Timothy Zelko, D.O.
NPI 1154443174 · Obstetrics & Gynecology Physician · Kenosha, WI
Timothy Zelko, D.O. is a Obstetrics & Gynecology Physician provider in Kenosha, WI (NPI 1154443174).
Provider details
- NPI number
- 1154443174
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 24876-021 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 18 | 12 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 16 | 11 |
| Ondansetron Hcl | 16 | 11 |
| Lorazepam | 15 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-03
- Last updated
- 2007-07-09
Frequently asked questions
- What is Timothy Zelko's NPI number?
- Timothy Zelko's National Provider Identifier (NPI) is 1154443174, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Zelko's specialty?
- Timothy Zelko is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Zelko located?
- Timothy Zelko's practice location on file with NPPES is 9916 75th St, Kenosha, WI 53142-7583.
- What is Timothy Zelko's phone number?
- The practice phone number listed in the NPPES registry for Timothy Zelko is (262) 697-7750.
- Is Timothy Zelko's NPI active?
- Yes — Timothy Zelko's NPI (1154443174) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.