Doctor profile · Federal record

Dr. Ken Yamaguchi, MD

Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Orthopaedic Surgery Physician · Chicago, IL

  • NPI 1376561001
  • Accepts Medicare
  • MIPS 79.3 / 100 · 2023
  • 37 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
259 E Erie St Fl 13
Chicago, IL 606113926
(312) 695-6800
fax (312) 926-6600
Additional location
1 Barnes Jewish Hospital Plz, Div Ortho Surg Adult Reconstructive Surg
Saint Louis, MO 631101003
(314) 747-2551
fax (314) 747-2598

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
August 4, 2023
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
207X00000X — NUCC code
State licenses (2)
Illinois #036164044 · Missouri #108927
Medicaid
MO #208031807

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376561001. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
103
Distinct HCPCS
4
Medicare allowed
$9,575
HCPCS Description Services Patients Avg allowed
73030 X-ray of shoulder, minimum of 2 views 40 28 $37
99213 Established patient office or other outpatient visit, 20-29 minutes 25 24 $93
99204 New patient office or other outpatient visit, 45-59 minutes 21 21 $178
99203 New patient office or other outpatient visit, 30-44 minutes 17 17 $119

In context: peer comparison

Among 32 peers in this city , average services per provider: 90. This provider delivers 1.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$304,607
Transactions
15
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Zimmer Biomet Holdings, Inc. 14 $304,459.35
MEDACTA USA, INC. 1 $147.48

By nature of payment

Royalty or License
$301,709
Consulting Fee
$2,750
Food and Beverage
$147

Frequently asked questions

Auto-generated from federal data
What is Dr. Ken Yamaguchi's medical specialty?
Dr. Ken Yamaguchi practices Orthopaedic Surgery Physician in Chicago, IL.
Where does Dr. Ken Yamaguchi practice?
Dr. Ken Yamaguchi practices at 259 E Erie St Fl 13, Chicago, IL 606113926. Office phone: 3126956800.
What is Dr. Ken Yamaguchi's NPI?
Dr. Ken Yamaguchi's National Provider Identifier (NPI) is 1376561001, issued by NPPES.
Does Dr. Ken Yamaguchi accept Medicare assignment?
Yes. Dr. Ken Yamaguchi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ken Yamaguchi commonly perform?
Top Medicare-reported procedures in 2023: X-ray of shoulder, minimum of 2 views (HCPCS 73030); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.