Christopher M. Tanner, MD
Emergency Medicine Physician · Lake Geneva, WI
Christopher M. Tanner, MD is an emergency medicine physician with a practice address in Lake Geneva, Wisconsin, and NPI 1619394723, issued on Mar 26, 2014. Check the license (Wisconsin 67231-20, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Christopher M. Tanner
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 67231-20 WI
036-141738 IL
Self-reported in NPPES; status is on the state search - Practice location
- N2950 State Road 67, Lake Geneva, WI 53147
- Phone
- (262) 245-4990
- Enumerated
- Mar 26, 2014
- Record last updated
- Jul 21, 2022
- Fax
- (262) 245-2248
- Medicare enrollment
- Enrolled (PECOS I20260304002901); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2014
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →
Also registered at N2950 State Road 67
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hamik Biramian, DOEmergency Medicine Physician1689817488
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- Ashley Boro, OTOccupational Therapist1013421908
- Kenneth Bortin, MDCardiovascular Disease Physician1861554743
Verify Christopher M. Tanner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 67231-20Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average emergency medicine physician in 2024
488 Medicare Part D claims for 319 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 64 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen49 claims
- Ondansetron Odt43 claims
- Cephalexin42 claims
- Prednisone31 claims
- Azithromycin25 claims
- Doxycycline Hyclate19 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 CorporationHarvard, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher M. Tanner among 1,464 emergency medicine physician records in Wisconsin
Christopher M. Tanner, MD is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 67% of them.
- NPI issued2014 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2014 · median 2011 among the 844 with a school on file
- Record last updated2022 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 emergency medicine physician records list a practice address in Lake Geneva
They are 10 of the 366 NPPES records with a practice address in Lake Geneva, and 1,464 emergency medicine physician records in Wisconsin.
All 1,464 in Wisconsin → Every provider in Lake Geneva → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Hamik Biramian, DOLake Geneva, WI 531471689817488
- Joseph Brantman, M.D.Lake Geneva, WI 531471982090676
- Christopher Hanson, DOLake Geneva, WI 531471225415052
- Cullen Kehoe, DOLake Geneva, WI 531471013166925
- Elena Krause, MDLake Geneva, WI 531471518134410
- Geetha Krishnan, MDLake Geneva, WI 531471699067132
- David Madenberg, DOLake Geneva, WI 531471780751495
- Mitchell Sheley, MDLake Geneva, WI 531471093102378
Common questions
What is Christopher M. Tanner, MD's NPI number?
Christopher M. Tanner, MD's National Provider Identifier (NPI) is 1619394723, issued on Mar 26, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Christopher M. Tanner, MD located?
The NPPES record lists a practice address at N2950 State Road 67, Lake Geneva, WI, 53147. Phone: (262) 245-4990. Providers update this record themselves, so call before visiting.
How can I verify Christopher M. Tanner, MD's license?
NPPES lists Wisconsin license number 67231-20, 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 Christopher M. Tanner, MD prescribe under Medicare Part D?
In 2024, Christopher M. Tanner, MD had 488 Medicare Part D claims for 319 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.