NPPES file of Aug 9, 2026

Karen A. Kirwan, FNP-C

Family Nurse Practitioner · Forest Grove, OR

Karen A. Kirwan, FNP-C is a family nurse practitioner with a practice address in Forest Grove, Oregon, and NPI 1588668933, issued on Jun 13, 2005. Check the license (Oregon 091006149N1, as entered in NPPES) with the Oregon 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
1588668933
Name
Karen A. Kirwan
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
091006149N1 OR
Self-reported in NPPES; status is on the state search
Practice location
1909 Mountain View LN, Forest Grove, OR 97116
Phone
(503) 359-4773
Enumerated
Jun 13, 2005
Record last updated
Jul 12, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(503) 359-3809
Medicaid ID
027339 OR
Medicare enrollment
Enrolled (PECOS I20050509000405); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1909 Mountain View LN

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

  1. Timothy Gray, D.O.Family Medicine Physician1003810441
  2. Timothy Gray, D.O.Family Medicine Physician1699770057
  3. Elizabeth Hughes, PA-CMedical Physician Assistant1629479282
  4. Alison ShapiroFamily Nurse Practitioner1437537669
  5. Paul Sorenson, LCSWClinical Social Worker1659517894

Verify Karen A. Kirwan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 091006149N1
    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 Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5.7 times the Medicare Part D claims of the average family nurse practitioner in 2024

7,432 Medicare Part D claims for 577 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 106 claims were for opioids.

  1. Karen Kirwan7,432
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium602 claims
  2. Levothyroxine Sodium357 claims
  3. Lisinopril312 claims
  4. Gabapentin224 claims
  5. Losartan Potassium220 claims
  6. Omeprazole218 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: $125.02

7 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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.

  1. Karen Kirwan$125.02
  2. Specialty average$650.95

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

  1. Timothy J Gray DO LLCForest Grove, OR

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

Karen A. Kirwan among 2,384 family nurse practitioner records in Oregon

Karen A. Kirwan, FNP-C is one of 2,384 family nurse practitioner records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 96% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1989 · median 2017 among the 1,390 with a school on file
  • Record last updated2007 · 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

6 family nurse practitioner records list a practice address in Forest Grove

They are 6 of the 418 NPPES records with a practice address in Forest Grove, and 2,384 family nurse practitioner records in Oregon.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Rhonda McMullin, ARNP, FNP-CForest Grove, OR 971161700391612
  2. Melinda Sanfilippo, BSN, MSN, FNP-C.Forest Grove, OR 971161215053277
  3. Alison ShapiroForest Grove, OR 971161437537669
  4. Janice Tsuchida, FNPForest Grove, OR 971161124188198
  5. Michaela Westover, FNP-BCForest Grove, OR 971161649987413
  6. Jessica Bledsoe, FNPCornelius, OR 971131366328122
  7. Talia Buchsbaum, NPCornelius, OR 971131326479783
  8. Sharon Duggan, MSN, FNPCornelius, OR 971131467789453

Common questions

What is Karen A. Kirwan, FNP-C's NPI number?

Karen A. Kirwan, FNP-C's National Provider Identifier (NPI) is 1588668933, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Karen A. Kirwan, FNP-C located?

The NPPES record lists a practice address at 1909 Mountain View LN, Forest Grove, OR, 97116. Phone: (503) 359-4773. Providers update this record themselves, so call before visiting.

How can I verify Karen A. Kirwan, FNP-C's license?

NPPES lists Oregon license number 091006149N1, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Karen A. Kirwan, FNP-C prescribe under Medicare Part D?

In 2024, Karen A. Kirwan, FNP-C had 7,432 Medicare Part D claims for 577 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.