Doctor profile · Federal record

Dr. Garry Gagnon, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Richardson, TX

  • NPI 1144421421
  • Accepts Medicare
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2831 E President George Bush Hwy
Richardson, TX 750823561
(469) 204-8000
Mailing address
3414 Oakhurst St
Dallas, TX 752143119

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
September 19, 2024
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Texas #M7982

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144421421. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
519
Distinct HCPCS
4
Medicare allowed
$60,296
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 208 198 $172
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 170 160 $8
99291 Critical care, first 30-74 minutes 72 72 $209
99284 Emergency department visit with moderate level of medical decision making 69 63 $119

In context: peer comparison

Among 3 peers in this city , average services per provider: 104. This provider delivers 5.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
77
Patients
77
Total drug cost
$440
Drug Type Claims Patients Total cost
Ondansetron Odt (Ondansetron) Brand 51 51 $282
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 26 26 $158

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Garry Gagnon's medical specialty?
Dr. Garry Gagnon practices Emergency Medicine Physician in Richardson, TX.
Where does Dr. Garry Gagnon practice?
Dr. Garry Gagnon practices at 2831 E President George Bush Hwy, Richardson, TX 750823561. Office phone: 4692048000.
What is Dr. Garry Gagnon's NPI?
Dr. Garry Gagnon's National Provider Identifier (NPI) is 1144421421, issued by NPPES.
Does Dr. Garry Gagnon accept Medicare assignment?
Yes. Dr. Garry Gagnon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Garry Gagnon commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.