Doctor profile · Federal record
Dr. Erik Petersen, MD
Psychiatry Physician (CMS: Psychiatry) · Santa Ana, CA
- NPI 1922210251
- Accepts Medicare
- 23 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
999 N Tustin Ave Ste 216
Santa Ana, CA 927056506
(714) 545-5550
fax (949) 609-0374 - Mailing address
-
3151 Airway Ave Ste G1
Costa Mesa, CA 926264624
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- February 18, 2026
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- California #A137589
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922210251. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
59
Distinct HCPCS
1
Medicare allowed
$5,997
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 59 | 13 | $102 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 57. This provider delivers 1.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
342
Patients
74
Total drug cost
$156,157
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trazodone Hcl | Generic | 48 | 17 | $428 |
| Olanzapine | Generic | 42 | 14 | $1,237 |
| Invega Sustenna (Paliperidone Palmitate) | Brand | 41 | 0 | $141,140 |
| Quetiapine Fumarate | Generic | 37 | 13 | $593 |
| Divalproex Sodium Er (Divalproex Sodium) | Brand | 29 | 0 | $4,451 |
| Aripiprazole | Generic | 26 | 18 | $4,282 |
| Clozapine | Generic | 19 | 0 | $2,673 |
| Fluoxetine Hcl | Generic | 17 | 0 | $108 |
| Lamotrigine | Generic | 17 | 12 | $269 |
| Buspirone Hcl | Generic | 16 | 0 | $220 |
Frequently asked questions
What is Dr. Erik Petersen's medical specialty?
Dr. Erik Petersen practices Psychiatry Physician in Santa Ana, CA.
Where does Dr. Erik Petersen practice?
Dr. Erik Petersen practices at 999 N Tustin Ave Ste 216, Santa Ana, CA 927056506. Office phone: 7145455550.
What is Dr. Erik Petersen's NPI?
Dr. Erik Petersen's National Provider Identifier (NPI) is 1922210251, issued by NPPES.
Does Dr. Erik Petersen accept Medicare assignment?
Yes. Dr. Erik Petersen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Erik Petersen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.