Doctor profile · Federal record
Dr. Darwin-Dean Castillo, M.D.
Emergency Medicine Physician · Emergency Medicine Physician · Williamsburg, VA
- NPI 1740507797
- MIPS 90.1 / 100 · 2023
- 16 yrs on file
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
4374 New Town Ave Ste 100
Williamsburg, VA 231882865
(757) 772-6124 - Additional location
-
44045 Riverside Pkwy
Leesburg, VA 201765101
(703) 858-6044
fax (703) 858-6775 - Additional location
-
300 S Preston St
Ranson, WV 254381631
(240) 686-2300 - Mailing address
-
44045 Riverside Pkwy
Leesburg, VA 201765101
Credentials & registration
- NPI registered
- April 2010 — 16 yrs on file
- Profile last updated
- March 10, 2025
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Virginia #0101254805 · West Virginia #30537
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740507797. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
744
Distinct HCPCS
4
Medicare allowed
$101,299
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 408 | 395 | $171 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 160 | 151 | $8 | |
99291 |
Critical care, first 30-74 minutes | 107 | 105 | $207 | |
99284 |
Emergency department visit with moderate level of medical decision making | 69 | 69 | $119 |
In context: peer comparison
Among 4 peers in Williamsburg Emergency Medicine Physician, average services per provider: 170. This provider delivers 4.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
215
Patients
212
Total drug cost
$1,281
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Odt (Ondansetron) | Brand | 74 | 71 | $591 |
| Cephalexin | Generic | 43 | 43 | $291 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 18 | 18 | $69 |
| Dicyclomine Hcl | Generic | 16 | 16 | $40 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 16 | 16 | $54 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 13 | 13 | $125 |
| Famotidine | Generic | 12 | 12 | $63 |
| Prednisone | Generic | 12 | 12 | $26 |
| Cyclobenzaprine Hcl | Generic | 11 | 11 | $22 |
Frequently asked questions
What is Dr. Darwin-Dean Castillo's medical specialty?
Dr. Darwin-Dean Castillo practices Emergency Medicine Physician in Williamsburg, VA.
Where does Dr. Darwin-Dean Castillo practice?
Dr. Darwin-Dean Castillo practices at 4374 New Town Ave Ste 100, Williamsburg, VA 231882865. Office phone: 7577726124.
What is Dr. Darwin-Dean Castillo's NPI?
Dr. Darwin-Dean Castillo's National Provider Identifier (NPI) is 1740507797, issued by NPPES.
What procedures does Dr. Darwin-Dean Castillo commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.