Vivian Dehahn, APNP
NPI 1538154539 · Nurse Practitioner · East Troy, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivian Dehahn, APNP is a Nurse Practitioner provider in East Troy, WI (NPI 1538154539).
Provider details
- NPI number
- 1538154539
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 88058-030 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service 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
49 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 36 | $73 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 13 | $89 |
Typical Medicare-allowed amounts for these services range $73–$89 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-15
- Last updated
- 2021-11-30
- Certified
- 2021-11-30
Frequently asked questions
- What is Vivian Dehahn's NPI number?
- Vivian Dehahn's National Provider Identifier (NPI) is 1538154539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Dehahn's specialty?
- Vivian Dehahn is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Vivian Dehahn located?
- Vivian Dehahn's practice location on file with NPPES is 33300 Cayuga Way, East Troy, WI 53120-9633.
- What is Vivian Dehahn's phone number?
- The practice phone number listed in the NPPES registry for Vivian Dehahn is (262) 210-0563.
- Does Vivian Dehahn accept Medicare?
- Vivian Dehahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivian Dehahn's NPI active?
- Yes — Vivian Dehahn's NPI (1538154539) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.