NPPES file of Aug 9, 2026

Rachel Lynn Maas, ARNP

Nurse Practitioner · Kirkland, WA

Rachel Lynn Maas, ARNP is a nurse practitioner with a practice address in Kirkland, Washington, and NPI 1891990958, issued on Jun 19, 2007. Check the license (Washington AP30007735, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891990958
Name
Rachel Lynn Maas
Credential
ARNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
AP30007735 WA
Self-reported in NPPES; status is on the state search
Practice location
12333 130TH Lane, Kirkland, WA 98034
Phone
(425) 899-0555
Enumerated
Jun 19, 2007
Record last updated
Jan 10, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(425) 899-1360
Medicaid ID
9653304 WA
Medicare enrollment
Enrolled (PECOS I20071011000133); 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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Verify Rachel Lynn Maas 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 AP30007735
    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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32% fewer Medicare Part D claims than the average nurse practitioner in 2024

752 Medicare Part D claims for 238 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Rachel Maas752
  2. Specialty average1,109

Most prescribed

  1. Metoprolol Succinate109 claims
  2. Eliquis80 claims
  3. Amlodipine Besylate49 claims
  4. Clopidogrel44 claims
  5. Lisinopril40 claims
  6. Atorvastatin Calcium36 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.

The MIPS final score for 2023 (Medicare payment program): 96.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score97.2
  2. Costout of 100 · 30%83.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. King County Public Hospital District NO 2Monroe, WA

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

Nurse Practitioner providers in Washington

There are 2,308 nurse practitioner records in Washington.

Other nurse practitioner records in Washington

  1. Arthuro AbbidoChelan Falls, WA1396412888
  2. Saada AbdelaSeattle, WA1881474716
  3. Glenda Abercrombie, ARNP, FNP-CYakima, WA1114001369
  4. Hemlal Acharya, ARNP PHMNP-BC, MSAuburn, WA1659146231
  5. Marja Adair, ARNPRichland, WA1659818318
  6. Nancy Adam, A.R.N.P.Poulsbo, WA1790835684
  7. James Adams, NPSpokane, WA1245828227
  8. Jessica Adams, ARNPBattle Ground, WA1316332463
  9. Pramoj Adhikari, DNP, RN, FNP - ( C).Everett, WA1396315446
  10. Girma AdmasuSpokane Valley, WA1568023547

Common questions

What is Rachel Lynn Maas, ARNP's NPI number?

Rachel Lynn Maas, ARNP's National Provider Identifier (NPI) is 1891990958, issued on Jun 19, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Rachel Lynn Maas, ARNP located?

The NPPES record lists a practice address at 12333 130TH Lane, Kirkland, WA, 98034. Phone: (425) 899-0555. Providers update this record themselves, so call before visiting.

How can I verify Rachel Lynn Maas, ARNP's license?

NPPES lists Washington license number AP30007735, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Rachel Lynn Maas, ARNP prescribe under Medicare Part D?

In 2024, Rachel Lynn Maas, ARNP had 752 Medicare Part D claims for 238 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

What is Rachel Lynn Maas, ARNP's MIPS final score?

The 2023 MIPS final score is 96.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.