Margaret Lynn Larson, ARNP
Family Nurse Practitioner · Renton, WA
Margaret Lynn Larson, ARNP is a family nurse practitioner with a practice address in Renton, Washington, and NPI 1699788539, issued on Aug 14, 2006. Check the license (Washington AP30007129, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Lynn Larson
- Credential
- ARNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP30007129 WA
Self-reported in NPPES; status is on the state search - Practice location
- 64 Rainier Ave S, Renton, WA 98057
- Phone
- (888) 405-6396
- Enumerated
- Aug 14, 2006
- Record last updated
- Aug 18, 2025
- Fax
- (415) 252-7176
- Medicare enrollment
- Enrolled (PECOS I20070402000096); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,781 in Washington → Look up another NPI →
Also registered at 64 Rainier Ave S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret Lynn Larson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP30007129Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average family nurse practitioner in 2024
773 Medicare Part D claims for 363 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 45 claims were for opioids.
Most prescribed
- Amlodipine Besylate28 claims
- Atorvastatin Calcium23 claims
- Levothyroxine Sodium23 claims
- Azithromycin21 claims
- Hydrocodone-Acetaminophen19 claims
- Lisinopril19 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 2 group practices
- Iora Health Washington Physicians PCRenton, WA
- Multicare Health SystemAuburn, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Lynn Larson among 3,781 family nurse practitioner records in Washington
Margaret Lynn Larson, ARNP 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 84% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2004 · median 2018 among the 2,116 with a school on file
- Record last updated2025 · 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).
62 family nurse practitioner records list a practice address in Renton
They are 62 of the 3,147 NPPES records with a practice address in Renton, and 3,781 family nurse practitioner records in Washington.
All 3,781 in Washington → Every provider in Renton → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Sylvia Castro, ARNPRenton, WA 980571912297219
- Shanedra Davis, NPRenton, WA 980571477825099
- Risa Halford, ARNPRenton, WA 980571104136811
- Bradley Jellerichs, A.R.N.P.Renton, WA 980571841436417
- Christine Jennings, ARNP, FNP-BCRenton, WA 980571942721071
- Patricia Jergens, ARNPRenton, WA 980571891831590
- Elizabeth Kijima, ARNPRenton, WA 980571790055929
- Carolyne KiturRenton, WA 980571548793268
Common questions
What is Margaret Lynn Larson, ARNP's NPI number?
Margaret Lynn Larson, ARNP's National Provider Identifier (NPI) is 1699788539, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Lynn Larson, ARNP located?
The NPPES record lists a practice address at 64 Rainier Ave S, Renton, WA, 98057. Phone: (888) 405-6396. Providers update this record themselves, so call before visiting.
How can I verify Margaret Lynn Larson, ARNP's license?
NPPES lists Washington license number AP30007129, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret Lynn Larson, ARNP prescribe under Medicare Part D?
In 2024, Margaret Lynn Larson, ARNP had 773 Medicare Part D claims for 363 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.