NATHAN WALLENFANG NP
NPI 1386090512
Nurse Practitioner - Psychiatric/Mental Health in Marinette, WI

Q: What is Nathan Wallenfang's NPI number?

The NPI number for Nathan Wallenfang is 1386090512. It was assigned to this individual provider in the NPPES registry on May 6, 2016.

Q: What is Nathan Wallenfang's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Nathan Wallenfang was last updated on January 16, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since May 06, 2016PECOS EnrolledAccepts Medicare Assignment

4061 OLD PESHTIGO RD, MARINETTE, WI 54143(715) 732-8100(715) 732-8007 Get Directions Write a Review

NPPES record last updated: January 16, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 16, 2026, Dec 6, 2021, Mar 23, 2021 and 1 more (4 updates tracked since 2021).

On this page

About Nathan Wallenfang Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NATHAN WALLENFANG NP (NPI 1386090512) is an individual psychiatric/mental health provider in Marinette, Wisconsin, licensed in Wisconsin (6862) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Bay Area Medical Center, and maintains a secondary practice location in Two Rivers.

NPPES Registry Identity

NPI1386090512

Entity TypeIndividualMale

Primary Taxonomy363LP0808X

Provider Legal NameNATHAN WALLENFANGCredential: NP

Location Address4061 OLD PESHTIGO RDMarinette, WI 54143-3887

Mailing AddressPo Box 735044Chicago, IL 60673-5044 · (800) 326-2250

Phone(715) 732-8100

Fax(715) 732-8007

Sole ProprietorNo

Medical School CMSOtherGraduated 2015

Enumeration DateMay 6, 2016

Last NPPES UpdateJanuary 16, 20264 updates tracked since enumeration

NPPES CertifiedJanuary 16, 2026

✔ NPI 1386090512 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in WI · 6862

Also ListedNurse PractitionerTaxonomy 363L00000X · License 6862 (WI), 209-020256 (IL)

4061 OLD PESHTIGO RD, Marinette, WI 54143

Open in Google Maps ↗

Secondary Practice Location 1

Location 15000 Memorial DrTwo Rivers, WI 54241-3900 · Phone (920) 794-5000

Other Identifiers 2

Medicaid100059198WI

Medicaid100159456WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), HealthPartners and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nathan Wallenfang Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2062706757

PECOS Enrollment IDI20160803000675, I20211029000296

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

119 services50 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

37 services23 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

32 services27 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Bay Area Medical Center

Acute Care Hospitals · Marinette, WI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number520113

Location3003 University DrMarinette, WI 54143 · Marinette County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$82.92 typical visit price

range $53.90 – $163.24

Typical copayment $20.73 (range $13.47 – $40.81)

Most-billed visit code 99203

Established Patient

$95.41 typical visit price

range $17.40 – $133.76

Typical copayment $23.85 (range $4.35 – $33.44)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier11 claims11 services$108.78 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Leave this field empty

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOHN F NIELSEN M.D.

Family Medicine