NPPES file of Aug 9, 2026

Bonnie A. Lash, FNP

Family Nurse Practitioner · Bainbridge Island, WA

Bonnie A. Lash, FNP is a family nurse practitioner with a practice address in Bainbridge Island, Washington, and NPI 1235307737, issued on Feb 19, 2008. Check the license (Washington AP60462750, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235307737
Name
Bonnie A. Lash
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
AP60462750 WA
1277 AK
Self-reported in NPPES; status is on the state search
Practice location
1344 Wintergreen Lane, Bainbridge Island, WA 98110
Phone
(206) 201-0488
Enumerated
Feb 19, 2008
Record last updated
Mar 27, 2024
Fax
(206) 201-0490
Medicaid IDs
00903700 NY
2082727 WA
Medicare enrollment
Enrolled (PECOS I20190213000276); may accept 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 1344 Wintergreen Lane

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

  1. Daniel Sheffield, DOEmergency Medicine Physician1215290515

Verify Bonnie A. Lash 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 AP60462750
    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
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69% fewer Medicare Part D claims than the average family nurse practitioner in 2024

401 Medicare Part D claims for 294 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Bonnie Lash401
  2. Specialty average1,305

Most prescribed

  1. Amoxicillin-Clavulanate Potass48 claims
  2. Albuterol Sulfate Hfa41 claims
  3. Doxycycline Monohydrate41 claims
  4. Nitrofurantoin Mono-Macro35 claims
  5. Cephalexin32 claims
  6. Sulfamethoxazole-Trimethoprim23 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.

Bonnie A. Lash among 3,781 family nurse practitioner records in Washington

Bonnie A. Lash, FNP is one of 3,781 family nurse practitioner records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 22% of them.

  • NPI issued2008 · 22% of these records are older, 75% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2007 · median 2018 among the 2,116 with a school on file
  • Record last updated2024 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 family nurse practitioner records list a practice address in Bainbridge Island

They are 8 of the 482 NPPES records with a practice address in Bainbridge Island, and 3,781 family nurse practitioner records in Washington.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Alexis Carlson, APRNBainbridge Island, WA 981101003658543
  2. Erica Hickson, ARNPBainbridge Island, WA 981101649680695
  3. Katherine Newberg, ARNPBainbridge Island, WA 981101174282503
  4. Linda Pedersen, MNARNPBainbridge Island, WA 981101164572590
  5. Melanie UnderwoodBainbridge Island, WA 981101023733326
  6. Sandra Wieland, PHD, ARNPBainbridge Island, WA 981101497149546
  7. Jennifer WishinskiBainbridge Island, WA 981101396252326
  8. Amelia Beckstead, ARNPSeattle, WA 981091487369641

Common questions

What is Bonnie A. Lash, FNP's NPI number?

Bonnie A. Lash, FNP's National Provider Identifier (NPI) is 1235307737, issued on Feb 19, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Bonnie A. Lash, FNP located?

The NPPES record lists a practice address at 1344 Wintergreen Lane, Bainbridge Island, WA, 98110. Phone: (206) 201-0488. Providers update this record themselves, so call before visiting.

How can I verify Bonnie A. Lash, FNP's license?

NPPES lists Washington license number AP60462750, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Bonnie A. Lash, FNP prescribe under Medicare Part D?

In 2024, Bonnie A. Lash, FNP had 401 Medicare Part D claims for 294 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.