollment
Enrolled (PECOS I20170920002789); accepts Medicare assignment
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 820 N Chelan Ave

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

  1. Laurel Aaberg, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1245620947
  2. Amr Abd-Al-Ghaffar, MDMedical Oncology Physician1114904323
  3. Makena Ackerman, ARNPFamily Nurse Practitioner1598500936
  4. Steven Aguilu, M.D.Family Medicine Physician1851397830
  5. Amber Aiken, RNCase Manager/Care Coordinator1396498234
  6. Benjamin Albertson, MDSports Medicine (Orthopaedic Surgery) Physician1316471816

Verify Timothy Landan Day in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license PY60775432
    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 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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Bills Medicare through one group practice

  1. Central Washington Health Services AssociationWenatchee, WA

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

Timothy Landan Day among 1,089 psychologist records in Washington

Timothy Landan Day is one of 1,089 psychologist records with a practice address in Washington. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 58% of them.

  • NPI issued2012 · 58% of these records are older, 38% newer
  • In a Medicare fileYes · 11% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2016 · median 2009 among the 226 with a school on file
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychologist providers in Washington

There are 1,089 psychologist records in Washington.

The 8 psychologist records with the nearest ZIP codes

  1. Jonathan CurtisWenatchee, WA 988011710217955
  2. Erin HarperWenatchee, WA 988011457891889
  3. Christine Heller, MAWenatchee, WA 988011548889363
  4. Karen Jones, PH.D.Wenatchee, WA 988011891084919
  5. Alyssa MayerWenatchee, WA 988011043944838
  6. Joshua Ventura, PHDWenatchee, WA 988011700130739
  7. Cassandra Alpin, PHDCashmere, WA 988151699213264
  8. Maxwell Moholy, PHDLeavenworth, WA 988261063802023

Common questions

What is Timothy Landan Day's NPI number?

Timothy Landan Day's National Provider Identifier (NPI) is 1598014102, issued on Aug 29, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Timothy Landan Day located?

The NPPES record lists a practice address at 820 N Chelan Ave, Wenatchee, WA, 98801. Phone: (509) 663-8711. Providers update this record themselves, so call before visiting.

How can I verify Timothy Landan Day's license?

NPPES lists Washington license number PY60775432, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity 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.