Mark Wittchow, DMD
NPI 1083175087 · Orthodontics and Dentofacial Orthopedics Dentistry · La Crosse, WI
Enrolled with Medicare as Practitioner - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Wittchow, DMD is a Orthodontics and Dentofacial Orthopedics Dentistry provider in La Crosse, WI (NPI 1083175087).
Provider details
- NPI number
- 1083175087
- Entity type
- Individual
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Credential
- DMD
- Sex
- Male
- Sole proprietor
- No
- License
- DDS-09955 (IA)
Specialties & taxonomies
Dental Providers
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$194 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-31
- Last updated
- 2023-09-15
- Certified
- 2023-09-15
Frequently asked questions
- What is Mark Wittchow's NPI number?
- Mark Wittchow's National Provider Identifier (NPI) is 1083175087, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Wittchow's specialty?
- Mark Wittchow is listed in the NPPES registry with a primary specialty of Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is Mark Wittchow located?
- Mark Wittchow's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is Mark Wittchow's phone number?
- The practice phone number listed in the NPPES registry for Mark Wittchow is (608) 782-7300.
- Does Mark Wittchow accept Medicare?
- Mark Wittchow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Wittchow's NPI active?
- Yes — Mark Wittchow's NPI (1083175087) is active in the NPPES registry as of the last update on 2023-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.