Dr. Christopher Calabria, MD
Allergy & Immunology (Allergy & Immunology Physician)
7835 W Ih 10, Dilley Allergy And Asthma Specialists
San Antonio, TX 78230
- Medicare participating
At a glance
- Medical school
- University of Maryland School of Medicine (2001)
- Years since graduation
- 25
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 233
Licensed in Texas since 2008, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2001Medical school: University of Maryland School of Medicine
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Allergy & Immunology Physician primary
TX license M8568 (first issued 2008; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Medical groups
- Dilley Allergy and Asthma Specialists LLP (3 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 233
- Services billed
- 9,929
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Test for allergy using allergenic extract | 7,875 | 110 |
| Professional service for preparation and provision of 1 or more antigens | 704 | 59 |
| Professional service for multiple injections of allergen | 702 | 37 |
| Professional service for single injection of allergen | 581 | 32 |
| Established patient office or other outpatient visit, 30-39 minutes | 245 | 161 |
| New patient office or other outpatient visit, 45-59 minutes | 86 | 85 |
| Established patient office or other outpatient visit, 20-29 minutes | 40 | 15 |
| Test to measure expiratory airflow and volume | 15 | 15 |
| Test to measure expiratory airflow and volume changes before and after medication administration | 12 | 12 |
| Ct scan of face without contrast | 12 | 11 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Montelukast Sodium Other prescribers in San Antonio, TX | 198 |
| Azelastine Hcl Other prescribers in San Antonio, TX | 183 |
| Fluticasone Propionate Other prescribers in San Antonio, TX | 152 |
| Ipratropium Bromide Other prescribers in San Antonio, TX | 84 |
| Albuterol Sulfate Hfa (albuterol sulfate) Other prescribers in San Antonio, TX | 76 |
| Trelegy Ellipta (fluticasone/umeclidin/vilanter) Other prescribers in San Antonio, TX | 73 |
| Azithromycin Other prescribers in San Antonio, TX | 61 |
| Prednisone Other prescribers in San Antonio, TX | 58 |
| Levocetirizine Dihydrochloride Other prescribers in San Antonio, TX | 39 |
| Xolair (omalizumab) | 39 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 15 companies reported 45 payments worth $1,134 in total to this clinician.
| AstraZeneca Pharmaceuticals LP | $206 |
|---|---|
| Ars Pharmaceuticals Operations, Inc. | $153 |
| Genzyme Corporation | $147 |
| Regeneron Healthcare Solutions, Inc. | $143 |
| GlaxoSmithKline, LLC. | $86.14 |
| Takeda Pharmaceuticals U.S.A., Inc. | $76.22 |
| Novartis Pharmaceuticals Corporation | $75.90 |
| Alk-abello, Inc | $42.48 |
| Food and Beverage | $1,134 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.