Steven P. Siewert, MD
Family Medicine Physician · Cottage Grove, WI
Steven P. Siewert, MD is a family medicine physician with a practice address in Cottage Grove, Wisconsin, and NPI 1861442931, issued on May 11, 2006. Check the license (Wisconsin 39206, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Steven P. Siewert
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 39206 WI
Self-reported in NPPES; status is on the state search - Practice location
- 251 E Cottage Grove RD, Cottage Grove, WI 53527
- Phone
- (608) 839-3515
- Enumerated
- May 11, 2006
- Record last updated
- Nov 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (608) 839-3541
- Medicaid ID
- 32361700 WI
- Medicare enrollment
- Enrolled (PECOS I20110218000750); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1996
- 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 251 E Cottage Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jason Hampton, MDFamily Medicine Physician1689838492
- Susan Kees Johnson, PA-CMedical Physician Assistant1467410902
- Kathleen Knipfer, P.A. C.Physician Assistant1154586717
- Dorothy Mallory, MDFamily Medicine Physician1831139039
- Julia McMillen, M.D.Family Medicine Physician1194014316
- Leila Midelfort, MDFamily Medicine Physician1891735841
Verify Steven P. Siewert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 39206Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average family medicine physician in 2024
5,246 Medicare Part D claims for 345 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 372 claims were for opioids.
Most prescribed
- Atorvastatin Calcium431 claims
- Lisinopril274 claims
- Simvastatin173 claims
- Oxycodone Hcl147 claims
- Levothyroxine Sodium146 claims
- Metoprolol Succinate138 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
- Wildwood Family Clinic SCCottage Grove, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven P. Siewert among 3,765 family medicine physician records in Wisconsin
Steven P. Siewert, MD 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1996 · median 2007 among the 2,347 with a school on file
- Record last updated2020 · 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).
10 family medicine physician records list a practice address in Cottage Grove
They are 10 of the 73 NPPES records with a practice address in Cottage Grove, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Cottage Grove → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jason Hampton, MDCottage Grove, WI 535271689838492
- Dylan Ledford, DOCottage Grove, WI 535271427443753
- Dorothy Mallory, MDCottage Grove, WI 535271831139039
- Julia McMillen, M.D.Cottage Grove, WI 535271194014316
- Emily Metzger, MDCottage Grove, WI 535271114381514
- Leila Midelfort, MDCottage Grove, WI 535271891735841
- Anne Niebler, MDCottage Grove, WI 535271578532701
- Lynda Siewert, MDCottage Grove, WI 535271225087893
Common questions
What is Steven P. Siewert, MD's NPI number?
Steven P. Siewert, MD's National Provider Identifier (NPI) is 1861442931, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven P. Siewert, MD located?
The NPPES record lists a practice address at 251 E Cottage Grove RD, Cottage Grove, WI, 53527. Phone: (608) 839-3515. Providers update this record themselves, so call before visiting.
How can I verify Steven P. Siewert, MD's license?
NPPES lists Wisconsin license number 39206, 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 Steven P. Siewert, MD prescribe under Medicare Part D?
In 2024, Steven P. Siewert, MD had 5,246 Medicare Part D claims for 345 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.