DIANE SUE WILKEN FNP-C
NPI 1245802032
Nurse Practitioner in Eau Claire, WI

Q: What is Diane Wilken's NPI number?

The NPI number for Diane Wilken is 1245802032. It was assigned to this individual provider in the NPPES registry on July 12, 2021.

Q: What is Diane Wilken's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Diane Wilken was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 12, 2021PECOS EnrolledAccepts Medicare Assignment

733 W CLAIREMONT AVE, EAU CLAIRE, WI 54701(715) 838-5340 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Feb 4, 2026, Aug 2, 2021, Jul 12, 2021 (3 updates tracked since 2021).

On this page

About Diane Sue Wilken Fnp-c NPPES

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

DIANE SUE WILKEN FNP-C (NPI 1245802032) is an individual nurse practitioner in Eau Claire, Wisconsin, licensed in Wisconsin (11077-33) and active in the NPI registry since July 2021. She is enrolled in Medicare PECOS, is affiliated with Monument Health Custer Hospital, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1245802032

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameDIANE SUE WILKENCredential: FNP-C

Location Address733 W CLAIREMONT AVEEau Claire, WI 54701-6117

Mailing Address200 1st St SwRochester, MN 55905-0002 · (715) 838-5222

Phone(715) 838-5340

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateJuly 12, 2021

Last NPPES UpdateFebruary 4, 20263 updates tracked since enumeration

NPPES CertifiedFebruary 4, 2026

✔ NPI 1245802032 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in WI · 11077-33

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 11077-33 (WI)

733 W CLAIREMONT AVE, Eau Claire, WI 54701

Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Insurance Company, Sanford Health Plan.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

Diane Sue Wilken Fnp-c 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 ID5193129146

PECOS Enrollment IDI20250909004842

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 4

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.

86 services86 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.

81 services79 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.

56 services55 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

13 services13 patients

Hospital Affiliations CMS Care Compare

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

Monument Health Custer Hospital

Critical Access Hospitals · Custer, SD

OwnershipVoluntary non-profit - Private

CMS Certification Number431323

Location1220 Montgomery StreetCuster, SD 57730 · Custer County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54701 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.

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.

KRISTI K FECIK PHARM D

Pharmacist

733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701

Eau Claire County (715) 838-5000

HOPE C. ST JEAN CNP

Nurse Practitioner

733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701

Eau Claire County (715) 838-3311

ANDREW E FLOREN MD

Preventive Medicine (Occupational Medicine)

733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701

Eau Claire County (715) 838-5222

NAMRATA MEHTA MD

Family Medicine

733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701

Eau Claire County (715) 838-5222

NOEL ELIZABETH KROEPLIN PA-C

Physician Assistant

733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701

Eau Claire County (715) 838-5222

MAYO CLINIC HEALTH SYSTEM - PHARMACY & HOME MEDICAL, INC

Durable Medical Equipment & Medical Supplies

733 W CLAIREMONT AVE, SUITE PHM # 1
EAU CLAIRE, WI 54701

Eau Claire County (715) 838-5000

MARK ALAN SWANSON APRN-FNP

Nurse Practitioner

733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701

Eau Claire County (715) 838-5222

JEFFREY J GROSHENS MD

Family Medicine

733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701

Eau Claire County (715) 838-5222

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diane Wilken's NPI number?

The NPI number for Diane Wilken is 1245802032. It was assigned to this individual provider in the NPPES registry on July 12, 2021.

Where is Diane Wilken located?

Diane Wilken practices at 733 W Clairemont Ave, Eau Claire, WI 54701. The listed phone number is (715) 838-5340.

What is Diane Wilken's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Diane Wilken enrolled in Medicare?

Yes. Diane Wilken is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Diane Wilken accept?

Health plans from Oscar Insurance Company and Sanford Health Plan list Diane Wilken as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Diane Wilken affiliated with any hospitals?

According to CMS data, Diane Wilken is affiliated with Monument Health Custer Hospital.

When was this NPI record last updated?

The NPPES record for Diane Wilken was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.