Timothy Joseph Zelko, D.O.
Obstetrics & Gynecology Physician · Kenosha, WI
Timothy Joseph Zelko, D.O. is an obstetrics & gynecology physician with a practice address in Kenosha, Wisconsin, and NPI 1154443174, issued on Apr 3, 2007. Check the license (Wisconsin 24876-021, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Timothy Joseph Zelko
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 24876-021 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9916 75TH St, Kenosha, WI 53142
- Phone
- (262) 697-7750
- Enumerated
- Apr 3, 2007
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 30022900 WI
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 796 in Wisconsin → Look up another NPI →
Also registered at 9916 75TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Calteux, RPHPharmacist1700281607
- Donna Hassan, RN, BSNPsychiatric/Mental Health Registered Nurse1235420191
- Cynthia Kadziulis, RNRegistered Nurse1083959696
- Darby Parrish, RNRegistered Nurse1497090005
- Satnam Singh, M.DAdult Medicine Physician1760643118
Verify Timothy Joseph Zelko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 24876-021Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
71 Medicare Part D claims for 14 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Cephalexin18 claims
- Acetaminophen-Codeine16 claims
- Ondansetron Hcl16 claims
- Lorazepam15 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.
Timothy Joseph Zelko among 796 obstetrics & gynecology physician records in Wisconsin
Timothy Joseph Zelko, D.O. is one of 796 obstetrics & gynecology physician records with a practice address in Wisconsin. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 53% of them.
- NPI issued2007 · 53% of these records are older, 40% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2007 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Wisconsin
There are 796 obstetrics & gynecology physician records in Wisconsin.
All 796 in Wisconsin → Every provider in Kenosha → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Leonard Fagan, M.D.Kenosha, WI 531421104812171
- Eleanor Figuerres, DOKenosha, WI 531421215983622
- Mariam Hanna, MDKenosha, WI 531421952714222
- Maximilian Hecht, MD, MPHKenosha, WI 531421700056744
- Kristin Jones, D.OKenosha, WI 531421497065080
- Samantha LauhonKenosha, WI 531421730768490
- Ashley McSorley, D.O.Kenosha, WI 531421790121663
- Barbara Robinson, M.D.Kenosha, WI 531421336135300
Common questions
What is Timothy Joseph Zelko, D.O.'s NPI number?
Timothy Joseph Zelko, D.O.'s National Provider Identifier (NPI) is 1154443174, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Joseph Zelko, D.O. located?
The NPPES record lists a practice address at 9916 75TH St, Kenosha, WI, 53142. Phone: (262) 697-7750. Providers update this record themselves, so call before visiting.
How can I verify Timothy Joseph Zelko, D.O.'s license?
NPPES lists Wisconsin license number 24876-021, 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 Timothy Joseph Zelko, D.O. prescribe under Medicare Part D?
In 2024, Timothy Joseph Zelko, D.O. had 71 Medicare Part D claims for 14 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.