Doctor profile · Federal record
Dr. John Duffy, MD
Psychiatry Physician · Santa Ana, CA
- NPI 1255497251
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1401 N. Tustin Avenue, Suite 130, Suite 165
Santa Ana, CA 92705
(714) 542-3008
fax (714) 542-3617
Credentials & registration
- NPI registered
- December 2006 — 20 yrs on file
- Profile last updated
- March 15, 2023
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- California #A54948
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255497251. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$2,225
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Eli Lilly and Company | 1 | $2,100.00 | |
| Novo Nordisk Inc | 1 | $125.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
180
Patients
0
Total drug cost
$3,643
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Bupropion Xl (Bupropion Hcl) | Brand | 34 | 0 | $248 |
| Zolpidem Tartrate | Generic | 25 | 0 | $175 |
| Quetiapine Fumarate | Generic | 22 | 0 | $688 |
| Divalproex Sodium Er (Divalproex Sodium) | Brand | 20 | 0 | $465 |
| Escitalopram Oxalate | Generic | 17 | 0 | $202 |
| Alprazolam | Generic | 15 | 0 | $54 |
| Memantine Hcl | Generic | 13 | 0 | $390 |
| Memantine Hcl Er (Memantine Hcl) | Brand | 12 | 0 | $1,357 |
| Clonazepam | Generic | 11 | 0 | $23 |
| Temazepam | Generic | 11 | 0 | $40 |
Frequently asked questions
What is Dr. John Duffy's medical specialty?
Dr. John Duffy practices Psychiatry Physician in Santa Ana, CA.
Where does Dr. John Duffy practice?
Dr. John Duffy practices at 1401 N. Tustin Avenue, Suite 130, Santa Ana, CA 92705. Office phone: 7145423008.
What is Dr. John Duffy's NPI?
Dr. John Duffy's National Provider Identifier (NPI) is 1255497251, issued by NPPES.