IndividualActive
Sylvester Szadkowski, M.D.
NPI 1780744532 · Neurology Physician · Winnebago, WI
Sylvester Szadkowski, M.D. is a Neurology Physician provider in Winnebago, WI (NPI 1780744532).
Provider details
- NPI number
- 1780744532
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 22828 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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.
Practice location
1300 South Dr.
Winnebago, WI 54985-0009
Phone: (920) 235-4910
Fax: (920) 236-2931
Street-level locationGet directions
Mailing address
1300 South Dr.
Winnebago, WI 54985-0009
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2023-03-07
Frequently asked questions
- What is Sylvester Szadkowski's NPI number?
- Sylvester Szadkowski's National Provider Identifier (NPI) is 1780744532, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sylvester Szadkowski's specialty?
- Sylvester Szadkowski is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Sylvester Szadkowski located?
- Sylvester Szadkowski's practice location on file with NPPES is 1300 South Dr., Winnebago, WI 54985-0009.
- What is Sylvester Szadkowski's phone number?
- The practice phone number listed in the NPPES registry for Sylvester Szadkowski is (920) 235-4910.
- Is Sylvester Szadkowski's NPI active?
- Yes — Sylvester Szadkowski's NPI (1780744532) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.