Simon B. Griesbach, M.D.
Family Medicine Physician · Waukesha, WI
Simon B. Griesbach, M.D. is a family medicine physician with a practice address in Waukesha, Wisconsin, and NPI 1578839387, issued on Mar 26, 2012. Check the license (Wisconsin 61212, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Simon B. Griesbach
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 61212 WI
Self-reported in NPPES; status is on the state search - Practice location
- 210 NW Barstow St, Waukesha, WI 53188
- Phone
- (262) 548-6903
- Enumerated
- Mar 26, 2012
- Record last updated
- Jun 16, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (262) 548-3820
- Medicare enrollment
- Enrolled (PECOS I20150609000636); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2013
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 210 NW Barstow St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Amaris Estrada, RDHDental Hygienist1073786687
- Justin Ferkin, DOFamily Medicine Physician1770386633
- Kristen Fox, M.D.Family Medicine Physician1356736185
- Adelheid GaertnerDental Hygienist1134537277
Verify Simon B. Griesbach in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 61212Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average family medicine physician in 2024
1,466 Medicare Part D claims for 181 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 62 claims were for opioids.
Most prescribed
- Atorvastatin Calcium134 claims
- Lisinopril66 claims
- Amlodipine Besylate61 claims
- Gabapentin57 claims
- Albuterol Sulfate Hfa56 claims
- Pantoprazole Sodium34 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
- Prohealth Medical Group IncWaukesha, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Simon B. Griesbach among 3,765 family medicine physician records in Wisconsin
Simon B. Griesbach, M.D. 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 2012, is newer than 69% of them.
- NPI issued2012 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2013 · median 2007 among the 2,347 with a school on file
- Record last updated2015 · 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).
76 family medicine physician records list a practice address in Waukesha
They are 76 of the 2,814 NPPES records with a practice address in Waukesha, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Waukesha → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ronald Cooper, MDWaukesha, WI 531881396799615
- James Dall, MDWaukesha, WI 531881205908159
- Todd Doenier, MDWaukesha, WI 531881265496319
- Paul Doenier, M.D.Waukesha, WI 531881720030489
- Leif Esbensen, MDWaukesha, WI 531881669544508
- Patrick Ginn, M.D.Waukesha, WI 531881265404586
- Susanne Krasovich, MDWaukesha, WI 531881043261886
- Karen Nelson, M.D.Waukesha, WI 531881225097405
Common questions
What is Simon B. Griesbach, M.D.'s NPI number?
Simon B. Griesbach, M.D.'s National Provider Identifier (NPI) is 1578839387, issued on Mar 26, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Simon B. Griesbach, M.D. located?
The NPPES record lists a practice address at 210 NW Barstow St, Waukesha, WI, 53188. Phone: (262) 548-6903. Providers update this record themselves, so call before visiting.
How can I verify Simon B. Griesbach, M.D.'s license?
NPPES lists Wisconsin license number 61212, 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 Simon B. Griesbach, M.D. prescribe under Medicare Part D?
In 2024, Simon B. Griesbach, M.D. had 1,466 Medicare Part D claims for 181 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.