NPPES file of Aug 9, 2026

Tamsin A. Sarich Youmans, RN, ARNP

Family Nurse Practitioner · Seattle, WA

Tamsin A. Sarich Youmans, RN, ARNP is a family nurse practitioner with a practice address in Seattle, Washington, and NPI 1972768398, issued on Jul 24, 2008. Check the license (Washington AP30008042, 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
1972768398
Name
Tamsin A. Sarich Youmans
Credential
RN, ARNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP30008042 WA
Self-reported in NPPES; status is on the state search
Practice location
2101 E Yesler Way, Seattle, WA 98122
Phone
(206) 299-1900
Enumerated
Jul 24, 2008
Record last updated
Apr 2, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080811000659); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 2007
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 2101 E Yesler Way

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

  1. Kristin Anderson, M.D.Family Medicine Physician1255501292
  2. Nassim Assefi, MDInternal Medicine Physician1558441055
  3. Zadock Avery, MPH, MSN, APRN, WHNPWomen's Health Nurse Practitioner1124446091
  4. Paul Barry, BA, MSWMental Health Counselor1437519246
  5. Mikala Bird-Davis, RNDiabetes Educator Registered Nurse1427893858
  6. Bernadette Creaven, RNCommunity Health Registered Nurse1902568231

Verify Tamsin A. Sarich Youmans 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 AP30008042
    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

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96% fewer Medicare Part D claims than the average family nurse practitioner in 2024

49 Medicare Part D claims for 21 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Tamsin Sarich Youmans49
  2. Specialty average1,305

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 one group practice

  1. Seattle Roots Community HealthSeattle, WA

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

Tamsin A. Sarich Youmans among 3,781 family nurse practitioner records in Washington

Tamsin A. Sarich Youmans, RN, 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 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 updated2019 · 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).

663 family nurse practitioner records list a practice address in Seattle

They are 663 of the 41,956 NPPES records with a practice address in Seattle, and 3,781 family nurse practitioner records in Washington.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Sally Alfred, FNP-BCSeattle, WA 981221750585097
  2. Ashley Bruggeman, ARNPSeattle, WA 981221093814543
  3. Emily Butler, ARNPSeattle, WA 981221972726289
  4. Janet Crosman, ARNPSeattle, WA 981221326238130
  5. Kristi Farrell, ARNPSeattle, WA 981221629271234
  6. Michael Huggins, APRN FNP-BC; GNP-BCSeattle, WA 981221952308520
  7. Peggy Jesse, ARNPSeattle, WA 981221790811057
  8. Rosana Klajner, ARNPSeattle, WA 981221679642045

Common questions

What is Tamsin A. Sarich Youmans, RN, ARNP's NPI number?

Tamsin A. Sarich Youmans, RN, ARNP's National Provider Identifier (NPI) is 1972768398, issued on Jul 24, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Tamsin A. Sarich Youmans, RN, ARNP located?

The NPPES record lists a practice address at 2101 E Yesler Way, Seattle, WA, 98122. Phone: (206) 299-1900. Providers update this record themselves, so call before visiting.

How can I verify Tamsin A. Sarich Youmans, RN, ARNP's license?

NPPES lists Washington license number AP30008042, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Tamsin A. Sarich Youmans, RN, ARNP prescribe under Medicare Part D?

In 2024, Tamsin A. Sarich Youmans, RN, ARNP had 49 Medicare Part D claims for 21 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.