Doctor profile · Federal record
Dr. Tamara O'Nan, PA-C
Physician Assistant · Physician Assistant · Medical Physician Assistant · Newport Beach, CA
- NPI 1477837862
- 15 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1401 Dove St Ste 420
Newport Beach, CA 926602420
(949) 945-0927
fax (949) 269-6263 - Additional location
-
1190 W. Baker St, Ste 100
Costa Mesa, CA 926264105
(714) 668-2500
fax (714) 668-2515 - Mailing address
-
Po Box 3699
Newport Beach, CA 926598699
Credentials & registration
- NPI registered
- October 2011 — 15 yrs on file
- Profile last updated
- March 12, 2025
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- California #PA21869
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477837862. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$3,624
Transactions
154
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | 31 | $637.17 | |
| IRONSHORE PHARMACEUTICALS INC. | 16 | $366.93 | |
| Lundbeck LLC | 17 | $271.91 | |
| Noven Therapeutics, LLC | 13 | $249.21 | |
| Alkermes, Inc. | 12 | $243.12 | |
| Otsuka America Pharmaceutical, Inc. | 17 | $237.56 | |
| Vanda Pharmaceuticals Inc. | 7 | $205.31 | |
| Neurocrine Biosciences, Inc. | 9 | $204.83 | |
| ABBVIE INC. | 6 | $160.15 | |
| Janssen Pharmaceuticals, Inc | 3 | $106.60 | |
| Tris Pharma Inc | 5 | $106.46 | |
| Corium, LLC | 4 | $101.92 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 5 | $97.87 | |
| IDORSIA PHARMACEUTICALS US INC | 6 | $96.77 | |
| E.R. Squibb & Sons, L.L.C. | 3 | $92.88 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
539
Patients
98
Total drug cost
$72,177
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Quetiapine Fumarate | Generic | 83 | 19 | $3,111 |
| Spravato (Esketamine Hcl) | Brand | 51 | 0 | $57,824 |
| Lamotrigine | Generic | 50 | 11 | $534 |
| Clonazepam | Generic | 48 | 16 | $652 |
| Duloxetine Hcl | Generic | 45 | 18 | $1,583 |
| Aripiprazole | Generic | 43 | 11 | $2,771 |
| Trazodone Hcl | Generic | 34 | 12 | $1,204 |
| Gabapentin | Generic | 27 | 11 | $637 |
| Bupropion Xl (Bupropion Hcl) | Brand | 26 | 0 | $1,054 |
| Divalproex Sodium | Generic | 25 | 0 | $244 |
Frequently asked questions
What is Dr. Tamara O'Nan's medical specialty?
Dr. Tamara O'Nan practices Physician Assistant in Newport Beach, CA.
Where does Dr. Tamara O'Nan practice?
Dr. Tamara O'Nan practices at 1401 Dove St Ste 420, Newport Beach, CA 926602420. Office phone: 9499450927.
What is Dr. Tamara O'Nan's NPI?
Dr. Tamara O'Nan's National Provider Identifier (NPI) is 1477837862, issued by NPPES.