Dominic Klosowski, MD
Family Medicine Physician · Eugene, OR
Dominic Klosowski, MD is a family medicine physician with a practice address in Eugene, Oregon, and NPI 1265162168, issued on Jun 14, 2022. Check the license (Oregon MD224652, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Dominic Klosowski
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- MD224652 OR
4351049991 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1835 Pearl Street, Eugene, OR 97401
- Phone
- (541) 762-6050
- Enumerated
- Jun 14, 2022
- Record last updated
- Jul 3, 2025
- Fax
- (541) 762-6021
- Medicare enrollment
- Enrolled (PECOS I20250722003967); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,847 in Oregon → Look up another NPI →
Also registered at 1835 Pearl Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Toni Feist, FNPFamily Nurse Practitioner1780660589
- Virginia Slaughter, FNP-CFamily Nurse Practitioner1336625078
Verify Dominic Klosowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD224652Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average family medicine physician in 2024
631 Medicare Part D claims for 83 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium59 claims
- Tamsulosin Hcl33 claims
- Levothyroxine Sodium27 claims
- Rosuvastatin Calcium23 claims
- Metformin Hcl Er22 claims
- Lisinopril21 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
- Praxis Health PCEugene, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dominic Klosowski among 2,847 family medicine physician records in Oregon
Dominic Klosowski, MD is one of 2,847 family medicine physician records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · median 2009 among the 1,671 with a school on file
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
157 family medicine physician records list a practice address in Eugene
They are 157 of the 8,239 NPPES records with a practice address in Eugene, and 2,847 family medicine physician records in Oregon.
All 2,847 in Oregon → Every provider in Eugene → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Juanita Doerksen, M.D.Eugene, OR 974011679546162
- Jean Edsall, MDEugene, OR 974011073591574
- Jeffrey Goldenberg, MDEugene, OR 974011306816459
- Larry Hirons, M.D.Eugene, OR 974011760456206
- Laura Jakious, M.D.Eugene, OR 974011073589552
- Barry Jarvis, M.DEugene, OR 974011528034899
- Christine Jensen-Fox, M.D.Eugene, OR 974011942287933
- Scott Johnson, MDEugene, OR 974011093785149
Common questions
What is Dominic Klosowski, MD's NPI number?
Dominic Klosowski, MD's National Provider Identifier (NPI) is 1265162168, issued on Jun 14, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Dominic Klosowski, MD located?
The NPPES record lists a practice address at 1835 Pearl Street, Eugene, OR, 97401. Phone: (541) 762-6050. Providers update this record themselves, so call before visiting.
How can I verify Dominic Klosowski, MD's license?
NPPES lists Oregon license number MD224652, 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 Dominic Klosowski, MD prescribe under Medicare Part D?
In 2024, Dominic Klosowski, MD had 631 Medicare Part D claims for 83 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.