Rebecca L. Zimmermann, D.O.
Family Medicine Physician · Lake Geneva, WI
Rebecca L. Zimmermann, D.O. is a family medicine physician with a practice address in Lake Geneva, Wisconsin, and NPI 1669788477, issued on Aug 31, 2010. Check the license (Wisconsin 56641-21, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Rebecca L. Zimmermann
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 56641-21 WI
Self-reported in NPPES; status is on the state search - Practice location
- 146 E Geneva SQ, Lake Geneva, WI 53147
- Phone
- (262) 249-5000
- Enumerated
- Aug 31, 2010
- Record last updated
- Sep 8, 2025
- Fax
- (262) 248-7107
- Medicaid ID
- 100023071 WI
- Medicare enrollment
- Enrolled (PECOS I20120607000595); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 146 E Geneva SQ
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zachary Allegretti, MDFamily Medicine Physician1952807554
- Nancy Asencio, APNPNurse Practitioner1962410530
- Austin Bacchus, M.D.Family Medicine Physician1225258171
- Ellen Barnstable, MDDermatology Physician1053948562
- Justine Benin, D.O.Family Medicine Physician1942541362
- Shashi Bhushan, MDInternal Medicine Physician1689774101
Verify Rebecca L. Zimmermann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 56641-21Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% more Medicare Part D claims than the average family medicine physician in 2024
6,580 Medicare Part D claims for 543 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 148 claims were for opioids.
Most prescribed
- Atorvastatin Calcium444 claims
- Levothyroxine Sodium321 claims
- Losartan Potassium285 claims
- Amlodipine Besylate247 claims
- Lisinopril207 claims
- Omeprazole205 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: $21.44
1 payment: food and beverage; the largest payer was Pfizer Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Aurora Medical Group, Inc.Milwaukee, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rebecca L. Zimmermann among 3,765 family medicine physician records in Wisconsin
Rebecca L. Zimmermann, D.O. 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 2010, is newer than 65% of them.
- NPI issued2010 · 65% of these records are older, 33% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2010 · median 2007 among the 2,347 with a school on file
- Record last updated2025 · 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).
23 family medicine physician records list a practice address in Lake Geneva
They are 23 of the 366 NPPES records with a practice address in Lake Geneva, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Lake Geneva → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Austin Bacchus, M.D.Lake Geneva, WI 531471225258171
- Justine Benin, D.O.Lake Geneva, WI 531471942541362
- Norbert Debiase, MDLake Geneva, WI 531471497959779
- Greg Gerber, MDLake Geneva, WI 531471831204916
- Volha Haliantava, M.D.Lake Geneva, WI 531471598008351
- Britton Kolar, MDLake Geneva, WI 531471114076486
- Andrew MeyerLake Geneva, WI 531471801069091
- Andrew Morton, MDLake Geneva, WI 531471619242005
Common questions
What is Rebecca L. Zimmermann, D.O.'s NPI number?
Rebecca L. Zimmermann, D.O.'s National Provider Identifier (NPI) is 1669788477, issued on Aug 31, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca L. Zimmermann, D.O. located?
The NPPES record lists a practice address at 146 E Geneva SQ, Lake Geneva, WI, 53147. Phone: (262) 249-5000. Providers update this record themselves, so call before visiting.
How can I verify Rebecca L. Zimmermann, D.O.'s license?
NPPES lists Wisconsin license number 56641-21, 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 Rebecca L. Zimmermann, D.O. prescribe under Medicare Part D?
In 2024, Rebecca L. Zimmermann, D.O. had 6,580 Medicare Part D claims for 543 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.