Doctor profile · Federal record
Dr. Ann Callahan, MD
Psychiatry Physician · Darien, CT
- NPI 1144343328
- 19 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10 Corbin Dr, Suite 4
Darien, CT 068205403
(203) 655-0002
fax (203) 655-0023
Credentials & registration
- NPI registered
- April 2007 — 19 yrs on file
- Profile last updated
- February 18, 2010
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- Connecticut #039508
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144343328. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$317
Transactions
4
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Axsome Therapeutics, Inc. | 1 | $125.00 | |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | 1 | $114.61 | |
| Janssen Pharmaceuticals, Inc | 1 | $63.29 | |
| ABBVIE INC. | 1 | $13.69 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,068
Patients
149
Total drug cost
$26,330
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Venlafaxine Hcl Er (Venlafaxine Hcl) | Brand | 113 | 16 | $2,544 |
| Clonazepam | Generic | 110 | 13 | $1,801 |
| Fluoxetine Hcl | Generic | 100 | 16 | $1,142 |
| Mirtazapine | Generic | 89 | 0 | $1,879 |
| Aripiprazole | Generic | 87 | 14 | $8,497 |
| Lamotrigine | Generic | 84 | 20 | $1,136 |
| Lorazepam | Generic | 84 | 17 | $785 |
| Quetiapine Fumarate | Generic | 76 | 17 | $1,397 |
| Duloxetine Hcl | Generic | 72 | 12 | $1,898 |
| Escitalopram Oxalate | Generic | 53 | 0 | $855 |
Frequently asked questions
What is Dr. Ann Callahan's medical specialty?
Dr. Ann Callahan practices Psychiatry Physician in Darien, CT.
Where does Dr. Ann Callahan practice?
Dr. Ann Callahan practices at 10 Corbin Dr, Darien, CT 068205403. Office phone: 2036550002.
What is Dr. Ann Callahan's NPI?
Dr. Ann Callahan's National Provider Identifier (NPI) is 1144343328, issued by NPPES.