Ronald Stanley Lisiecki, M.D.
Internal Medicine Physician · Brownsville, WI
Ronald Stanley Lisiecki, M.D. is an internal medicine physician with a practice address in Brownsville, Wisconsin, and NPI 1376858951, issued on Aug 8, 2010. Check the license (Wisconsin 70342, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ronald Stanley Lisiecki
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 70342 WI
Self-reported in NPPES; status is on the state search - Practice location
- 900 Main St, Brownsville, WI 53006
- Phone
- (920) 583-1300
- Enumerated
- Aug 8, 2010
- Record last updated
- Nov 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190130000103); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 900 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Maltby, R.PH.Pharmacist1073957346
- Andrea Weigand, APNPNurse Practitioner1952617144
Verify Ronald Stanley Lisiecki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 70342Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,429 Medicare Part D claims for 478 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 207 claims were for opioids.
Most prescribed
- Atorvastatin Calcium484 claims
- Losartan Potassium308 claims
- Rosuvastatin Calcium245 claims
- Amlodipine Besylate235 claims
- Simvastatin225 claims
- Lisinopril218 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
- Agnesian Healthcare IncFond Du Lac, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald Stanley Lisiecki among 2,078 internal medicine physician records in Wisconsin
Ronald Stanley Lisiecki, M.D. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 65% of them.
- NPI issued2010 · 65% of these records are older, 33% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1995 · median 2002 among the 1,098 with a school on file
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 internal medicine physician record lists a practice address in Brownsville
They are 1 of the 12 NPPES records with a practice address in Brownsville, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Brownsville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- John Basich, M.D.Brookfield, WI 530051730239393
- Douglas Brown, M.D.Brookfield, WI 530051700945599
- Donald Carr, MDBrookfield, WI 530051437257045
- Timothy Cooper, M.D.Brookfield, WI 530051225456296
- Daniel Forward, M.D.Brookfield, WI 530051184739492
- Rita Hanson, MDBrookfield, WI 530051629135306
- Timothy Jest, M.D.Brookfield, WI 530051538274022
- Daryl Melzer, M.D.Brookfield, WI 530051831256510
Common questions
What is Ronald Stanley Lisiecki, M.D.'s NPI number?
Ronald Stanley Lisiecki, M.D.'s National Provider Identifier (NPI) is 1376858951, issued on Aug 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Stanley Lisiecki, M.D. located?
The NPPES record lists a practice address at 900 Main St, Brownsville, WI, 53006. Phone: (920) 583-1300. Providers update this record themselves, so call before visiting.
How can I verify Ronald Stanley Lisiecki, M.D.'s license?
NPPES lists Wisconsin license number 70342, 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 Ronald Stanley Lisiecki, M.D. prescribe under Medicare Part D?
In 2024, Ronald Stanley Lisiecki, M.D. had 7,429 Medicare Part D claims for 478 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.