Katharina S. Stewart, MD
Maternal & Fetal Medicine Physician · Madison, WI
Katharina S. Stewart, MD is a maternal & fetal medicine physician with a practice address in Madison, Wisconsin, and NPI 1053380345, issued on Mar 17, 2006. Check the license (Wisconsin 39824, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Katharina S. Stewart
- Credential
- MD
- Primary taxonomy
- Maternal & Fetal Medicine Physician 207VM0101X
- License number
- 39824 WI
Self-reported in NPPES; status is on the state search - Practice location
- 202 S Park St, Madison, WI 53715
- Phone
- (608) 417-6667
- Enumerated
- Mar 17, 2006
- Record last updated
- Apr 7, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (608) 417-6364
- Medicare enrollment
- Enrolled (PECOS I20031204000736); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest maternal & fetal medicine physician records → All 56 in Wisconsin → Look up another NPI →
Also registered at 202 S Park St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jacquelyn Adams, M.D.Maternal & Fetal Medicine Physician1811330376
- Lynsi Albright, PTAPhysical Therapy Assistant1225380645
- Ibrahim Ali, MDInternal Medicine Physician1588292023
- William Alward, MDPulmonary Disease Physician1609880939
- Iliya Amaza, M.D.Pulmonary Disease Physician1205242732
- Jose Anaya, M.D.Internal Medicine Physician1679717680
Verify Katharina S. Stewart in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 39824Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- University OF Wisconsin Medical Foundation IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katharina S. Stewart among 56 maternal & fetal medicine physician records in Wisconsin
Katharina S. Stewart, MD is one of 56 maternal & fetal medicine physician records with a practice address in Wisconsin. 82% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 61% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1992 · median 2007 among the 40 with a school on file
- Record last updated2009 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Maternal & Fetal Medicine Physician providers in Wisconsin
There are 56 maternal & fetal medicine physician records in Wisconsin.
All 56 in Wisconsin → Every provider in Madison → Maternal & Fetal Medicine Physician nationwide →
The 8 maternal & fetal medicine physician records with the nearest ZIP codes
- Jacquelyn Adams, M.D.Madison, WI 537151811330376
- Erin Bailey, MDMadison, WI 537151841729076
- Michael Balistreri, M.D.Madison, WI 537151225353055
- Michael Beninati, MDMadison, WI 537151033453600
- Susan Davidson, MDMadison, WI 537151841232873
- Sabine Droste, MDMadison, WI 537151174599294
- Kara Hoppe, D.O.Madison, WI 537151063677920
- Christopher Huls, MDMadison, WI 537151609842764
Common questions
What is Katharina S. Stewart, MD's NPI number?
Katharina S. Stewart, MD's National Provider Identifier (NPI) is 1053380345, issued on Mar 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katharina S. Stewart, MD located?
The NPPES record lists a practice address at 202 S Park St, Madison, WI, 53715. Phone: (608) 417-6667. Providers update this record themselves, so call before visiting.
How can I verify Katharina S. Stewart, MD's license?
NPPES lists Wisconsin license number 39824, 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.
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.