Doctor profile · Federal record
Dr. Ernest de Guzman, M.D.
Psychiatry Physician (CMS: Psychiatry) · San Diego, CA
- NPI 1801914544
- Accepts Medicare
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6973 Linda Vista Road
San Diego, CA 921116342
(858) 279-9676
fax (858) 279-0377
Credentials & registration
- NPI registered
- March 2007 — 19 yrs on file
- Profile last updated
- September 19, 2014
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- California #A95424
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1801914544. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
122
Distinct HCPCS
2
Medicare allowed
$7,967
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 61 | 35 | $63 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 61 | 35 | $68 |
In context: peer comparison
Among 54 peers in this city , average services per provider: 141. This provider delivers 0.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,915
Patients
291
Total drug cost
$60,221
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Quetiapine Fumarate | Generic | 241 | 37 | $9,907 |
| Alprazolam | Generic | 182 | 30 | $3,459 |
| Bupropion Xl (Bupropion Hcl) | Brand | 172 | 23 | $7,722 |
| Clonazepam | Generic | 169 | 34 | $3,137 |
| Fluoxetine Hcl | Generic | 152 | 22 | $1,922 |
| Trazodone Hcl | Generic | 146 | 22 | $3,757 |
| Venlafaxine Hcl Er (Venlafaxine Hcl) | Brand | 134 | 21 | $3,863 |
| Lorazepam | Generic | 114 | 21 | $2,584 |
| Sertraline Hcl | Generic | 114 | 20 | $2,006 |
| Zolpidem Tartrate | Generic | 106 | 19 | $1,669 |
Frequently asked questions
What is Dr. Ernest de Guzman's medical specialty?
Dr. Ernest de Guzman practices Psychiatry Physician in San Diego, CA.
Where does Dr. Ernest de Guzman practice?
Dr. Ernest de Guzman practices at 6973 Linda Vista Road, San Diego, CA 921116342. Office phone: 8582799676.
What is Dr. Ernest de Guzman's NPI?
Dr. Ernest de Guzman's National Provider Identifier (NPI) is 1801914544, issued by NPPES.
Does Dr. Ernest de Guzman accept Medicare assignment?
Yes. Dr. Ernest de Guzman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ernest de Guzman commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy with evaluation and management visit (HCPCS 90833); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.