Doctor profile · Federal record
Dr. Sandra Castanon, P. A.
Physician Assistant · Crystal City, TX
- NPI 1114472412
- Accepts Medicare
- 10 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
308 S Cesar Chavez Ave
Crystal City, TX 788394200
(830) 374-2301
fax (830) 374-9368
Credentials & registration
- NPI registered
- August 2016 — 10 yrs on file
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1114472412. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
40
Distinct HCPCS
2
Medicare allowed
$1,408
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
81002 |
Urinalysis, manual test | 25 | 18 | $3 | |
87637 |
Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus | 15 | 14 | $88 |
In context: peer comparison
Among 1 peers in Crystal City Physician Assistant, average services per provider: 20. This provider delivers 2.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
738
Patients
189
Total drug cost
$49,452
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 98 | 28 | $1,367 |
| Lisinopril | Generic | 79 | 27 | $1,029 |
| Amlodipine Besylate | Generic | 66 | 22 | $279 |
| Levothyroxine Sodium | Generic | 63 | 17 | $1,154 |
| Losartan Potassium | Generic | 60 | 20 | $635 |
| Omeprazole | Generic | 50 | 18 | $706 |
| Metoprolol Succinate | Generic | 49 | 14 | $769 |
| Gabapentin | Generic | 43 | 19 | $1,112 |
| Hydrochlorothiazide | Generic | 43 | 13 | $139 |
| Ozempic (Semaglutide) | Brand | 38 | 0 | $40,420 |
Frequently asked questions
What is Dr. Sandra Castanon's medical specialty?
Dr. Sandra Castanon practices Physician Assistant in Crystal City, TX.
Where does Dr. Sandra Castanon practice?
Dr. Sandra Castanon practices at 308 S Cesar Chavez Ave, Crystal City, TX 788394200. Office phone: 8303742301.
What is Dr. Sandra Castanon's NPI?
Dr. Sandra Castanon's National Provider Identifier (NPI) is 1114472412, issued by NPPES.
Does Dr. Sandra Castanon accept Medicare assignment?
Yes. Dr. Sandra Castanon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sandra Castanon commonly perform?
Top Medicare-reported procedures in 2023: Urinalysis, manual test (HCPCS 81002); Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19), influenza virus types a and b, and respiratory syncytial virus (HCPCS 87637). Source: CMS Medicare Physician & Other Practitioners file.