Diane Oppeneer, APNP
NPI 1831174143 · Nurse Practitioner · Manitowoc, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Oppeneer, APNP is a Nurse Practitioner provider in Manitowoc, WI (NPI 1831174143).
Provider details
- NPI number
- 1831174143
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Female
- Sole proprietor
- No
- License
- 2302-033 (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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
132 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) |
|---|---|---|
| Administration of Influenza Virus VaccineG0008 | 58 | $30 |
| Admn Sarscov2 Vacc 1 Dose90480 | 43 | $41 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 31 | $9 |
Typical Medicare-allowed amounts for these services range $9–$41 (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 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 165 | 43 |
| Gabapentin | 153 | 30 |
| Omeprazole | 128 | 31 |
| Lisinopril | 122 | 29 |
| Pantoprazole Sodium | 93 | 22 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 91 | 25 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-08
- Last updated
- 2025-10-09
- Certified
- 2025-10-09
Frequently asked questions
- What is Diane Oppeneer's NPI number?
- Diane Oppeneer's National Provider Identifier (NPI) is 1831174143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Oppeneer's specialty?
- Diane Oppeneer is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Diane Oppeneer located?
- Diane Oppeneer's practice location on file with NPPES is 1650 S 41st St, Manitowoc, WI 54220-7316.
- What is Diane Oppeneer's phone number?
- The practice phone number listed in the NPPES registry for Diane Oppeneer is (920) 476-6200.
- Does Diane Oppeneer accept Medicare?
- Diane Oppeneer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Oppeneer's NPI active?
- Yes — Diane Oppeneer's NPI (1831174143) is active in the NPPES registry as of the last update on 2025-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.