Ruth D. Kozlowski, DO
Internal Medicine Physician · Commerce Township, MI
Ruth D. Kozlowski, DO is an internal medicine physician with a practice address in Commerce Township, Michigan, and NPI 1174598270, issued on Feb 22, 2006. Check the license (Michigan RK008620, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Ruth D. Kozlowski
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- RK008620 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2455 Union Lake RD Ste 101, Commerce Township, MI 48382
- Phone
- (248) 363-2239
- Enumerated
- Feb 22, 2006
- Record last updated
- Dec 15, 2025
- Fax
- (248) 363-3517
- Medicare enrollment
- Enrolled (PECOS I20100722000714); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1983
- Entity
- Type 1 · individual
Also registered at 2455 Union Lake RD Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ginnie Spadafore-Barrett, PA-CPhysician Assistant1265407530
Verify Ruth D. Kozlowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license RK008620Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,478 Medicare Part D claims for 291 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium197 claims
- Atorvastatin Calcium178 claims
- Methotrexate122 claims
- Hydroxychloroquine Sulfate113 claims
- Simvastatin105 claims
- Rosuvastatin Calcium99 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): 80.6 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).
Bills Medicare through one group practice
- Vhs Physicians OF MichiganCommerce Township, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
11 internal medicine physician records list a practice address in Commerce Township
They are 11 of the 462 NPPES records with a practice address in Commerce Township, and 5,735 internal medicine physician records in Michigan.
All 11 in Commerce Township → All 5,735 in Michigan → Every provider in Commerce Township →
Other internal medicine physician records in Michigan
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- Ali Abbas, M.D.Pontiac, MI1972167526
- Sura Abbas, MDWarren, MI1801687405
- Ramzi Abbasi, MDSaginaw, MI1164270005
- Saadat Abbasi, MDKalamazoo, MI1912005596
- Shahzaman Abbasi, MDLansing, MI1376512111
- Youssef Abbiss, D.O.Mount Clemens, MI1982991881
- Valerie Abbott, MDSouthfield, MI1740289487
- Samer Abboud, MDSaginaw, MI1245804178
Common questions
What is Ruth D. Kozlowski, DO's NPI number?
Ruth D. Kozlowski, DO's National Provider Identifier (NPI) is 1174598270, issued on Feb 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth D. Kozlowski, DO located?
The NPPES record lists a practice address at 2455 Union Lake RD Ste 101, Commerce Township, MI, 48382. Phone: (248) 363-2239. Providers update this record themselves, so call before visiting.
How can I verify Ruth D. Kozlowski, DO's license?
NPPES lists Michigan license number RK008620, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ruth D. Kozlowski, DO prescribe under Medicare Part D?
In 2024, Ruth D. Kozlowski, DO had 2,478 Medicare Part D claims for 291 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Ruth D. Kozlowski, DO's MIPS final score?
The 2023 MIPS final score is 80.6 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.