Katharine Yao, MD
NPI 1184698060 · Surgery Physician · Evanston, IL
Enrolled with Medicare as Practitioner - Surgical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Yao, MD is a Surgery Physician provider in Evanston, IL (NPI 1184698060).
Provider details
- NPI number
- 1184698060
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 36095007 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
556 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 319 | $70 |
| Partial Removal of Breast19301 | 52 | $760 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 52 | $194 |
| Biopsy Or Removal of Deep Lymph Nodes of Underarm38525 | 22 | $276 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 21 | $88 |
| Imaging of Lymph Nodes During Surgery38900 | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-15
- Last updated
- 2021-02-11
- Certified
- 2021-02-11
Frequently asked questions
- What is Katharine Yao's NPI number?
- Katharine Yao's National Provider Identifier (NPI) is 1184698060, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Yao's specialty?
- Katharine Yao is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Katharine Yao located?
- Katharine Yao's practice location on file with NPPES is 2650 Ridge Ave, Evanston, IL 60201-1718.
- What is Katharine Yao's phone number?
- The practice phone number listed in the NPPES registry for Katharine Yao is (847) 570-1327.
- Does Katharine Yao accept Medicare?
- Katharine Yao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Yao's NPI active?
- Yes — Katharine Yao's NPI (1184698060) is active in the NPPES registry as of the last update on 2021-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.