Mark Schaten
NPI 1356458632 · Internal Medicine Physician · Delafield, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Schaten is a Internal Medicine Physician provider in Delafield, WI (NPI 1356458632).
Provider details
- NPI number
- 1356458632
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 43023 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-24
- Last updated
- 2021-05-24
Frequently asked questions
- What is Mark Schaten's NPI number?
- Mark Schaten's National Provider Identifier (NPI) is 1356458632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Schaten's specialty?
- Mark Schaten is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Schaten located?
- Mark Schaten's practice location on file with NPPES is S4w31227 Hidden Holw, Delafield, WI 53018-3264.
- What is Mark Schaten's phone number?
- The practice phone number listed in the NPPES registry for Mark Schaten is (920) 948-9301.
- Does Mark Schaten accept Medicare?
- Mark Schaten is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Schaten's NPI active?
- Yes — Mark Schaten's NPI (1356458632) is active in the NPPES registry as of the last update on 2021-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.