Sandra Aguayo Castanon, P. A.
Physician Assistant · Crystal City, TX
Sandra Aguayo Castanon, P. A. is a physician assistant with a practice address in Crystal City, Texas, and NPI 1114472412, issued on Aug 17, 2016. Check the license with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sandra Aguayo Castanon
- Credential
- P. A.
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 308 S Cesar Chavez Ave, Crystal City, TX 78839
- Phone
- (830) 374-2301
- Enumerated
- Aug 17, 2016
- Record last updated
- Aug 17, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (830) 374-9368
- Medicare enrollment
- Enrolled (PECOS I20170130001429); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 308 S Cesar Chavez Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leticia Ballesteros, FNPFamily Nurse Practitioner1518235852
- Vanessa BenavidesCounselor1003442385
- Rosanna Caballero, FNPFamily Nurse Practitioner1164997656
- Steven Garza, P.A.Medical Physician Assistant1841383908
- Rosa Guzman, LCDCAddiction (Substance Use Disorder) Counselor1992210439
- Marivel Hinojosa, LCDCAddiction (Substance Use Disorder) Counselor1851864078
Verify Sandra Aguayo Castanon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average physician assistant in 2024
1,674 Medicare Part D claims for 177 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium111 claims
- Lisinopril85 claims
- Amlodipine Besylate71 claims
- Levothyroxine Sodium62 claims
- Losartan Potassium61 claims
- Omeprazole48 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Community Health Development, Inc.Leakey, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
2 physician assistant records list a practice address in Crystal City
They are 2 of the 38 NPPES records with a practice address in Crystal City, and 10,999 physician assistant records in Texas.
All 2 in Crystal City → All 10,999 in Texas → Every provider in Crystal City →
Other physician assistant records in Texas
- Neha Aamir, PAPearland, TX1932821808
- Shaghayegh Ababaf, PA-CLewisville, TX1912372145
- Linda Abad, PA-CHouston, TX1063928240
- Hansaa AbbasiDallas, TX1013575679
- Alicia Abbey, MPAS, PA-CSan Antonio, TX1710468145
- Dallah Abdallahi, PADallas, TX1093294811
- Haya AbdellatifGalveston, TX1518409903
- Hillary Abdennassar, PA-CDallas, TX1245991793
- Hodan Abdi, PA-CDallas, TX1558750075
- Lama Abdillahi, PAGalveston, TX1396668604
Common questions
What is Sandra Aguayo Castanon, P. A.'s NPI number?
Sandra Aguayo Castanon, P. A.'s National Provider Identifier (NPI) is 1114472412, issued on Aug 17, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Sandra Aguayo Castanon, P. A. located?
The NPPES record lists a practice address at 308 S Cesar Chavez Ave, Crystal City, TX, 78839. Phone: (830) 374-2301. Providers update this record themselves, so call before visiting.
How can I verify Sandra Aguayo Castanon, P. A.'s license?
Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Sandra Aguayo Castanon, P. A. prescribe under Medicare Part D?
In 2024, Sandra Aguayo Castanon, P. A. had 1,674 Medicare Part D claims for 177 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.