NPPES file of Aug 9, 2026

Merinda Karn-Sterner

Physician Assistant · Portland, OR

Merinda Karn-Sterner is a physician assistant with a practice address in Portland, Oregon, and NPI 1992102917, issued on Nov 20, 2014. Check the license (Oregon PA170690, 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
1992102917
Name
Merinda Karn-Sterner
Primary taxonomy
Physician Assistant 363A00000X
License number
PA170690 OR
Self-reported in NPPES; status is on the state search
Practice location
8332 SE 13TH Ave, Portland, OR 97202
Phone
(503) 595-9300
Enumerated
Nov 20, 2014
Record last updated
Apr 1, 2024
Medicare enrollment
Enrolled (PECOS I20161029000399); accepts Medicare assignment
Medical or professional school
University Of Utah School Of Medicine, 2014
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 8332 SE 13TH Ave

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

  1. Olivia Bagot, MDPediatrics Physician1740744770
  2. Austin Karp-EvansMarriage & Family Therapist1255745089
  3. Amanda Krbec, FNPFamily Nurse Practitioner1518902337
  4. Brittany Petering, MDPediatrics Physician1497044010
  5. Rachel Rittenhouse, DNP, ARNP, CPNP-PCPediatric Nurse Practitioner1881115681
  6. Tara Schwab, M.D.Pediatrics Physician1851466445

Verify Merinda Karn-Sterner 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 PA170690
    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

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45% fewer Medicare Part D claims than the average physician assistant in 2024

456 Medicare Part D claims for 152 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 41 claims were for opioids.

  1. Merinda Karn-Sterner456
  2. Specialty average830

Most prescribed

  1. Losartan Potassium20 claims
  2. Hydrocodone-Acetaminophen19 claims
  3. Albuterol Sulfate Hfa17 claims
  4. Gabapentin16 claims
  5. Atorvastatin Calcium15 claims
  6. Omeprazole13 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 one group practice

  1. Sellwood Medical Clinic PCPortland, OR

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

Merinda Karn-Sterner among 2,094 physician assistant records in Oregon

Merinda Karn-Sterner is one of 2,094 physician assistant records with a practice address in Oregon. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 40% of them.

  • NPI issued2014 · 40% of these records are older, 56% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2014 · median 2017 among the 1,552 with a school on file
  • Record last updated2024 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Physician Assistant providers in Oregon

There are 2,094 physician assistant records in Oregon.

The 8 physician assistant records with the nearest ZIP codes

  1. Amie BarnardPortland, OR 972021184471062
  2. John Fong, PAPortland, OR 972021013929959
  3. Jacob McHugh, PA-CPortland, OR 972021811679418
  4. Marie Payment, PA-CPortland, OR 972021104508373
  5. Allison Rott, PACPortland, OR 972021285056291
  6. Andrzej Stadnik, PAPortland, OR 972021801647029
  7. Natalie Thoma, PA-CPortland, OR 972021740762400
  8. Thomas YacoePortland, OR 972021326868506

Common questions

What is Merinda Karn-Sterner's NPI number?

Merinda Karn-Sterner's National Provider Identifier (NPI) is 1992102917, issued on Nov 20, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Merinda Karn-Sterner located?

The NPPES record lists a practice address at 8332 SE 13TH Ave, Portland, OR, 97202. Phone: (503) 595-9300. Providers update this record themselves, so call before visiting.

How can I verify Merinda Karn-Sterner's license?

NPPES lists Oregon license number PA170690, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Merinda Karn-Sterner prescribe under Medicare Part D?

In 2024, Merinda Karn-Sterner had 456 Medicare Part D claims for 152 beneficiaries; the average among physician assistant prescribers was 830. 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.