Gregory Sobczak, DDS
NPI 1598709032 · General Practice Dentistry · Madison, WI
Enrolled with Medicare as Order and Referring Only - Other (physician) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Sobczak, DDS is a General Practice Dentistry provider in Madison, WI (NPI 1598709032).
Provider details
- NPI number
- 1598709032
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- License
- 3339-015 (WI)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Registry dates
- Enumerated
- 2006-06-15
- Last updated
- 2007-07-09
Frequently asked questions
- What is Gregory Sobczak's NPI number?
- Gregory Sobczak's National Provider Identifier (NPI) is 1598709032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Sobczak's specialty?
- Gregory Sobczak is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Gregory Sobczak located?
- Gregory Sobczak's practice location on file with NPPES is 49 N Walbridge Ave, Madison, WI 53714-3506.
- What is Gregory Sobczak's phone number?
- The practice phone number listed in the NPPES registry for Gregory Sobczak is (608) 246-2555.
- Does Gregory Sobczak accept Medicare?
- Gregory Sobczak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Sobczak's NPI active?
- Yes — Gregory Sobczak's NPI (1598709032) 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.