Katherine M. Bayliss, MD
General Practice Physician · Colgate, WI
Katherine M. Bayliss, MD is a general practice physician with a practice address in Colgate, Wisconsin, and NPI 1144288861, issued on May 2, 2006. Check the license (Wisconsin 28481, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Katherine M. Bayliss
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 28481 WI
Self-reported in NPPES; status is on the state search - Practice location
- 5449 Monches RD, Colgate, WI 53017
- Phone
- (414) 828-0331
- Enumerated
- May 2, 2006
- Record last updated
- Sep 27, 2022
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 105 in Wisconsin → Look up another NPI →
Verify Katherine M. Bayliss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 28481Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average general practice physician in 2024
61 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
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.
Katherine M. Bayliss among 105 general practice physician records in Wisconsin
Katherine M. Bayliss, MD is one of 105 general practice physician records with a practice address in Wisconsin. 41% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 64% newer
- In a Medicare fileYes · 41% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2022 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 general practice physician record lists a practice address in Colgate
They are 1 of the 17 NPPES records with a practice address in Colgate, and 105 general practice physician records in Wisconsin.
All 105 in Wisconsin → Every provider in Colgate → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- James Gariti, MDBrookfield, WI 530051457562944
- Richard SchaeferBrookfield, WI 530051861552044
- James White, MDBrookfield, WI 530051316021918
- Shirley Godiwalla, MDPewaukee, WI 530721518929611
- Steven Kotsonis, M.D.Pewaukee, WI 530721306017991
- Aaron Rosenberg, M.D.Mequon, WI 530921306237417
- Robert Heinen, MDWatertown, WI 530941861594251
- Christine Haselhorst, MDElm Grove, WI 531221316574874
Common questions
What is Katherine M. Bayliss, MD's NPI number?
Katherine M. Bayliss, MD's National Provider Identifier (NPI) is 1144288861, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine M. Bayliss, MD located?
The NPPES record lists a practice address at 5449 Monches RD, Colgate, WI, 53017. Phone: (414) 828-0331. Providers update this record themselves, so call before visiting.
How can I verify Katherine M. Bayliss, MD's license?
NPPES lists Wisconsin license number 28481, 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 Katherine M. Bayliss, MD prescribe under Medicare Part D?
In 2024, Katherine M. Bayliss, MD had 61 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.