Lynda A. Siewert, MD
Family Medicine Physician · Cottage Grove, WI
Lynda A. Siewert, MD is a family medicine physician with a practice address in Cottage Grove, Wisconsin, and NPI 1225087893, issued on May 9, 2006. Check the license (Wisconsin 37051, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Lynda A. Siewert
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 37051 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 9, 2006
- Record last updated
- Nov 2, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 32182300 WI
- Medicare enrollment
- Enrolled (PECOS I20101204000031); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1994
- Entity
- Type 1 · individual
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 Lynda A. Siewert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 37051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average family medicine physician in 2024
3,194 Medicare Part D claims for 147 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 98 claims were for opioids.
Most prescribed
- Simvastatin179 claims
- Levothyroxine Sodium119 claims
- Omeprazole113 claims
- Amlodipine Besylate104 claims
- Atorvastatin Calcium97 claims
- Warfarin Sodium95 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).
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 10 in Cottage Grove → All 3,765 in Wisconsin → Every provider in Cottage Grove →
Other family medicine physician records in Wisconsin
- Ashraf AbbasAppleton, WI1558723775
- Ghudran Abdulal, MDNew Berlin, WI1083622666
- Yusuf Abdullah, DOSun Prairie, WI1437788478
- Vanessa Abejuela-Matt, D.O.Mount Pleasant, WI1558687749
- Emily Abeyta, MDWaukesha, WI1386905107
- Jeanette Abraham, MDWeston, WI1205895810
- Sarada Abraham, M.D.Oconomowoc, WI1962851972
- Kirsten Abramson, MDMadison, WI1417909979
- Alexandra Adams, MD PHDMadison, WI1184689291
- David AdamsMadison, WI1992986897
Common questions
What is Lynda A. Siewert, MD's NPI number?
Lynda A. Siewert, MD's National Provider Identifier (NPI) is 1225087893, issued on May 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lynda A. 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 Lynda A. Siewert, MD's license?
NPPES lists Wisconsin license number 37051, 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 Lynda A. Siewert, MD prescribe under Medicare Part D?
In 2024, Lynda A. Siewert, MD had 3,194 Medicare Part D claims for 147 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.