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MARY JOYCE-CAHILL APN-CNP
NPI 1790178671
Nurse Practitioner in Evanston, IL

Active since March 16, 2015PECOS EnrolledAccepts Medicare Assignment
88.26/100
CMS Quality Rating
2650 RIDGE AVE, EVANSTON, IL 60201(847) 503-4222(847) 503-4220 Get Directions Write a Review

NPPES record last updated: August 11, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 11, 2025, Jan 7, 2025 (2 updates tracked since 2025).

About Mary Joyce-cahill Apn-cnp NPPES

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

MARY JOYCE-CAHILL APN-CNP (NPI 1790178671) is an individual nurse practitioner in Evanston, Illinois, licensed in Illinois (209012437) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of University Of Cincinnati College Of Medicine (2014).

NPPES Registry Identity

NPI1790178671
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMARY JOYCE-CAHILLCredential: APN-CNP
Location Address2650 RIDGE AVEEvanston, IL 60201-1700
Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 982-3175 · Fax (847) 982-3394
Phone(847) 503-4222
Fax(847) 503-4220
Sole ProprietorYes
Medical School CMSUniversity Of Cincinnati College Of MedicineGraduated 2014
Enumeration DateMarch 16, 2015
Last NPPES UpdateAugust 11, 20252 updates tracked since enumeration
NPPES CertifiedAugust 11, 2025
✔ NPI 1790178671 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 · 209012437
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 209012437 (IL)
2650 RIDGE AVE, Evanston, IL 60201
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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 Joyce-cahill 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 ID4082933916
PECOS Enrollment IDI20150428000032
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 Joyce-cahill 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
Same address
Anesthesiology
2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
NPI 1265695944 (847) 570-2760
Vpa PC
19 mi
Family Medicine
117W755 BUTTERFIELD ROAD, UNIT 104
Oakbrook Terrace, IL 60181
  • Reassigned Medicare billing, Illinois enrollment
  • 189 clinicians in this Medicare group
NPI 1174925663 (312) 818-4650
Harmonycares Complete Health Services, PLLC
687 mi
Family Medicine
317 E CAPITOL ST STE 200
Jackson, MS 39201
  • Reassigned Medicare billing, Illinois enrollment
  • 37 clinicians in this Medicare group
NPI 1093543902 (855) 396-9643

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 6

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.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
54 services33 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
48 services28 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
36 services34 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
34 services32 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
15 services13 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140010
Location2650 Ridge AveEvanston, IL 60201 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60201 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

88.26/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality72.02
Promoting Interoperability100
Improvement Activities40
Cost57.72

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. THOMAS LEE CIBULL M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Cook County (847) 570-2040
LAUREN ANDERSON MD
Hospitalist
2650 RIDGE AVE
EVANSTON, IL 60201
Cook County (847) 570-1027
DR. DANIEL K. WEST MD
Radiology (Diagnostic Radiology)
2650 RIDGE AVE, DEPARTMENT OF RADIOLOGY, G507
EVANSTON, IL 60201
Cook County (847) 570-2475
JOEL BERNSTEIN M.D.
Radiology (Diagnostic Radiology)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Cook County (847) 570-1206
MATTHEW R. SHERWOOD MD
Internal Medicine
2650 RIDGE AVE, DIVISION OF INTERNAL MEDICINE RM 4324
EVANSTON, IL 60201
Cook County (847) 570-1010
MICHAEL T. GILLAM M.D.
Emergency Medicine
2650 RIDGE AVE, EMERGENCY MEDICINE RM G909
EVANSTON, IL 60201
Cook County (847) 570-2114
MARLENE ANGELICO CNP
Nurse Practitioner (Acute Care)
2650 RIDGE AVE, EMERGENCY MEDICINE, RM G903C
EVANSTON, IL 60201
Cook County (847) 570-1355
MINA KEROLOS MD
Hospitalist
2650 RIDGE AVE
EVANSTON, IL 60201
Cook County (847) 570-1010

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 Joyce-cahill's NPI number?

The NPI number for Mary Joyce-cahill is 1790178671. It was assigned to this individual provider in the NPPES registry on March 16, 2015.

Where is Mary Joyce-cahill located?

Mary Joyce-cahill practices at 2650 Ridge Ave, Evanston, IL 60201. The listed phone number is (847) 503-4222.

What is Mary Joyce-cahill's specialty?

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

Is Mary Joyce-cahill enrolled in Medicare?

Yes. Mary Joyce-cahill 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 Joyce-cahill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Joyce-cahill reassigns Medicare benefits to 3 organizations: Endeavor Health Medical Group (Evanston, IL), Vpa PC (Oakbrook Terrace, IL) and Harmonycares Complete Health Services, PLLC (Jackson, MS). 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 Joyce-cahill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Mary Joyce-cahill affiliated with any hospitals?

According to CMS data, Mary Joyce-cahill is affiliated with Northshore University Healthsystem - Evanston Hospital.

When was this NPI record last updated?

The NPPES record for Mary Joyce-cahill was last updated on August 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.