Lewis A. Rosenberg, MD PHD
Radiation Oncology Physician · Mount Pleasant, WI
Lewis A. Rosenberg, MD PHD is a radiation oncology physician with a practice address in Mount Pleasant, Wisconsin, and NPI 1790974780, issued on Oct 16, 2007. Check the license (Wisconsin 65848-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Lewis A. Rosenberg
- Credential
- MD PHD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 65848-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3809 Spring St, Mount Pleasant, WI 53405
- Phone
- (262) 687-5000
- Enumerated
- Oct 16, 2007
- Record last updated
- Oct 17, 2023
- Medicare enrollment
- Enrolled (PECOS I20160906001245); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2007
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 153 in Wisconsin → Look up another NPI →
Also registered at 3809 Spring St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kelley Boster, MSGenetic Counselor (M.S.)1538739305
- Michelle Bregenzer, APNPNurse Practitioner1861445546
- Beth Kielas, RDNRegistered Dietitian1346125838
- Natalie MalinskiPharmacist1265358923
- Jennifer MinessaleAdult Health Nurse Practitioner1649597519
Verify Lewis A. Rosenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 65848-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average radiation oncology physician in 2024
325 Medicare Part D claims for 126 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 36 claims were for opioids.
Most prescribed
- Tamsulosin Hcl74 claims
- Hydrocodone-Acetaminophen27 claims
- Ciprofloxacin Hcl25 claims
- Diazepam25 claims
- Memantine Hcl21 claims
- Gabapentin17 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.
Industry payments in 2024: $49.99
1 payment: education; the largest payer was Exelixis Inc. The 3,275 providers of this specialty with any payment received $1,897.85 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
- Radiation Oncology Associates LtdMount Pleasant, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lewis A. Rosenberg among 153 radiation oncology physician records in Wisconsin
Lewis A. Rosenberg, MD PHD is one of 153 radiation oncology physician records with a practice address in Wisconsin. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.
- NPI issued2007 · 45% of these records are older, 50% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2007 · median 2008 among the 119 with a school on file
- Record last updated2023 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Wisconsin
There are 153 radiation oncology physician records in Wisconsin.
All 153 in Wisconsin → Every provider in Mount Pleasant → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- James Taylor, MDRacine, WI 534051821030800
- Laura Ulmer, MDRacine, WI 534051336187251
- Eric Xanthopoulos, MDBeloit, WI 535111457693079
- Roger Byhardt, MDMilwaukee, WI 532951528019916
- Jonathan Lubin, MDJanesville, WI 535461790244754
- Nicholas Rydzewski, MDJanesville, WI 535481568855161
- Tamara Vern-Gross, DOMonroe, WI 535661679732036
- Bartlett Witherspoon, MDMonroe, WI 535661295717973
Common questions
What is Lewis A. Rosenberg, MD PHD's NPI number?
Lewis A. Rosenberg, MD PHD's National Provider Identifier (NPI) is 1790974780, issued on Oct 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lewis A. Rosenberg, MD PHD located?
The NPPES record lists a practice address at 3809 Spring St, Mount Pleasant, WI, 53405. Phone: (262) 687-5000. Providers update this record themselves, so call before visiting.
How can I verify Lewis A. Rosenberg, MD PHD's license?
NPPES lists Wisconsin license number 65848-20, 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 Lewis A. Rosenberg, MD PHD prescribe under Medicare Part D?
In 2024, Lewis A. Rosenberg, MD PHD had 325 Medicare Part D claims for 126 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.