John Karlin, ARNP
Nurse Practitioner · Klamath Falls, OR
John Karlin, ARNP is a nurse practitioner with a practice address in Klamath Falls, Oregon, and NPI 1225436876, issued on Dec 15, 2014. Check the license (Oregon 10026228, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Karlin
- Credential
- ARNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- 10026228 OR
OK74696 OK
Self-reported in NPPES; status is on the state search - Practice location
- 2865 Daggett Ave, Klamath Falls, OR 97601
- Phone
- (541) 274-6221
- Enumerated
- Dec 15, 2014
- Record last updated
- Dec 30, 2024
- Medicare enrollment
- Enrolled (PECOS I20150130001050); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 599 in Oregon → Look up another NPI →
Also registered at 2865 Daggett Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tahlia Aarstad, PHARMDPharmacist1972928117
- Monna Alwine, NURSE PRACTITICIONERAdult Health Nurse Practitioner1215415708
- Mychal Amos, PHARMDPharmacist1992878318
- Jessica Atchley, BSN, RNStudent in an Organized Health Care Education/Training Program1649127937
- Merri Barber, BSN, RN, IBCLCLactation Consultant (Registered Nurse)1073138814
- Susan Barnes, MDAnesthesiology Physician1235210881
Verify John Karlin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 10026228Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average nurse practitioner in 2024
378 Medicare Part D claims for 264 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Prednisone37 claims
- Amoxicillin-Clavulanate Potass35 claims
- Cephalexin30 claims
- Azithromycin23 claims
- Doxycycline Monohydrate20 claims
- Amoxicillin13 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 81 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $21.14
1 payment: food and beverage; the largest payer was Abbvie 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
- Clinton Hospital AuthorityClinton, OK
- Grande Ronde Hospital IncLa Grande, OR
- Ies ER Oklahoma LLCTulsa, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Karlin among 599 nurse practitioner records in Oregon
John Karlin, ARNP 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 2014, is newer than 47% of them.
- NPI issued2014 · 47% of these records are older, 49% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2024 · median 2017 among the 333 with a school on file
- Record last updated2024 · 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 Klamath Falls → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Sharon Heaton, F.N.P.Klamath Falls, OR 976011033273255
- Natalia Hidden, FNP-CKlamath Falls, OR 976011831640317
- Barbara Hunter, FNPKlamath Falls, OR 976011932694577
- Danielle LaytonKlamath Falls, OR 976011588274864
- Bobijo Staffler, FNPKlamath Falls, OR 976011962001586
- Patricia Stein, FNPKlamath Falls, OR 976011093233686
- Andrew Hughes, FNPChiloquin, OR 976241275533945
- Christina Hughes, FNPChiloquin, OR 976241639179310
Common questions
What is John Karlin, ARNP's NPI number?
John Karlin, ARNP's National Provider Identifier (NPI) is 1225436876, issued on Dec 15, 2014. An NPI identifies a provider in billing; it is not a license.
Where is John Karlin, ARNP located?
The NPPES record lists a practice address at 2865 Daggett Ave, Klamath Falls, OR, 97601. Phone: (541) 274-6221. Providers update this record themselves, so call before visiting.
How can I verify John Karlin, ARNP's license?
NPPES lists Oregon license number 10026228, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does John Karlin, ARNP prescribe under Medicare Part D?
In 2024, John Karlin, ARNP had 378 Medicare Part D claims for 264 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is John Karlin, ARNP's MIPS final score?
The 2023 MIPS final score is 81 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.