KATHERINE LYNN WILHELM DNP, AG-ACNP
NPI 1871227462
Nurse Practitioner in Chicago, IL

Q: What is Katherine Wilhelm's NPI number?

The NPI number for Katherine Wilhelm is 1871227462. It was assigned to this individual provider in the NPPES registry on July 11, 2022.

Q: What is Katherine Wilhelm'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 Katherine Wilhelm was last updated on March 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 11, 2022PECOS EnrolledAccepts Medicare Assignment

676 N SAINT CLAIR ST STE 2140, CHICAGO, IL 60611(312) 695-3800(312) 695-3644 Get Directions Write a Review

NPPES record last updated: March 27, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Mar 27, 2026, Jul 11, 2022 (2 updates tracked since 2022).

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About Katherine Lynn Wilhelm Dnp, Ag-acnp NPPES

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

KATHERINE LYNN WILHELM DNP, AG-ACNP (NPI 1871227462) is an individual nurse practitioner in Chicago, Illinois, licensed in Illinois (209033398) and active in the NPI registry since July 2022. She is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and is a graduate of University Of Kentucky College Of Medicine (2021).

NPPES Registry Identity

NPI1871227462

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameKATHERINE LYNN WILHELMCredential: DNP, AG-ACNP

Location Address676 N SAINT CLAIR ST STE 2140Chicago, IL 60611-3143

Mailing Address676 N Saint Clair St Ste 2140Chicago, IL 60611-3143 · (312) 695-3800 · Fax (312) 695-3644

Phone(312) 695-3800

Fax(312) 695-3644

Sole ProprietorNo

Medical School CMSUniversity Of Kentucky College Of MedicineGraduated 2021

Enumeration DateJuly 11, 2022

Last NPPES UpdateMarch 27, 20262 updates tracked since enumeration

NPPES CertifiedMarch 27, 2026

✔ NPI 1871227462 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 IL · 209033398

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 · Acute CareTaxonomy 363LA2100X · License 95019012 (CA)

676 N SAINT CLAIR ST STE 2140, Chicago, IL 60611

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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

Katherine Lynn Wilhelm Dnp, Ag-acnp 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 ID7618348012

PECOS Enrollment IDI20260211002785

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.

Hospital Affiliations CMS Care Compare

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

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140281

Location251 E Huron StChicago, IL 60611 · Cook County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60611 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

$94.06 typical visit price

range $60.08 – $183.39

Typical copayment $23.51 (range $15.02 – $45.84)

Most-billed visit code 99203

Established Patient

$105.70 typical visit price

range $18.97 – $148.12

Typical copayment $26.42 (range $4.74 – $37.03)

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.

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