Kent A. Karren, MD
Ophthalmology Physician · Eugene, OR
Kent A. Karren, MD is an ophthalmology physician with a practice address in Eugene, Oregon, and NPI 1942208160, issued on Jul 12, 2005. Check the license (Oregon MD 22688, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kent A. Karren
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- MD 22688 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1550 Oak St, Eugene, OR 97401
- Phone
- (541) 683-2020
- Enumerated
- Jul 12, 2005
- Record last updated
- Jun 11, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (541) 683-1509
- Medicaid ID
- 288291 OR
- Medicare enrollment
- Enrolled (PECOS I20240619001422); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1986
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 322 in Oregon → Look up another NPI →
Also registered at 1550 Oak St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lorraine Attalla, CRNACertified Registered Nurse Anesthetist1568459899
- Lee Azpiroz, O.D.Optometrist1184622300
- Robert Beardsley, M.D.Ophthalmology Physician1437302825
- Barbara Carroll, CRNACertified Registered Nurse Anesthetist1265429591
- Robert Champer, MD, PHDOphthalmology Physician1861490088
- Robert Davis, MDOphthalmology Physician1427056654
Verify Kent A. Karren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD 22688Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average ophthalmology physician in 2024
561 Medicare Part D claims for 253 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Latanoprost176 claims
- Timolol Maleate58 claims
- Neomycin-Polymyxin-Dexameth46 claims
- Vyzulta33 claims
- Prednisolone Acetate31 claims
- Brimonidine Tartrate27 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): 95.2 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: $751.27
22 payments; by number, the most common kind was food and beverage; the largest payer was Biotissue Holdings Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Sharon Richens MD Eye Physician And Surgeon PCMesquite, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kent A. Karren among 322 ophthalmology physician records in Oregon
Kent A. Karren, MD is one of 322 ophthalmology physician records with a practice address in Oregon. 67% 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, 76% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1986 · median 2007 among the 189 with a school on file
- Record last updated2012 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Oregon
There are 322 ophthalmology physician records in Oregon.
All 322 in Oregon → Every provider in Eugene → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Balamurali Ambati, MDEugene, OR 974011750397576
- Robert Champer, MD, PHDEugene, OR 974011861490088
- Scott Cherne, MDEugene, OR 974011033139688
- William Cox, M.D.Eugene, OR 974011992778443
- Robert Davis, MDEugene, OR 974011427056654
- John Deguire, MDEugene, OR 974011487750873
- Keyhan Farkhondepay-Aryah, MDEugene, OR 974011598763716
- John Haines, M.D.Eugene, OR 974011912906496
Common questions
What is Kent A. Karren, MD's NPI number?
Kent A. Karren, MD's National Provider Identifier (NPI) is 1942208160, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Kent A. Karren, MD located?
The NPPES record lists a practice address at 1550 Oak St, Eugene, OR, 97401. Phone: (541) 683-2020. Providers update this record themselves, so call before visiting.
How can I verify Kent A. Karren, MD's license?
NPPES lists Oregon license number MD 22688, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kent A. Karren, MD prescribe under Medicare Part D?
In 2024, Kent A. Karren, MD had 561 Medicare Part D claims for 253 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Kent A. Karren, MD's MIPS final score?
The 2023 MIPS final score is 95.2 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.