Registry data as of Aug 27, 2026

Lidia Wiersum

Gerontology Nurse Practitioner · Issaquah, WA

Lidia Wiersum is a gerontology nurse practitioner with a practice address in Issaquah, Washington, and NPI 1558605071, issued on Nov 21, 2012. Check the license (Washington AP60321256, 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1558605071
Name
Lidia Wiersum
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
AP60321256 WA
Self-reported in NPPES; status is on the state search
Practice location
2445 270TH Ave SE, Issaquah, WA 98029
Phone
(262) 748-5588
Enumerated
Nov 21, 2012
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Lidia Wiersum 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 AP60321256
    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.

39% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

828 Medicare Part D claims for 328 beneficiaries, against an average of 1,350 among the 5,732 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Lidia Wiersum828
  2. Specialty average1,350

Most prescribed

  1. Atorvastatin Calcium163 claims
  2. Losartan Potassium73 claims
  3. Lisinopril60 claims
  4. Metformin Hcl Er47 claims
  5. Rosuvastatin Calcium40 claims
  6. Metformin Hcl38 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.

3 hospital and facility affiliations

  1. Select Outpatient Services IncGlenview, IL
  2. Select Rehabilitation, LLCGlenview, IL
  3. Swedish Health ServicesSeattle, WA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Gerontology Nurse Practitioner providers in Washington

There are 164 gerontology nurse practitioner records in Washington.

Other gerontology nurse practitioner records in Washington

  1. Endrias Abera, DNP-AGNPSeattle, WA1275064107
  2. Diana Allen, APRNKingston, WA1225842602
  3. Christina Amendolare, AGPCNPCoupeville, WA1952963829
  4. Virginia Arnold, ARNPSeattle, WA1609350453
  5. Kamala ArumugamSeattle, WA1124994892
  6. Shaily Arya, ARNPIssaquah, WA1124364906
  7. Jolene Avalos, AGNP-CBellingham, WA1962390229
  8. Evelina Avetisova, AGPC-NPShoreline, WA1609657816
  9. Sydney Bair, ARNPSeattle, WA1568358224
  10. Deanna Barthel, AGNPBothell, WA1801291935

Common questions

What is Lidia Wiersum's NPI number?

Lidia Wiersum's National Provider Identifier (NPI) is 1558605071, issued on Nov 21, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Lidia Wiersum located?

The NPPES record lists a practice address at 2445 270TH Ave SE, Issaquah, WA, 98029. Phone: (262) 748-5588. Providers update this record themselves, so call before visiting.

How can I verify Lidia Wiersum's license?

NPPES lists Washington license number AP60321256, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Lidia Wiersum prescribe under Medicare Part D?

In 2024, Lidia Wiersum had 828 Medicare Part D claims for 328 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,350. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.