Peter Niemann, M.D.
NPI 1669602918 · Internal Medicine Physician · La Crosse, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Niemann, M.D. is a Internal Medicine Physician provider in La Crosse, WI (NPI 1669602918).
Provider details
- NPI number
- 1669602918
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 21685 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
668 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 298 | $74 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 80 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 79 | $111 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 60 | $163 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 55 | $71 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 53 | — |
| Clopidogrel Bisulfatebrand: Clopidogrel | 36 | — |
| Lisinopril | 30 | — |
| Carbamazepine | 26 | — |
| Pantoprazole Sodium | 26 | — |
| Cefdinir | 25 | 25 |
| Levothyroxine Sodium | 25 |
Practice location
Mailing address
Additional practice locations (1)
- 801 Broadway NFargo, ND 58102-3641Phone: (701) 234-2731
Registry dates
- Enumerated
- 2009-07-21
- Last updated
- 2022-07-21
Frequently asked questions
- What is Peter Niemann's NPI number?
- Peter Niemann's National Provider Identifier (NPI) is 1669602918, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Niemann's specialty?
- Peter Niemann is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Niemann located?
- Peter Niemann's practice location on file with NPPES is 700 West Ave S, La Crosse, WI 54601-4783.
- What is Peter Niemann's phone number?
- The practice phone number listed in the NPPES registry for Peter Niemann is (608) 785-0940.
- Does Peter Niemann accept Medicare?
- Peter Niemann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Niemann's NPI active?
- Yes — Peter Niemann's NPI (1669602918) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.