Doctor profile · Federal record

Dr. JOSEPH AHN, M.D.

Psychiatry Physician (CMS: PSYCHIATRY) · Student in an Organized Health Care Education/Training Program · BOSTON, MA

  • NPI 1477812733
  • Accepts Medicare
  • 14 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
55 FRUIT ST # 812
BOSTON, MA 021142621
(617) 724-5600
Additional location
One Medical Center Drive, DHMC Department of Psychiatry
Lebanon, NH 037561000
(603) 650-5000
Mailing address
15 PARKMAN ST, WAC812
BOSTON, MA 021143117

Credentials & registration

NPPES · NUCC
NPI registered
May 2012 — 14 yrs on file
Profile last updated
March 18, 2025
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State license (1)
Massachusetts #267629

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1477812733. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
479
Distinct HCPCS
4
Medicare allowed
$59,035
HCPCS Description Services Patients Avg allowed
99443 Telephone medical discussion with physician, 21-30 minutes 183 55 $103
99215 Established patient office or other outpatient visit, 40-54 minutes 151 58 $152
99214 Established patient office or other outpatient visit, 30-39 minutes 116 45 $103
90792 Psychiatric diagnostic evaluation with medical services 29 29 $180

In context: peer comparison

Among 128 peers in this city , average services per provider: 69. This provider delivers 6.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,061
Patients
216
Total drug cost
$30,666
Drug Type Claims Patients Total cost
Clonazepam Generic 156 29 $1,505
Bupropion Xl (Bupropion Hcl) Brand 103 27 $5,022
Lorazepam Generic 94 17 $670
Trazodone Hcl Generic 83 35 $1,425
Alprazolam Generic 77 0 $814
Sertraline Hcl Generic 75 22 $1,148
Venlafaxine Hcl Er (Venlafaxine Hcl) Brand 74 21 $2,275
Quetiapine Fumarate Generic 73 15 $3,588
Mirtazapine Generic 66 18 $2,198
Duloxetine Hcl Generic 54 0 $2,844