Active NPI 1376561001 Individual Practitioner Male Practitioner

Dr. Ken Yamaguchi , MD

Orthopaedic Surgery • Chicago, IL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Ken Yamaguchi, MD is a certified Orthopaedic Surgery practicing in Chicago, IL. With approximately 37 years of clinical experience since graduating from George Washington University School Of Medicine in 1989, Dr. Yamaguchi delivers high-quality medical care to the local community at 259 E ERIE ST FL 13.

Dr. Yamaguchi maintains professional affiliations with Northwestern Medical Faculty Foundation, Chesterton Physical Therapy Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include x-ray of shoulder, minimum of 2 views, established patient outpatient office visit, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

259 E Erie St Fl 13

Chicago, IL 606113926

Telephone 3126956800

Fax 3129266600

Associated Practice Facility / Clinic

🏢 Northwestern Medical Faculty Foundation Facility NPI 1275759789

Medicare Profile & Education

Medical School

George Washington University School Of Medicine

Graduation Year

1989

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Orthopaedic Surgery in Chicago, IL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

37 Yrs +15.4 yrs vs City Avg

City Avg: 21.6 Yrs

State Avg: 27.0 Yrs

Regional Practice Density

290 Specialists

Practicing in Chicago, IL (1064 Statewide)

Telehealth Adoption Rate

5.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

80.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Yamaguchi (37 Years) 37 Yrs

Chicago Specialty Average (21.6 Years) 21.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
73030 X-ray of shoulder, minimum of 2 views	95	57	$175.24	$34.83
99213 Established patient office or other outpatient visit, typically 15 minutes	49	40	$219.00	$91.84
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	40	40	$330.00	$111.86
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	13	13	$323.00	$132.09
23472 Prosthetic repair of shoulder joint, total shoulder	12	12	$8889.00	$1577.03

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
73030 X-ray of shoulder, minimum of 2 views	40	28	$178.00	$36.95
99213 Established patient office or other outpatient visit, typically 15 minutes	25	24	$191.40	$93.29
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	21	21	$505.00	$178.22
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$320.29	$118.98

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	109	86	$150.00	$90.87
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	41	41	$275.00	$110.33
23472 Prosthetic repair of shoulder joint, total shoulder	34	33	$7366.00	$1459.87
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	13	13	$115.00	$56.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	112	94	$147.05	$90.99
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	51	51	$269.31	$110.46
23472 Prosthetic repair of shoulder joint, total shoulder	34	34	$7366.00	$1474.83
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	18	16	$111.67	$56.50

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	80	61	$145.00	$75.15
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	38	38	$265.00	$108.48
23472 Prosthetic repair of shoulder joint, total shoulder	31	31	$7366.00	$1502.34
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	24	21	$105.00	$45.71

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	106	88	$141.77	$72.05
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	39	39	$252.79	$103.03
23472 Prosthetic repair of shoulder joint, total shoulder	24	24	$7366.00	$1492.09
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	11	$104.42	$44.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	90	69	$132.00	$71.26
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	45	45	$198.00	$106.40
23472 Prosthetic repair of shoulder joint, total shoulder	20	20	$7366.00	$1473.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	86	68	$132.00	$71.48
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	43	43	$198.00	$105.87
23472 Prosthetic repair of shoulder joint, total shoulder	22	20	$7366.00	$1431.52

Medical Specialties & State Licenses

CMS Verified: 2023-08-04

Orthopaedic Surgery Primary Specialty

NUCC Taxonomy Code: 207X00000X

State License IL 036164044

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Orthopaedic Surgery

NUCC Taxonomy Code: 207X00000X

State License MO 108927

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

208031807 (MO)

Hospital & Practice Group Affiliations

Northwestern Medical Faculty Foundation

259 E Erie St, Chicago, IL 606112930

Phone: 3125031944

Northwestern Medical Faculty Foundation

675 N Saint Clair St, Chicago, IL 606115975

Chesterton Physical Therapy Inc

425 Sand Creek Dr, Chesterton, IN 463041589

Chesterton Physical Therapy Inc

425 Sand Creek Dr, Chesterton, IN 463041589

Northwestern Medical Faculty Foundation

675 N St Clair, Chicago, IL 606115975

Secondary Practice Locations

1 Barnes Jewish Hospital Plz, Div Ortho Surg Adult Reconstructive Surg

Saint Louis, MO 631101003

Phone: 3147472551

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners

Jeremy Larva , PA-C

Physician Assistant

NPI 1003021916

Physician Assistant (Certified)

Dr. Vehniah Tjong , MD

Orthopaedic Surgery - Sports Medicine

NPI 1003201419

Doctor of Medicine (M.D.)

Dr. Julianna Roth , MD

Internal Medicine

NPI 1003831744

Doctor of Medicine (M.D.)

Katherine Mccrossen

Physician Assistant

NPI 1013446731

Dr. Guido Marra , MD

Orthopaedic Surgery

NPI 1023082328

Doctor of Medicine (M.D.)

Dr. Michael Stover , MD

Orthopaedic Surgery

NPI 1033183363

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

15 Historical Events

📍

Updated Practice Location August 04, 2023

Registered at 259 E ERIE ST FL 13, CHICAGO, IL 606113926 (Tel: 3126956800)

📍

Updated Business Mailing Address August 04, 2023

Registered at 259 E ERIE ST FL 13, CHICAGO, IL 606113926 (Tel: 3126956800)

📍

Updated Practice Location November 12, 2021

Registered at 1 BARNES JEWISH HOSPITAL PLZ, DIV ORTHO SURG ADULT RECONSTRUCTIVE SURG, SAINT LOUIS, MO 631101003 (Tel: 3147472551)

📍

Updated Business Mailing Address November 12, 2021

Registered at 660 S EUCLID AVE, CB 8233, SAINT LOUIS, MO 631101010 (Tel: 3147472500)

✅

NPI Profile Active January 29, 2018

NPI status registered as active in NPPES database

📍

Updated Practice Location January 29, 2018

Registered at 1 BARNES JEWISH HOSPITAL PLZ, SAINT LOUIS, MO 631101003 (Tel: 3147472500)

📍

Updated Business Mailing Address January 29, 2018

Registered at 660 S EUCLID AVE, C B 8233, SAINT LOUIS, MO 631101010 (Tel: 3147472500)

👤

Provider Name / Credentials Updated January 29, 2018

Recorded as KEN YAMAGUCHI, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 29, 2018

Orthopaedic Surgery (License #108927 in MO)

✅

NPI Profile Active November 14, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location November 14, 2016

Registered at 1 BARNES JEWISH HOSPITAL PLZ, SAINT LOUIS, MO 631101003 (Tel: 3147472500)

📍

Updated Business Mailing Address November 14, 2016

Registered at 660 S EUCLID AVE, C B 8233, SAINT LOUIS, MO 631101010 (Tel: 3147472500)

👤

Provider Name / Credentials Updated November 14, 2016

Recorded as KEN YAMAGUCHI, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 14, 2016

Orthopaedic Surgery (License #108927 in MO)

🟢

Initial NPI Registration & Enumeration July 18, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1376561001

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: July 18, 2006

Last Update: August 04, 2023

Sole Proprietor: No

Update or Correct Profile

Mailing Address

259 E Erie St Fl 13

Chicago, IL 606113926

Phone: 3126956800

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.