Doctor profile · Federal record

Dr. Gregory Lopez, MD

Orthopaedic Surgery of the Spine Physician (CMS: Orthopedic Surgery) · Student in an Organized Health Care Education/Training Program · Chicago, IL

  • NPI 1366754699
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1611 W Harrison St, Ste 300
Chicago, IL 606124861
(708) 236-2600
Mailing address
1 Westbrook Corporate Ctr, Ste 240
Westchester, IL 601545701

Credentials & registration

NPPES · NUCC
NPI registered
July 2010 — 16 yrs on file
Profile last updated
January 9, 2017
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207XS0117X — NUCC code
State license (1)
Illinois #036137855

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366754699. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,847
Distinct HCPCS
10
Medicare allowed
$679,500
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 571 400 $94
72100 X-ray of lower and sacral spine, 2-3 views 392 218 $41
99203 New patient office or other outpatient visit, 30-44 minutes 254 254 $117
72110 X-ray of lower and sacral spine, minimum of 4 views 238 237 $53
72148 Mri scan of lower spinal canal without contrast 162 153 $206
J1100 Injection, dexamethasone sodium phosphate, 1 mg 153 81 $0
63047 Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 101 99 $855
72040 X-ray of upper spine, 2-3 views 89 49 $41
22612 Fusion of spine in lower back 87 87 $1,790
73562 X-ray of knee, 3 views 85 78 $34

In context: peer comparison

Among 5 peers in this city , average services per provider: 67. This provider delivers 42× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,365
Transactions
16
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Globus Medical, Inc. 6 $502.61
Alphatec Spine, Inc 2 $319.85
ZIMVIE INC. 5 $274.26
Stryker Corporation 1 $145.48
Fusion Orthopedics USA, LLC 1 $102.99
Cerapedics Inc. 1 $19.74

By nature of payment

Food and Beverage
$990
Consulting Fee
$375

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
588
Patients
366
Total drug cost
$5,845
Drug Type Claims Patients Total cost
Tizanidine Hcl Generic 195 97 $1,251
Methylprednisolone Generic 147 130 $1,724
Gabapentin Generic 69 36 $881
Diclofenac Sodium Generic 67 37 $1,260
Meloxicam Generic 65 29 $384
Cefadroxil Generic 27 24 $199
Cyclobenzaprine Hcl Generic 18 13 $147

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Lopez's medical specialty?
Dr. Gregory Lopez practices Orthopaedic Surgery of the Spine Physician in Chicago, IL.
Where does Dr. Gregory Lopez practice?
Dr. Gregory Lopez practices at 1611 W Harrison St, Chicago, IL 606124861. Office phone: 7082362600.
What is Dr. Gregory Lopez's NPI?
Dr. Gregory Lopez's National Provider Identifier (NPI) is 1366754699, issued by NPPES.
Does Dr. Gregory Lopez accept Medicare assignment?
Yes. Dr. Gregory Lopez accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Lopez commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); X-ray of lower and sacral spine, 2-3 views (HCPCS 72100); New patient office or other outpatient visit (HCPCS 99203). Source: CMS Medicare Physician & Other Practitioners file.