1. Home
  2. Directory
  3. Illinois
  4. Chicago
  5. Physician Assistant
  6. NPI Profile

MARY KATHRYN SCHAEFER PA-C
NPI 1598864159
Physician Assistant in Chicago, IL

Active since September 21, 2006PECOS Enrolled
675 N SAINT CLAIR ST STE 21-100, CHICAGO, IL 60611(312) 695-0990(312) 695-1106 Get Directions Write a Review

NPPES record last updated: January 17, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 17, 2022, Mar 12, 2020 (2 updates tracked since 2020).

About Mary Kathryn Schaefer Pa-c NPPES

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

MARY KATHRYN SCHAEFER PA-C (NPI 1598864159) is an individual physician assistant in Chicago, Illinois, licensed in Illinois (085002492) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1598864159
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMARY KATHRYN SCHAEFERCredential: PA-C
Location Address675 N SAINT CLAIR ST STE 21-100Chicago, IL 60611-5970
Mailing Address675 N Saint Clair St Ste 21-100Chicago, IL 60611-5970 · (312) 695-0990 · Fax (312) 695-1106
Phone(312) 695-0990
Fax(312) 695-1106
Sole ProprietorNo
Enumeration DateSeptember 21, 2006
Last NPPES UpdateJanuary 17, 20222 updates tracked since enumeration
NPPES CertifiedJanuary 17, 2022
✔ NPI 1598864159 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in IL · 085002492
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 085-002492 (IL)
675 N SAINT CLAIR ST STE 21-100, Chicago, IL 60611
Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Kathryn Schaefer Pa-c 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.

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
$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.

KANITHRA C SEKARAN
Hospitalist
675 N SAINT CLAIR ST STE 21-100
CHICAGO, IL 60611
Cook County (312) 695-0990
ADAM MENDEL SONABEND WORTHALTER M.D.
Neurological Surgery
675 N SAINT CLAIR ST STE 21-100
CHICAGO, IL 60611
Cook County (312) 695-0990
MARY REHER MS, RDN, CSO, LDN
Dietitian, Registered
675 N SAINT CLAIR ST STE 21-100
CHICAGO, IL 60611
Cook County (312) 695-9197
YASMIN ABAZA M.D.
Internal Medicine (Hematology & Oncology)
675 N SAINT CLAIR ST STE 21-100
CHICAGO, IL 60611
Cook County (312) 695-0990
RACHEL SHAPIRA SCM, LCGC
Genetic Counselor, MS
675 N SAINT CLAIR ST STE 21-100
CHICAGO, IL 60611
Cook County (312) 695-0320
LAURA CAMPA APRN, CNP
Nurse Practitioner
675 N SAINT CLAIR ST STE 21-100
CHICAGO, IL 60611
Cook County (312) 695-0990
JOHN TYLER COLE PA-C
Physician Assistant
675 N SAINT CLAIR ST STE 21-100
CHICAGO, IL 60611
Cook County (312) 695-0990
MRS. HAYLEY RENEE CASSINGHAM MS
Genetic Counselor, MS
675 N SAINT CLAIR ST STE 21-100
CHICAGO, IL 60611
Cook County (312) 695-0320

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 Schaefer's NPI number?

The NPI number for Mary Schaefer is 1598864159. It was assigned to this individual provider in the NPPES registry on September 21, 2006.

Where is Mary Schaefer located?

Mary Schaefer practices at 675 N Saint Clair St Ste 21-100, Chicago, IL 60611. The listed phone number is (312) 695-0990.

What is Mary Schaefer's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Mary Schaefer enrolled in Medicare?

Yes. Mary Schaefer is registered in the Medicare PECOS enrollment system.

What insurance does Mary Schaefer accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Mary Schaefer 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 Mary Schaefer was last updated on January 17, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.