Mark a Midthun MD LLC
NPI 1740830512 · Psychiatry Physician · La Crosse, WI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark a Midthun MD LLC is a Psychiatry Physician organization in La Crosse, WI (NPI 1740830512).
Provider details
- NPI number
- 1740830512
- Entity type
- Organization
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Midthun, Psychiatrist(608) 397-5904
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
6 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
- 2019-09-13
- Last updated
- 2020-03-30
- Certified
- 2020-03-30
Frequently asked questions
- What is Mark a Midthun MD LLC's NPI number?
- Mark a Midthun MD LLC's National Provider Identifier (NPI) is 1740830512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark a Midthun MD LLC?
- Mark a Midthun MD LLC is classified in the NPPES registry as Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Mark a Midthun MD LLC located?
- Mark a Midthun MD LLC's practice location on file with NPPES is 3626 East Ave S Ste 2a, La Crosse, WI 54601-7221.
- What is Mark a Midthun MD LLC's phone number?
- The practice phone number listed in the NPPES registry for Mark a Midthun MD LLC is (608) 778-1114.
- Does Mark a Midthun MD LLC accept Medicare?
- Mark a Midthun MD LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mark a Midthun MD LLC?
- The authorized official listed on Mark a Midthun MD LLC's NPPES record is Mark Midthun, Psychiatrist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark a Midthun MD LLC's NPI active?
- Yes — Mark a Midthun MD LLC's NPI (1740830512) is active in the NPPES registry as of the last update on 2020-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.