Doctor profile · Federal record

Dr. Robert Gay, M.D.

Anesthesiology Physician (CMS: Anesthesiology) · Anesthesiology Physician · Chicago, IL

  • NPI 1427057298
  • Accepts Medicare
  • MIPS 86.9 / 100 · 2023
  • 36 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1 E Erie St, Suite 300
Chicago, IL 606112740
(312) 649-3939
fax (312) 649-5747
Mailing address
225 N Columbus Dr, Unit 6005
Chicago, IL 606017910

Credentials & registration

NPPES · NUCC
NPI registered
July 2005 — 21 yrs on file
Profile last updated
September 17, 2024
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207L00000X — NUCC code
State licenses (2)
Illinois #036085978 · California #G184019
Medicaid
IL #036085978

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1427057298. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
243
Distinct HCPCS
10
Medicare allowed
$54,674
HCPCS Description Services Patients Avg allowed
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 46 46 $151
00811 Anesthesia for other procedure on large bowel using an endoscope 43 43 $151
01402 Anesthesia for procedure for total knee joint replacement 32 32 $310
01214 Anesthesia for total hip replacement 23 23 $323
64448 Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter 22 21 $73
00813 Anesthesia for procedure on small and large bowel using an endoscope 17 17 $194
00790 Anesthesia for other procedure on upper abdomen 13 13 $374
00670 Anesthesia for extensive surgery on spine 12 12 $519
00812 Anesthesia for exam of colon using an endoscope 12 12 $117
01922 Anesthesia for x-ray or radiation therapy 12 12 $213

In context: peer comparison

Among 212 peers in this city , average services per provider: 66. This provider delivers 3.7× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Gay's medical specialty?
Dr. Robert Gay practices Anesthesiology Physician in Chicago, IL.
Where does Dr. Robert Gay practice?
Dr. Robert Gay practices at 1 E Erie St, Chicago, IL 606112740. Office phone: 3126493939.
What is Dr. Robert Gay's NPI?
Dr. Robert Gay's National Provider Identifier (NPI) is 1427057298, issued by NPPES.
Does Dr. Robert Gay accept Medicare assignment?
Yes. Dr. Robert Gay accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Gay commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for procedure for total knee joint replacement (HCPCS 01402). Source: CMS Medicare Physician & Other Practitioners file.