Doctor profile · Federal record

Dr. Tammy Duong, M.D.

Psychiatry Physician (CMS: Psychiatry) · Los Angeles, CA

  • NPI 1265848519
  • Accepts Medicare
  • MIPS 70.8 / 100 · 2023
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2010 Zonal Ave, #1P10
Los Angeles, CA 900331026
(323) 409-5572
Mailing address
401 Parnassus Avenue, Box Gpp-0984
San Francisco, CA 941430984

Credentials & registration

NPPES · NUCC
NPI registered
July 2014 — 12 yrs on file
Profile last updated
November 7, 2016
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
California #A130609

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265848519. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
555
Distinct HCPCS
7
Medicare allowed
$60,512
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 351 146 $109
90833 Psychotherapy with evaluation and management visit, 30 minutes 67 20 $67
99214 Established patient office or other outpatient visit, 30-39 minutes 57 33 $109
99215 Established patient office or other outpatient visit, 40-54 minutes 24 17 $161
99213 Established patient office or other outpatient visit, 20-29 minutes 21 16 $74
90792 Psychiatric diagnostic evaluation with medical services 18 18 $187
99215 Established patient office or other outpatient visit, 40-54 minutes 17 11 $160

In context: peer comparison

Among 77 peers in Los Angeles Psychiatry Physician, average services per provider: 134. This provider delivers 4.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
554
Patients
64
Total drug cost
$12,541
Drug Type Claims Patients Total cost
Mirtazapine Generic 86 22 $2,461
Escitalopram Oxalate Generic 71 19 $1,136
Lorazepam Generic 66 12 $269
Clonazepam Generic 63 0 $1,763
Duloxetine Hcl Generic 42 0 $1,444
Quetiapine Fumarate Generic 38 11 $1,079
Bupropion Xl (Bupropion Hcl) Brand 35 0 $1,250
Trazodone Hcl Generic 31 0 $483
Sertraline Hcl Generic 26 0 $442
Bupropion Hcl SR (Bupropion Hcl) Brand 22 0 $880

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Tammy Duong's medical specialty?
Dr. Tammy Duong practices Psychiatry Physician in Los Angeles, CA.
Where does Dr. Tammy Duong practice?
Dr. Tammy Duong practices at 2010 Zonal Ave, Los Angeles, CA 900331026. Office phone: 3234095572.
What is Dr. Tammy Duong's NPI?
Dr. Tammy Duong's National Provider Identifier (NPI) is 1265848519, issued by NPPES.
Does Dr. Tammy Duong accept Medicare assignment?
Yes. Dr. Tammy Duong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tammy Duong commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Psychotherapy with evaluation and management visit (HCPCS 90833); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.