Doctor profile · Federal record

Dr. Andy Nguyen, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Student in an Organized Health Care Education/Training Program · Orange, CA

  • NPI 1538696836
  • Accepts Medicare
  • 9 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
101 the City Dr S
Orange, CA 928683201
(714) 456-7890
Additional location
506 6Th St
Brooklyn, NY 112153609
(718) 780-3000
Mailing address
4713 Avenida de Las Flores
Yorba Linda, CA 928862910

Credentials & registration

NPPES · NUCC
NPI registered
May 2017 — 9 yrs on file
Profile last updated
July 13, 2020
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
California #A169250

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538696836. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
460
Distinct HCPCS
7
Medicare allowed
$53,311
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 162 158 $178
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 120 113 $8
99284 Emergency department visit with moderate level of medical decision making 78 78 $123
99291 Critical care, first 30-74 minutes 33 31 $217
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 31 31 $177
71045 X-ray of chest, 1 view 22 22 $9
99283 Emergency department visit with low level of medical decision making 14 13 $73

In context: peer comparison

Among 51 peers in Orange Emergency Medicine Physician, average services per provider: 60. This provider delivers 7.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
77
Patients
76
Total drug cost
$558
Drug Type Claims Patients Total cost
Cefdinir Generic 26 26 $357
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 22 22 $72
Ibuprofen Generic 17 17 $83
Azithromycin Generic 12 11 $47

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Andy Nguyen's medical specialty?
Dr. Andy Nguyen practices Emergency Medicine Physician in Orange, CA.
Where does Dr. Andy Nguyen practice?
Dr. Andy Nguyen practices at 101 the City Dr S, Orange, CA 928683201. Office phone: 7144567890.
What is Dr. Andy Nguyen's NPI?
Dr. Andy Nguyen's National Provider Identifier (NPI) is 1538696836, issued by NPPES.
Does Dr. Andy Nguyen accept Medicare assignment?
Yes. Dr. Andy Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andy Nguyen 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.