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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

AMY ELIZABETH WILLEN CNM
NPI 1194887356
Advanced Practice Midwife in Oak Park, IL

Active since December 14, 2006PECOS Enrolled
715 LAKE ST, SUITE 273, OAK PARK, IL 60301(708) 848-3800(708) 848-0008 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Amy Elizabeth Willen Cnm NPPES

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

AMY ELIZABETH WILLEN CNM (NPI 1194887356) is an individual advanced practice midwife in Oak Park, Illinois, licensed in Illinois (209.006855) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194887356
Entity TypeIndividualFemale
Primary Taxonomy367A00000X
Provider Legal NameAMY ELIZABETH WILLENCredential: CNM
Location Address715 LAKE ST, SUITE 273Oak Park, IL 60301-1422
Mailing Address3225 W Pierce Ave, #2Chicago, IL 60651-2454 · (713) 569-5997
Phone(708) 848-3800
Fax(708) 848-0008
Sole ProprietorNo
Enumeration DateDecember 14, 2006
Last NPPES UpdateSeptember 29, 2026
✔ NPI 1194887356 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAdvanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367A00000X
Licenses✔ Licensed in IL · 209.006855✔ Licensed in TX · 712808
Definition
Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproductive health; gynecologic health; and family planning services, including preconception care. Midwives also provide primary care for individuals from adolescence throughout the lifespan as well as care for the healthy newborn during the first 28 days of life. Midwives provide initial and ongoing comprehensive assessment, diagnosis, and treatment. Midwifery care includes health promotion, disease prevention, risk assessment and management, and individualized wellness education and counseling. Source: American College of Nurse-Midwives, www.midwife.org Additional Resources: See the American College of Nurse-Midwives, www.midwife.org, for more information on Certified Nurse-Midwives, Certified Midwives, the American Midwifery Certification Board (AMCB), and licensure.
715 LAKE ST, Oak Park, IL 60301
Open in Google Maps ↗

Other Identifiers 1

Medicaid175342802TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware, Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Amy Elizabeth Willen Cnm is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Amy Willen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pcc Community Wellness Center
0.9 mi
Federally Qualified Health Center (FQHC)
14 LAKE ST
Oak Park, IL 60302
  • Reassigned Medicare billing, Illinois enrollment
  • 221 clinicians in this Medicare group
NPI 1871516799 (708) 383-0113
Erie Family Health Center Inc
3.2 mi
Federally Qualified Health Center (FQHC)
4305 W MADISON ST
Chicago, IL 60624
  • Reassigned Medicare billing, Illinois enrollment
  • 383 clinicians in this Medicare group
NPI 1548062318 (312) 666-3494

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60301 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
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
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.

ALEXANDRA SALGADO
Counselor (Mental Health)
715 LAKE ST
OAK PARK, IL 60301
Cook County (773) 312-3612
PETERSONS PERSCRIPTION PHARMACY INC
Pharmacy (Community/Retail Pharmacy)
715 LAKE ST
OAK PARK, IL 60301
Cook County (708) 848-5020
DIALYZE DIRECT IL LLC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
715 LAKE ST
OAK PARK, IL 60301
Cook County (732) 806-9990
WEST SUBURBAN MIDWIFE ASSOC. LTD
Clinic/Center (Family Planning, Non-Surgical)
715 LAKE ST, SUITE 273
OAK PARK, IL 60301
Cook County (708) 848-3800
WEST SUBURBAN MIDWIFE ASSOCIATES, LTD
Advanced Practice Midwife
715 LAKE ST, SUITE 273
OAK PARK, IL 60301
Cook County (708) 848-3800
DR. NATHANIEL LIM DDS
Dentist (General Practice)
715 LAKE ST, SUITE 300
OAK PARK, IL 60301
Cook County (708) 848-8237
MS. JESSICA LEANN MROZ L.C.S.W.
Social Worker (Clinical)
715 LAKE ST, SUITE 720
OAK PARK, IL 60301
Cook County (708) 386-6500
EDWARD DURKIN DN
Naprapath
715 LAKE ST
OAK PARK, IL 60301
Cook County (630) 841-5613

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 Amy Willen's NPI number?

The NPI number for Amy Willen is 1194887356. It was assigned to this individual provider in the NPPES registry on December 14, 2006.

Where is Amy Willen located?

Amy Willen practices at 715 Lake St Suite 273, Oak Park, IL 60301. The listed phone number is (708) 848-3800.

What is Amy Willen's specialty?

The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.

Is Amy Willen enrolled in Medicare?

Yes. Amy Willen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Amy Willen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Amy Willen reassigns Medicare benefits to 2 organizations: Pcc Community Wellness Center (Oak Park, IL) and Erie Family Health Center Inc (Chicago, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Amy Willen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Amy Willen accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Amy Willen 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.

When was this NPI record last updated?

The NPPES record for Amy Willen was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days 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.