Doctor profile · Federal record

Dr. DONALD AMMERMAN, M.D.

Psychiatry Physician (CMS: PSYCHIATRY) · Psychiatry Physician · DANBURY, CT

  • NPI 1316032295
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
84 HOSPITAL AVE, CPC ASSOCIATES
DANBURY, CT 06810
(203) 792-6060

Credentials & registration

NPPES · NUCC
NPI registered
October 2006 — 20 yrs on file
Profile last updated
August 20, 2009
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
2084P0800X — NUCC code
State licenses (2)
Connecticut #047925 · New Hampshire #RT1438

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1316032295. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
536
Distinct HCPCS
2
Medicare allowed
$39,437
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 289 54 $79
90833 Psychotherapy with evaluation and management visit, 30 minutes 247 44 $67

In context: peer comparison

Among 7 peers in this city , average services per provider: 146. This provider delivers 3.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$279,657
Transactions
389
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 207 $135,156.38
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) 123 $111,736.50
Neurocrine Biosciences, Inc. 38 $32,189.22
E.R. Squibb & Sons, L.L.C. 4 $173.43
Supernus Pharmaceuticals, Inc. 2 $86.72
Teva Pharmaceuticals USA, Inc. 3 $74.25
Janssen Pharmaceuticals, Inc 3 $65.04
Otsuka America Pharmaceutical, Inc. 3 $65.03
Tempus AI, Inc 2 $39.60
Alkermes, Inc. 2 $34.64
Vanda Pharmaceuticals Inc. 1 $19.99
Takeda Pharmaceuticals U.S.A., Inc. 1 $16.00

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$244,998
Travel and Lodging
$15,533
Consulting Fee
$10,155
Food and Beverage
$8,932
Education
$39

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
624
Patients
67
Total drug cost
$67,986
Drug Type Claims Patients Total cost
Fluoxetine Hcl Generic 67 0 $1,860
Quetiapine Fumarate Generic 61 15 $1,428
Bupropion Xl (Bupropion Hcl) Brand 57 17 $3,123
Trazodone Hcl Generic 57 11 $1,648
Duloxetine Hcl Generic 50 11 $1,761
Desvenlafaxine Succinate Er (Desvenlafaxine Succinate) Brand 43 0 $3,668
Escitalopram Oxalate Generic 43 13 $750
Buspirone Hcl Generic 38 0 $1,084
Sertraline Hcl Generic 38 0 $553
Mirtazapine Generic 34 0 $865