Karen Alina Johnson, ARNP
Family Nurse Practitioner · Seattle, WA
Karen Alina Johnson, ARNP is a family nurse practitioner with a practice address in Seattle, Washington, and NPI 1932187762, issued on Jan 3, 2006. Check the license (Washington AP30002214, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Alina Johnson
- Credential
- ARNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- AP30002214 WA
Self-reported in NPPES; status is on the state search - Practice location
- 500 19TH Ave E, Seattle, WA 98112
- Phone
- (206) 299-1600
- Enumerated
- Jan 3, 2006
- Record last updated
- Sep 17, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (206) 299-1608
- Medicare enrollment
- Enrolled (PECOS I20111128000805); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,781 in Washington → Look up another NPI →
Also registered at 500 19TH Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bessie Chi, PHARMDPharmacist1831645993
Verify Karen Alina Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP30002214Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% more Medicare Part D claims than the average family nurse practitioner in 2024
2,102 Medicare Part D claims for 132 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Atorvastatin Calcium169 claims
- Biktarvy93 claims
- Levothyroxine Sodium87 claims
- Amlodipine Besylate73 claims
- Gabapentin61 claims
- Tamsulosin Hcl61 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.
Industry payments in 2024: $346.44
6 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Seattle Roots Community HealthSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Alina Johnson among 3,781 family nurse practitioner records in Washington
Karen Alina Johnson, 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
- Graduated1990 · median 2018 among the 2,116 with a school on file
- Record last updated2010 · 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.
All 3,781 in Washington → Every provider in Seattle → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Yansu ChenSeattle, WA 981121497093140
- Janna CuneoSeattle, WA 981121528451192
- Mary Davis, NPSeattle, WA 981121780678292
- Mary Galvin, A.R.N.P.Seattle, WA 981121730302050
- Jordana Grussgott, ARNPSeattle, WA 981121861423931
- Katherine Hester, ARNPSeattle, WA 981121942280995
- Jean Hong, ARNPSeattle, WA 981121922027523
- Cassandra Krumpelmann, ARNP-BC FAMILYSeattle, WA 981121962770966
Common questions
What is Karen Alina Johnson, ARNP's NPI number?
Karen Alina Johnson, ARNP's National Provider Identifier (NPI) is 1932187762, issued on Jan 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Alina Johnson, ARNP located?
The NPPES record lists a practice address at 500 19TH Ave E, Seattle, WA, 98112. Phone: (206) 299-1600. Providers update this record themselves, so call before visiting.
How can I verify Karen Alina Johnson, ARNP's license?
NPPES lists Washington license number AP30002214, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Alina Johnson, ARNP prescribe under Medicare Part D?
In 2024, Karen Alina Johnson, ARNP had 2,102 Medicare Part D claims for 132 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.