KATHARINE YAO MD
NPI 1184698060
Surgery in Evanston, IL

Active since February 15, 2006PECOS EnrolledAccepts Medicare Assignment
93.08/100
CMS Quality Rating
2650 RIDGE AVE, NORTHSHORE UNIVERSITY HEALTH SYSTEM, EVANSTON, IL 60201(847) 570-1327(847) 733-3695 Get Directions Write a Review

NPPES record last updated: February 11, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Katharine Yao Md NPPES

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

KATHARINE YAO MD (NPI 1184698060) is an individual surgery provider in Evanston, Illinois, licensed in Illinois (36095007) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1184698060
Entity TypeIndividualFemale
Primary Taxonomy208600000X
Provider Legal NameKATHARINE YAOCredential: MD
Location Address2650 RIDGE AVE, NORTHSHORE UNIVERSITY HEALTH SYSTEMEvanston, IL 60201-1718
Mailing Address2650 Ridge Ave., Northshore University Health SystemEvanston, IL 60201-1718 · (847) 570-1327 · Fax (847) 733-3695
Fax(847) 733-3695
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateFebruary 15, 2006
Last NPPES UpdateFebruary 11, 2021
NPPES CertifiedFebruary 11, 2021
NPI 1184698060 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License Licensed in IL · 36095007
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
2650 RIDGE AVE, Evanston, IL 60201

Other Names 1

Other Name (5)Mrs. Kathy Perry

Accepted Insurance

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

Katharine Yao Md 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 ID42240343
PECOS Enrollment IDI20050816001189
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.

Areas of Expertise CMS Part B claims 9

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.
319 services285 patients
Partial removal of breast 19301
A partial removal of the breast, also known as a lumpectomy, involves taking out a portion of the breast tissue to eliminate concerning cells. It's typically performed when the problem area is limited in size. This procedure helps to preserve most of the breast's appearance while aiming to remove all the unhealthy cells.
52 services51 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
52 services52 patients
Biopsy or removal of deep lymph nodes of underarm 38525
A biopsy or removal of deep underarm lymph nodes is a procedure where a small sample of lymph node tissue is taken for testing. This helps in diagnosing or ruling out conditions like infections or cancers. It involves a small incision and is typically done under local or general anesthesia.
22 services22 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
21 services21 patients
Imaging of lymph nodes during surgery 38900
Imaging of lymph nodes during surgery involves taking detailed pictures of your lymph nodes to help surgeons see and assess them in real-time. This procedure can aid in detecting disease, guiding treatment, and improving surgical precision.
20 services20 patients

Hospital Affiliations CMS Care Compare 2

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

Swedish Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140114
Location5145 N California AveChicago, IL 60625 · 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
$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.

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.

93.08/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.79
Promoting Interoperability100
Improvement Activities40

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.

Pathology (Anatomic Pathology & Clinical Pathology)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Radiology (Diagnostic Radiology)
2650 RIDGE AVE, DEPARTMENT OF RADIOLOGY, G507
EVANSTON, IL 60201
Radiology (Diagnostic Radiology)
2650 RIDGE AVE, EVANSTON HOSPITAL
EVANSTON, IL 60201
Internal Medicine
2650 RIDGE AVE, DIVISION OF INTERNAL MEDICINE RM 4324
EVANSTON, IL 60201
Emergency Medicine
2650 RIDGE AVE, EMERGENCY MEDICINE RM G909
EVANSTON, IL 60201
Nurse Practitioner (Acute Care)
2650 RIDGE AVE, EMERGENCY MEDICINE, RM G903C
EVANSTON, IL 60201
Pediatrics
2650 RIDGE AVE
EVANSTON, IL 60201
Obstetrics & Gynecology
2650 RIDGE AVE
EVANSTON, IL 60201

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 Katharine Yao's NPI number?

The NPI number for Katharine Yao is 1184698060. It was assigned to this individual provider in the NPPES registry on February 15, 2006. The provider is also known as Mrs. Kathy Perry.

Where is Katharine Yao located?

Katharine Yao practices at 2650 Ridge Ave Northshore University Health System, Evanston, IL 60201. The listed phone number is (847) 570-1327.

What is Katharine Yao's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Katharine Yao enrolled in Medicare?

Yes. Katharine Yao 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.

What insurance does Katharine Yao accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Katharine Yao 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.

Is Katharine Yao affiliated with any hospitals?

According to CMS data, Katharine Yao is affiliated with Northshore University Healthsystem - Evanston Hospital and Swedish Hospital.

When was this NPI record last updated?

The NPPES record for Katharine Yao was last updated on February 11, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.