Dr. Cory Kishi Hiro Mayfield , MD
Orthopaedic Surgery β’ Chicago, IL
1611 W Harrison St Ste 400
Chicago, IL 606124861
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
1611 W Harrison St Ste 400
Chicago, IL 606124861
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Los Angeles, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2020
What Public CMS Data Show
Orthopaedic Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2025
All general payments: $550.50 across 9 records.
By nature of payment
- Food and Beverage: $550.50 across 9 records.
Reporting-company totals
- Stryker Corporation: $464.89 across 7 records.
- DePuy Synthes Sales Inc.: $85.61 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
6 years (graduated 2020)
CMS Doctors and Clinicians data list 2020 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2020
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, βDoes your provider accept Medicare as full payment?β
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Mayfield has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Mayfield as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Chicago and Illinois
274 active clinicians are listed under Orthopaedic Surgery with a practice address in Chicago, IL (997 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
5.8% of these 274 clinicians have the CMS telehealth indicator.
34.7% of these 274 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $268.88 in 2024 to $550.50 in 2025.
- 2024: $268.88
- 2025: $550.50
Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo Β· Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 β December 31, 2025): fewer than 11 records totaling $550.50.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
MAKO | General | $157.98 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
MAKO | General | $157.86 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
PANGEA | General | $47.15 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
NA | General | $45.11 |
| DePuy Synthes Sales Inc. |
Food and Beverage
In-kind items and services
|
NA | General | $40.50 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
AUGMENT INJECTABLE | General | $39.51 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
PANGEA | General | $27.68 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
CHAMPION | General | $19.14 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
NA | General | $15.57 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-05-08NUCC Taxonomy Code: 207X00000X
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.
NUCC Taxonomy Code: 207X00000X
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.
NUCC Taxonomy Code: 207XX0005X
An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.
NUCC Taxonomy Code: 207X00000X
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.
NUCC Taxonomy Code: 207XX0005X
An orthopaedic surgeon trained in sports medicine provides appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ORTHOPEDIC SURGERY
I20260210001340
IL
7719383793
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Secondary Practice Locations
2051 Marengo St Ste A7d
Los Angeles, CA 900331352
Phone: 3105916735
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Physical Therapist
Physical Therapist
Orthopaedic Surgery - Adult Reconstructive Orthopaedic Surgery
Doctor of Medicine (M.D.)
Physical Therapist
Doctor of Physical Therapy
Physical Therapist
Physical Therapist
Physician Assistant
Physician Assistant (Certified)
Physical Therapist
Physical Therapist
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 1611 W HARRISON ST STE 400, CHICAGO, IL 606124861 (Tel: 8776326637)
Registered at PO BOX 735263, CHICAGO, IL 606735263
Recorded as CORY MAYFIELD, MD
Orthopaedic Surgery (license number reported to NPPES: IL 036.178366)
Orthopaedic Surgery (license number reported to NPPES: CA A179921)
NPI status registered as active in NPPES database
Registered at 2051 MARENGO ST STE A7D, LOS ANGELES, CA 900331352 (Tel: 3105916735)
Registered at 2051 MARENGO ST STE A7D, LOS ANGELES, CA 900331352 (Tel: 3105916735)
Recorded as CORY MAYFIELD
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Orthopaedic Surgery Specialists in Chicago
- Dr. Kristofer Bires, MD
- Dr. George Sisson, MD
- Dr. Robert Hall, MD
- Dr. Michael Stover, MD
- Dr. Wellington Hsu, MD
- Dr. Joseph Karam, MD
Mailing Address
Po Box 735263
Chicago, IL 606735263