Ken Yamaguchi, MD
Orthopaedic Surgery Physician · Chicago, IL
Ken Yamaguchi, MD is an orthopaedic surgery physician with a practice address in Chicago, Illinois, and NPI 1376561001, issued on Jul 18, 2006. Check the license (Illinois 036164044, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ken Yamaguchi
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- 036164044 IL
108927 MO
Self-reported in NPPES; status is on the state search - Practice location
- 259 E Erie St FL 13, Chicago, IL 60611
- Phone
- (312) 695-6800
- Enumerated
- Jul 18, 2006
- Record last updated
- Aug 4, 2023
- Fax
- (312) 926-6600
- Medicaid ID
- 208031807 MO
- Medicare enrollment
- Enrolled (PECOS I20230515000281); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 995 in Illinois → Look up another NPI →
Also registered at 259 E Erie St FL 13
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Bazzetta, PA-CPhysician Assistant1851726004
- Erica Blankemeyer, PA-CPhysician Assistant1386301570
- Joseph Boutet, PA-CPhysician Assistant1033369343
- Lucas Buchler, M.D.Orthopaedic Surgery Physician1528301439
- Bennet ButlerOrthopaedic Trauma Physician1548687635
- Mary-Katherine Butler, PA-CPhysician Assistant1326524729
Verify Ken Yamaguchi 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 036164044Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $304,606.83
15 payments; by number, the most common kind was royalty or license; the largest payer was Zimmer Biomet Holdings, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Chesterton Physical Therapy IncChesterton, IN
- Northwestern Medical Faculty FoundationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ken Yamaguchi among 995 orthopaedic surgery physician records in Illinois
Ken Yamaguchi, MD is one of 995 orthopaedic surgery physician records with a practice address in Illinois. 77% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 49% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1989 · median 2001 among the 556 with a school on file
- Record last updated2023 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Illinois
There are 995 orthopaedic surgery physician records in Illinois.
All 995 in Illinois → Every provider in Chicago → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Proctor Anderson, M.D.Chicago, IL 606111144292681
- John Grayhack, MDChicago, IL 606111043205966
- Stephen Gryzlo, MDChicago, IL 606111588690911
- John Hefferon, M.D.Chicago, IL 606111982677480
- Anish Kadakia, MDChicago, IL 606111467495994
- Armen Kelikian, MDChicago, IL 606111790737757
- Erik King, MDChicago, IL 606111245226893
- Laura Lemke, M.D.Chicago, IL 606111396716080
Common questions
What is Ken Yamaguchi, MD's NPI number?
Ken Yamaguchi, MD's National Provider Identifier (NPI) is 1376561001, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ken Yamaguchi, MD located?
The NPPES record lists a practice address at 259 E Erie St FL 13, Chicago, IL, 60611. Phone: (312) 695-6800. Providers update this record themselves, so call before visiting.
How can I verify Ken Yamaguchi, MD's license?
NPPES lists Illinois license number 036164044, 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.
What is Ken Yamaguchi, MD's MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. 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.