Kathryn Lynn Ritter, DO
Neonatal-Perinatal Medicine Physician · Milwaukee, WI
Kathryn Lynn Ritter, DO is a neonatal-perinatal medicine physician with a practice address in Milwaukee, Wisconsin, and NPI 1629717558, issued on May 31, 2022. Check the license (Wisconsin 81805-21, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Kathryn Lynn Ritter
- Credential
- DO
- Primary taxonomy
- Neonatal-Perinatal Medicine Physician 2080N0001X
- License numbers
- 81805-21 WI
R-12575 IA
Self-reported in NPPES; status is on the state search - Practice location
- 9200 W Wisconsin Ave, Milwaukee, WI 53226
- Phone
- (414) 805-6600
- Enumerated
- May 31, 2022
- Record last updated
- Nov 4, 2025
- Fax
- (414) 805-6622
- Medicare enrollment
- Enrolled (PECOS I20251103003693); may accept Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 2022
- Entity
- Type 1 · individual
8 nearest neonatal-perinatal medicine physician records → All 146 in Wisconsin → Look up another NPI →
Also registered at 9200 W Wisconsin Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shameem Aadam, RPHPharmacist1760755680
- Abubaker Abdalla, MDHospitalist Physician1194187617
- Sameem Abedin, MDHematology & Oncology Physician1063641157
- Lolia Abibo, M.D.Hospitalist Physician1912359795
- Haisam Abid, MBBSHospitalist Physician1578083184
- Faith Abodunrin, MDHematology & Oncology Physician1437768769
Verify Kathryn Lynn Ritter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 81805-21Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Kathryn Lynn Ritter among 146 neonatal-perinatal medicine physician records in Wisconsin
Kathryn Lynn Ritter, DO is one of 146 neonatal-perinatal medicine physician records with a practice address in Wisconsin. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2022, is newer than 98% of them.
- NPI issued2022 · 98% of these records are older, 0% newer
- In a Medicare fileNo · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated2022 · median 2014 among the 16 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080N0001X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neonatal-Perinatal Medicine Physician providers in Wisconsin
There are 146 neonatal-perinatal medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 146 in Wisconsin → Every provider in Milwaukee → Neonatal-Perinatal Medicine Physician nationwide →
The 8 neonatal-perinatal medicine physician records with the nearest ZIP codes
- Mir Abdul Basir, MDMilwaukee, WI 532261013967546
- Gary Cohen, MDMilwaukee, WI 532261992757595
- Utpala Das, MDMilwaukee, WI 532261619928785
- Carey Ehlert, MDMilwaukee, WI 532261376594283
- Robert Kliegman, MDMilwaukee, WI 532261407807241
- Girija Konduri, MDMilwaukee, WI 532261407808223
- Steven Leuthner, MDMilwaukee, WI 532261104877950
- D McCarver, MDMilwaukee, WI 532261154372902
Common questions
What is Kathryn Lynn Ritter, DO's NPI number?
Kathryn Lynn Ritter, DO's National Provider Identifier (NPI) is 1629717558, issued on May 31, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Lynn Ritter, DO located?
The NPPES record lists a practice address at 9200 W Wisconsin Ave, Milwaukee, WI, 53226. Phone: (414) 805-6600. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Lynn Ritter, DO's license?
NPPES lists Wisconsin license number 81805-21, 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. 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.