Quick answers
- Does Marie-Louise Posch accept Medicare assignment?
- Yes. Medicare's clinician data says Marie-Louise Posch accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Marie-Louise Posch see?
- In 2024, CMS data shows 270 Original Medicare patients and 755 services for Marie-Louise Posch. This counts Original Medicare only and measures volume, not quality.
- What is Marie-Louise Posch's NPI number?
- 1891256335. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Marie-Louise Posch, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 270 |
|---|---|
| Services billed to Medicare | 755 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)383 services
- Hospital discharge day management, more than 30 minutes (99239)187 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)134 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)17 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease52%
- Heart failure51%
- Chronic kidney disease50%
Hospitals where Marie-Louise Posch works
Medicare's Facility Affiliation Data lists Marie-Louise Posch at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Essentia HealthFargo, ND · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 350070
- Essentia Health FosstonFosston, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241357
- Essentia Health Holy Trinity HospitalGraceville, MN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 241321
- Essentia Health St Marys - Detroit LakesDetroit Lakes, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 240101
Practice locations
Addresses where Marie-Louise Posch is enrolled with Medicare (CMS data updated October 2, 2026).
- 1027 Washington AveDetroit Lakes, MN 56501 (218) 847‑5611
- 201 9th St WAda, MN 56510
- 201 9th St W, 2 Benedictine Living Community of AdaAda, MN 56510 (218) 784‑5500
- 3000 32nd Ave SFargo, ND 58103 (701) 364‑8000
- 900 Hilligoss Blvd SEFosston, MN 56542 (218) 435‑1133
Group practices
Medicare enrollment lists Marie-Louise Posch as a member of these groups (CMS data updated October 2, 2026).
- Innovis Health LLC559 clinicians in the group
- St Marys Regional Health Center190 clinicians in the group
- Bridges Medical Center22 clinicians in the group
- First Care Medical Services19 clinicians in the group
Specialties
- Hospitalistprimary
Other hospitalists in Detroit Lakes
Clinicians with the same Medicare primary specialty in Detroit Lakes, MN — not a recommendation.
Other clinicians in Innovis Health LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2019 (7 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1891256335 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians