Katharine Yao, MD
Surgery Physician · Evanston, IL
Katharine Yao, MD is a surgery physician with a practice address in Evanston, Illinois, and NPI 1184698060, issued on Feb 15, 2006. Check the license (Illinois 36095007, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Katharine Yao
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 36095007 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2650 Ridge Ave, Evanston, IL 60201
- Phone
- (847) 570-1327
- Enumerated
- Feb 15, 2006
- Record last updated
- Feb 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (847) 733-3695
- Medicare enrollment
- Enrolled (PECOS I20050816001189); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,520 in Illinois → Look up another NPI →
Also registered at 2650 Ridge Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Katharine Yao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 36095007Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average surgery physician in 2024
19 Medicare Part D claims for 16 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Endeavor Health Medical GroupEvanston, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katharine Yao among 1,520 surgery physician records in Illinois
Katharine Yao, MD is one of 1,520 surgery physician records with a practice address in Illinois. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 64% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1994 · median 2004 among the 650 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Illinois
There are 1,520 surgery physician records in Illinois.
All 1,520 in Illinois → Every provider in Evanston → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Sullivan Ayuso, MDEvanston, IL 602011194220921
- Richard Berk, MDEvanston, IL 602011588731244
- Alison CooganEvanston, IL 602011275160145
- Ervin Denham, MDEvanston, IL 602011881658193
- Lucy Hinton, MDEvanston, IL 602011497620504
- Stephanie Jensen, MDEvanston, IL 602011396321881
- Amna Khokar, MDEvanston, IL 602011316384258
- Katherine Kopkash, M.D.Evanston, IL 602011518123280
Common questions
What is Katharine Yao, MD's NPI number?
Katharine Yao, MD's National Provider Identifier (NPI) is 1184698060, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katharine Yao, MD located?
The NPPES record lists a practice address at 2650 Ridge Ave, Evanston, IL, 60201. Phone: (847) 570-1327. Providers update this record themselves, so call before visiting.
How can I verify Katharine Yao, MD's license?
NPPES lists Illinois license number 36095007, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katharine Yao, MD prescribe under Medicare Part D?
In 2024, Katharine Yao, MD had 19 Medicare Part D claims for 16 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Katharine Yao, MD's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.