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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.

MARY CATHERINE DEVITT ZADEIK APN-CNP
NPI 1790267466
Nurse Practitioner - Family in Chicago, IL

Active since August 30, 2018PECOS Enrolled
1749 N WELLS ST, CHICAGO, IL 60614(312) 440-9646 Get Directions Write a Review

NPPES record last updated: October 28, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 28, 2026, Oct 21, 2021, Nov 15, 2018 and 1 more (4 updates tracked since 2018).

About Mary Catherine Devitt Zadeik Apn-cnp NPPES

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

MARY CATHERINE DEVITT ZADEIK APN-CNP (NPI 1790267466) is an individual family provider in Chicago, Illinois, licensed in Illinois (209.017486) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS, is affiliated with Osf Little Company Of Mary Medical Center, and is a graduate of Georgetown University School Of Medicine (2017).

NPPES Registry Identity

NPI1790267466
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARY CATHERINE DEVITT ZADEIKCredential: APN-CNP
Location Address1749 N WELLS STChicago, IL 60614
Mailing Address1749 N Wells StChicago, IL 60614 · (312) 440-9646
Phone(312) 440-9646
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 2017
Enumeration DateAugust 30, 2018
Last NPPES UpdateOctober 28, 20264 updates tracked since enumeration
NPPES CertifiedOctober 28, 2026
✔ NPI 1790267466 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in IL · 209.017486
1749 N WELLS ST, Chicago, IL 60614
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Catherine Devitt Zadeik Apn-cnp 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 ID7315282324
PECOS Enrollment IDI20181219002891
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

3

Medicare enrollment records show Mary Catherine Devitt Zadeik reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Endeavor Health Medical Group
11 mi
Allergy & Immunology
1000 CENTRAL ST
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
NPI 1497701882 (847) 570-5235
Midwest Anesthesia And Pain Specialists, Sc
15 mi
Interventional Pain Medicine
9700 GOLF RD, SECOND FLOOR
Des Plaines, IL 60016
  • Reassigned Medicare billing, Illinois enrollment
  • 14 clinicians in this Medicare group
NPI 1558773754 (847) 348-8250
Clear Practice PLLC
269 mi
Clinic/Center
522 N NEW BALLAS RD STE 347
Creve Coeur, MO 63141
  • Reassigned Medicare billing, Illinois enrollment
  • 29 clinicians in this Medicare group
NPI 1386498319 (855) 229-2177

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

Areas of Expertise CMS Part B claims 2

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 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.
154 services73 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
16 services11 patients

Hospital Affiliations CMS Care Compare

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

Osf Little Company Of Mary Medical Center

Acute Care Hospitals · Evergreen Park, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140179
Location2800 W 95th StEvergreen Park, IL 60805 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60614 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 18

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

PAULINA VIVANCO COTA/L
Occupational Therapy Assistant
1749 N WELLS ST
CHICAGO, IL 60614
Cook County (312) 440-9646
DAVID H BAUKOL DDS PC
Dentist (General Practice)
1749 N WELLS ST
CHICAGO, IL 60614
Cook County (312) 280-7700
DR. STEVEN ARCULEO D.C.
Chiropractor
1749 N WELLS ST
CHICAGO, IL 60614
Cook County (312) 440-9646
VICTORIA LEEANN MUNSON OT
Occupational Therapist (Physical Rehabilitation)
1749 N WELLS ST
CHICAGO, IL 60614
Cook County (312) 440-9646
SARI RACHEL HELLER DC
Chiropractor
1749 N WELLS ST
CHICAGO, IL 60614
Cook County (312) 440-9646
DAVID H BAUKOL D.D.S.
Dentist (General Practice)
1749 N WELLS ST
CHICAGO, IL 60614
Cook County (312) 280-7700
EVAN SOUTTER DC
Chiropractor
1749 N WELLS ST
CHICAGO, IL 60614
Cook County (312) 440-9646
DAKOTA QUENTIN HOULIHAN
Occupational Therapy Assistant
1749 N WELLS ST
CHICAGO, IL 60614
Cook County (312) 440-9646

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 Mary Catherine Devitt Zadeik's NPI number?

The NPI number for Mary Catherine Devitt Zadeik is 1790267466. It was assigned to this individual provider in the NPPES registry on August 30, 2018.

Where is Mary Catherine Devitt Zadeik located?

Mary Catherine Devitt Zadeik practices at 1749 N Wells St, Chicago, IL 60614. The listed phone number is (312) 440-9646.

What is Mary Catherine Devitt Zadeik's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Mary Catherine Devitt Zadeik enrolled in Medicare?

Yes. Mary Catherine Devitt Zadeik 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.

Which organizations bill Medicare for Mary Catherine Devitt Zadeik's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Catherine Devitt Zadeik reassigns Medicare benefits to 3 organizations: Endeavor Health Medical Group (Evanston, IL), Midwest Anesthesia And Pain Specialists, Sc (Des Plaines, IL) and Clear Practice PLLC (Creve Coeur, MO). 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 Mary Catherine Devitt Zadeik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mary Catherine Devitt Zadeik affiliated with any hospitals?

According to CMS data, Mary Catherine Devitt Zadeik is affiliated with Osf Little Company Of Mary Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Catherine Devitt Zadeik was last updated on October 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.