Doctor profile · Federal record
Dr. Guillermo Castillo, M.D.
Family Medicine Physician (CMS: Family Practice) · San Diego, CA
- NPI 1366558322
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2001 4Th Ave
San Diego, CA 921012303
(858) 499-2717
fax (858) 636-2210
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- May 5, 2017
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #A83282
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366558322. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$350
Transactions
6
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| CVRx, Inc. | 1 | $161.46 | |
| Boston Scientific Corporation | 1 | $121.93 | |
| Galderma Laboratories, L.P. | 3 | $47.79 | |
| ABBVIE INC. | 1 | $19.17 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
104
Patients
0
Total drug cost
$9,298
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamsulosin Hcl | Generic | 17 | 0 | $122 |
| Atorvastatin Calcium | Generic | 16 | 0 | $128 |
| Eliquis (Apixaban) | Brand | 14 | 0 | $8,162 |
| Gabapentin | Generic | 12 | 0 | $130 |
| Levothyroxine Sodium | Generic | 12 | 0 | $148 |
| Allopurinol | Generic | 11 | 0 | $142 |
| Famotidine | Generic | 11 | 0 | $60 |
| Venlafaxine Hcl Er (Venlafaxine Hcl) | Brand | 11 | 0 | $406 |
Frequently asked questions
What is Dr. Guillermo Castillo's medical specialty?
Dr. Guillermo Castillo practices Family Medicine Physician in San Diego, CA.
Where does Dr. Guillermo Castillo practice?
Dr. Guillermo Castillo practices at 2001 4Th Ave, San Diego, CA 921012303. Office phone: 8584992717.
What is Dr. Guillermo Castillo's NPI?
Dr. Guillermo Castillo's National Provider Identifier (NPI) is 1366558322, issued by NPPES.
Does Dr. Guillermo Castillo accept Medicare assignment?
Dr. Guillermo Castillo does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.