Mark Weidemann, APNP
NPI 1194030981 · Nurse Practitioner · Oshkosh, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Weidemann, APNP is a Nurse Practitioner provider in Oshkosh, WI (NPI 1194030981).
Provider details
- NPI number
- 1194030981
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Male
- Sole proprietor
- No
- License
- 4130 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
54 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 50 Minutes99233 | 18 | $94 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 13 | $91 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 12 | $69 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 11 | $136 |
Typical Medicare-allowed amounts for these services range $69–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 62 | 18 |
| Flecainide Acetate | 46 | 17 |
| Metoprolol Succinate | 46 | 19 |
| Metoprolol Tartrate | 45 | 15 |
| Dofetilide | 42 | 12 |
| Amiodarone Hcl | 31 | 14 |
| Sotalol Hclbrand: Sotalol | 26 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$109 across 1 record (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
- 2010-08-17
- Last updated
- 2025-08-26
- Certified
- 2025-08-26
Frequently asked questions
- What is Mark Weidemann's NPI number?
- Mark Weidemann's National Provider Identifier (NPI) is 1194030981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Weidemann's specialty?
- Mark Weidemann is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Weidemann located?
- Mark Weidemann's practice location on file with NPPES is 855 N Westhaven Dr, Oshkosh, WI 54904-7668.
- What is Mark Weidemann's phone number?
- The practice phone number listed in the NPPES registry for Mark Weidemann is (920) 303-8700.
- Does Mark Weidemann accept Medicare?
- Mark Weidemann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Weidemann's NPI active?
- Yes — Mark Weidemann's NPI (1194030981) is active in the NPPES registry as of the last update on 2025-08-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.