At a glance
- 621 Camden St Ste 202, San Antonio, TX 78215
About Maria Theresa Castillo
Maria Theresa Castillo, PA is a physician assistant practicing in San Antonio, TX. Maria Theresa is also listed as specializing in physician assistant — medical. According to Medicare claims data, Maria Theresa cared for 141 Medicare patients across 151 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and telephone medical discussion with physician, 11-20 minutes. This provider record is associated with NPI 1093792616.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (210) 253-3426
- Email not available
Practice Locations
621 CAMDEN ST STE 202
San Antonio, TX 78215
Procedures Most Often Billed to Medicare
151 services · 141 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
121 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
17 | Less often than most peers in Physician Assistant |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
13 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other physician assistants in San Antonio 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Maria Theresa Castillo?
Maria Theresa Castillo is a physician assistant in San Antonio, TX. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Maria Theresa Castillo's address?
Maria Theresa Castillo is listed at 621 Camden St Ste 202, San Antonio, TX 78215. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Maria Theresa Castillo?
The number on file is (210) 253-3426. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Maria Theresa Castillo's NPI number?
Maria Theresa Castillo's National Provider Identifier is 1093792616. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Maria Theresa Castillo train?
Maria Theresa Castillo attended Other, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Maria Theresa Castillo been practicing?
Maria Theresa Castillo has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What procedures does Maria Theresa Castillo perform?
According to Medicare billing data, Maria Theresa Castillo the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Maria Theresa Castillo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Maria Theresa Castillo. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.