Doctor profile · Federal record
Dr. Dennis O'Brien, M.D.
Psychiatry Physician · Psychiatry Physician · Dublin, CA
- NPI 1043250079
- 20 yrs on file
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
5325 Broder Blvd
Dublin, CA 94568
(925) 551-6500 - Additional location
-
910 N Hairston RD
Stone Mountain, GA 300832802
(404) 377-5556
fax (404) 292-9903
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- November 15, 2019
- Specialty taxonomy
- 2084P0800X — NUCC code
- State licenses (2)
- California #C161834 · Georgia #025893
- Medicaid
- GA #000483348A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1043250079. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$178
Transactions
4
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| E.R. Squibb & Sons, L.L.C. | 1 | $121.86 | |
| Teva Pharmaceuticals USA, INC. | 2 | $39.19 | |
| Janssen Pharmaceuticals, INC | 1 | $17.12 |
By nature of payment
Frequently asked questions
What is Dr. Dennis O'Brien's medical specialty?
Dr. Dennis O'Brien practices Psychiatry Physician in Dublin, CA.
Where does Dr. Dennis O'Brien practice?
Dr. Dennis O'Brien practices at 5325 Broder Blvd, Dublin, CA 94568. Office phone: 9255516500.
What is Dr. Dennis O'Brien's NPI?
Dr. Dennis O'Brien's National Provider Identifier (NPI) is 1043250079, issued by NPPES.