Megan Rotzenberg, M.D.
Internal Medicine Physician · Germantown, WI
Megan Rotzenberg, M.D. is an internal medicine physician with a practice address in Germantown, Wisconsin, and NPI 1285084335, issued on Jun 20, 2016. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Megan Rotzenberg
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301110358 MI
Self-reported in NPPES; status is on the state search - Practice location
- N112W15415 Mequon RD, Germantown, WI 53022
- Phone
- (262) 250-7800
- Enumerated
- Jun 20, 2016
- Record last updated
- Aug 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200903001894); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2016
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at N112W15415 Mequon RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Aita, DPTPhysical Therapist1881186922
- Avi Bernstein, MDInternal Medicine Physician1972643252
- Karen Brown, APNPFamily Nurse Practitioner1407121676
- Amanda Cooper, M.D.Dermatology Physician1588808562
- Thomas Czarnecki, DPMFoot Surgery Podiatrist1881769776
- Calin DumitrescuFamily Medicine Physician1184326688
Verify Megan Rotzenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,043 Medicare Part D claims for 191 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Atorvastatin Calcium159 claims
- Amlodipine Besylate105 claims
- Levothyroxine Sodium62 claims
- Rosuvastatin Calcium58 claims
- Losartan Potassium51 claims
- Trazodone Hcl47 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): 75.8 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).
Industry payments in 2024: $18.97
1 payment: food and beverage; the largest payer was Dynavax Technologies Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Columbia St Marys Hospital Milwaukee IncMilwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Megan Rotzenberg among 2,078 internal medicine physician records in Wisconsin
Megan Rotzenberg, 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 2016, is newer than 75% of them.
- NPI issued2016 · 75% of these records are older, 23% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2016 · 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).
4 internal medicine physician records list a practice address in Germantown
They are 4 of the 329 NPPES records with a practice address in Germantown, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Germantown → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Avi Bernstein, MDGermantown, WI 530221972643252
- Stephanie Momper, MDGermantown, WI 530221194899005
- Christopher WeberGermantown, WI 530221619140001
- Muhammed Al-Fawakhiri, MDGrafton, WI 530241942276613
- Daniel Attanasio, D.O.Grafton, WI 530241609801380
- Melinda Bonilla-Puetz, MDGrafton, WI 530241942233101
- Richard Bunting, MDGrafton, WI 530241730111964
- William Ebinger, MDGrafton, WI 530241700818952
Common questions
What is Megan Rotzenberg, M.D.'s NPI number?
Megan Rotzenberg, M.D.'s National Provider Identifier (NPI) is 1285084335, issued on Jun 20, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Megan Rotzenberg, M.D. located?
The NPPES record lists a practice address at N112W15415 Mequon RD, Germantown, WI, 53022. Phone: (262) 250-7800. Providers update this record themselves, so call before visiting.
How can I verify Megan Rotzenberg, M.D.'s license?
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 Megan Rotzenberg, M.D. prescribe under Medicare Part D?
In 2024, Megan Rotzenberg, M.D. had 2,043 Medicare Part D claims for 191 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Megan Rotzenberg, M.D.'s MIPS final score?
The 2023 MIPS final score is 75.8 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.