Jeffrey Alan Kowalski, MD
Family Medicine Physician · Elkhorn, WI
Jeffrey Alan Kowalski, MD is a family medicine physician with a practice address in Elkhorn, Wisconsin, and NPI 1811169550, issued on Apr 1, 2008. Check the license (Wisconsin 54448-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Alan Kowalski
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 54448-20 WI
A117482 CA
Self-reported in NPPES; status is on the state search - Practice location
- 839 N Wisconsin St, Elkhorn, WI 53121
- Phone
- (262) 741-1400
- Enumerated
- Apr 1, 2008
- Record last updated
- Jul 9, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (262) 741-1401
- Medicare enrollment
- Enrolled (PECOS I20110729000336); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 839 N Wisconsin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Furey, DOFamily Medicine Physician1811334501
- Fares Sweis, MDFamily Medicine Physician1083095814
Verify Jeffrey Alan Kowalski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 54448-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average family medicine physician in 2024
10,151 Medicare Part D claims for 627 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 181 claims were for opioids.
Most prescribed
- Atorvastatin Calcium638 claims
- Amlodipine Besylate440 claims
- Omeprazole389 claims
- Levothyroxine Sodium310 claims
- Lisinopril289 claims
- Losartan Potassium262 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
- Mercy Health System CorporationElkhorn, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey Alan Kowalski among 3,765 family medicine physician records in Wisconsin
Jeffrey Alan Kowalski, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 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 2008, is newer than 59% of them.
- NPI issued2008 · 59% of these records are older, 37% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · median 2007 among the 2,347 with a school on file
- Record last updated2013 · 56% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 family medicine physician records list a practice address in Elkhorn
They are 19 of the 372 NPPES records with a practice address in Elkhorn, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Elkhorn → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ryan Brower, M.D.Elkhorn, WI 531211497102347
- Edward Carlson, MDElkhorn, WI 531211114036738
- Jessica Furey, DOElkhorn, WI 531211811334501
- Bridget Kampman, M.DElkhorn, WI 531211922237023
- Rabeea Lodhra, MDElkhorn, WI 531211548898059
- Kamal Muzaffar, MDElkhorn, WI 531211174599500
- Roger Petersen, M.D.Elkhorn, WI 531211871853846
- Bria Prososki, MDElkhorn, WI 531211316423056
Common questions
What is Jeffrey Alan Kowalski, MD's NPI number?
Jeffrey Alan Kowalski, MD's National Provider Identifier (NPI) is 1811169550, issued on Apr 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Alan Kowalski, MD located?
The NPPES record lists a practice address at 839 N Wisconsin St, Elkhorn, WI, 53121. Phone: (262) 741-1400. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Alan Kowalski, MD's license?
NPPES lists Wisconsin license number 54448-20, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jeffrey Alan Kowalski, MD prescribe under Medicare Part D?
In 2024, Jeffrey Alan Kowalski, MD had 10,151 Medicare Part D claims for 627 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.