Nathan Wallenfang, NP
NPI 1386090512 · Psychiatric/Mental Health Nurse Practitioner · Marinette, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Wallenfang, NP is a Psychiatric/Mental Health Nurse Practitioner provider in Marinette, WI (NPI 1386090512).
Provider details
- NPI number
- 1386090512
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- 6862 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
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
10 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
188 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 119 | $83 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 37 | $113 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $64 |
Typical Medicare-allowed amounts for these services range $64–$113 (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 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bupropion Hclbrand: Bupropion Xl | 157 | 27 |
| Hydroxyzine Hcl | 149 | 37 |
| Buspirone Hcl | 142 | 29 |
| Lamotrigine | 136 | 27 |
| Trazodone Hcl | 133 | 32 |
| Quetiapine Fumarate | 127 | 20 |
| Gabapentin | 120 | 20 |
Practice location
Mailing address
Additional practice locations (1)
- 5000 Memorial DrTwo Rivers, WI 54241-3900Phone: (920) 794-5000
Registry dates
- Enumerated
- 2016-05-06
- Last updated
- 2026-01-16
- Certified
- 2026-01-16
Frequently asked questions
- What is Nathan Wallenfang's NPI number?
- Nathan Wallenfang's National Provider Identifier (NPI) is 1386090512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Wallenfang's specialty?
- Nathan Wallenfang is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nathan Wallenfang located?
- Nathan Wallenfang's practice location on file with NPPES is 4061 Old Peshtigo Rd, Marinette, WI 54143-3887.
- What is Nathan Wallenfang's phone number?
- The practice phone number listed in the NPPES registry for Nathan Wallenfang is (715) 732-8100.
- Does Nathan Wallenfang accept Medicare?
- Nathan Wallenfang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Wallenfang's NPI active?
- Yes — Nathan Wallenfang's NPI (1386090512) is active in the NPPES registry as of the last update on 2026-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.