Doctor profile · Federal record

Dr. Matthew McKay, MD

Emergency Medicine Physician · Fullerton, CA

  • NPI 1184653966
  • MIPS 75.0 / 100 · 2023
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
101 E Valencia Mesa Dr, Em Dept
Fullerton, CA 928353809
(714) 992-3965
Mailing address
4401 W Memorial RD, Suite 121
Oklahoma City, OK 731341785

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
September 18, 2009
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #G68542
Medicaid (2)
CA #00G685420 · CA #WG68542H

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184653966. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
969
Distinct HCPCS
5
Medicare allowed
$117,148
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 289 284 $181
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 288 278 $9
99284 Emergency department visit with moderate level of medical decision making 212 206 $125
99291 Critical care, first 30-74 minutes 154 152 $222
99283 Emergency department visit with low level of medical decision making 26 25 $74

In context: peer comparison

Among 4 peers in Fullerton Emergency Medicine Physician, average services per provider: 164. This provider delivers 5.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$25
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Eisai INC. 1 $25.00

By nature of payment

Food and Beverage
$25

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
326
Patients
324
Total drug cost
$2,733
Drug Type Claims Patients Total cost
Ondansetron Odt (Ondansetron) Brand 41 41 $322
Azithromycin Generic 39 38 $181
Tramadol Hcl Generic 38 38 $114
Cephalexin Generic 37 36 $437
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 32 32 $244
Ciprofloxacin Hcl Generic 25 25 $226
Methylprednisolone Generic 22 22 $177
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 18 18 $69
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 17 17 $136
Pantoprazole Sodium Generic 16 16 $34

Frequently asked questions

Auto-generated from federal data
What is Dr. Matthew McKay's medical specialty?
Dr. Matthew McKay practices Emergency Medicine Physician in Fullerton, CA.
Where does Dr. Matthew McKay practice?
Dr. Matthew McKay practices at 101 E Valencia Mesa Dr, Fullerton, CA 928353809. Office phone: 7149923965.
What is Dr. Matthew McKay's NPI?
Dr. Matthew McKay's National Provider Identifier (NPI) is 1184653966, issued by NPPES.
What procedures does Dr. Matthew McKay 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); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.