Karmin Renae Maher, NP
Nurse Practitioner · Ontario, OR
Karmin Renae Maher, NP is a nurse practitioner with a practice address in Ontario, Oregon, and NPI 1346767563, issued on Aug 28, 2017. Check the license (Oregon 10031857, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karmin Renae Maher
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 10031857 OR
200242161RN OR
TEMP65149 ID
Self-reported in NPPES; status is on the state search - Practice location
- 1050 SW 3RD Ave Ste 1800, Ontario, OR 97914
- Phone
- (208) 302-0000
- Enumerated
- Aug 28, 2017
- Record last updated
- May 7, 2026
- Fax
- (208) 302-0000
- Medicare enrollment
- Enrolled (PECOS I20241122000875); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 599 in Oregon → Look up another NPI →
Verify Karmin Renae Maher in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 10031857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average nurse practitioner in 2024
1,476 Medicare Part D claims for 376 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Metoprolol Succinate158 claims
- Atorvastatin Calcium137 claims
- Eliquis112 claims
- Metoprolol Tartrate100 claims
- Amlodipine Besylate78 claims
- Losartan Potassium71 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: $120.84
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 38,884 providers of this specialty with any payment received $791.64 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 3 group practices
- Saint Alphonsus Medical Center Baker City IncBaker City, OR
- Saint Alphonsus Medical Center- Ontario IncOntario, OR
- Saint Alphonsus Regional Medical Center IncBaker City, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karmin Renae Maher among 599 nurse practitioner records in Oregon
Karmin Renae Maher, NP is one of 599 nurse practitioner records with a practice address in Oregon. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 58% of them.
- NPI issued2017 · 58% of these records are older, 37% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2023 · median 2017 among the 333 with a school on file
- Record last updated2026 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in Oregon
There are 599 nurse practitioner records in Oregon.
All 599 in Oregon → Every provider in Ontario → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Micah Wilson, NPOntario, OR 979141760779904
- Heather Brock, ARNPLa Grande, OR 978501700939683
- Lauren Vollinger, NP-CLa Grande, OR 978501255803375
- Scott Widener, FNP-CLa Grande, OR 978501073060034
- Kristin Wilson, NP-CLa Grande, OR 978501851747596
- Vivienne Evans, A.R.N.P.Hermiston, OR 978381568492486
- Linda Gruenwald, FNPHermiston, OR 978381306809009
- Michelle McIntyreHermiston, OR 978381013337211
Common questions
What is Karmin Renae Maher, NP's NPI number?
Karmin Renae Maher, NP's National Provider Identifier (NPI) is 1346767563, issued on Aug 28, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Karmin Renae Maher, NP located?
The NPPES record lists a practice address at 1050 SW 3RD Ave Ste 1800, Ontario, OR, 97914. Phone: (208) 302-0000. Providers update this record themselves, so call before visiting.
How can I verify Karmin Renae Maher, NP's license?
NPPES lists Oregon license number 10031857, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Karmin Renae Maher, NP prescribe under Medicare Part D?
In 2024, Karmin Renae Maher, NP had 1,476 Medicare Part D claims for 376 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.