Adam Casillas, PA-C
NPI 1083918346 · Physician Assistant · San Antonio, TX
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adam Casillas, PA-C is a Physician Assistant provider in San Antonio, TX (NPI 1083918346).
Provider details
- NPI number
- 1083918346
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
268 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 72 | $50 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 55 | $11 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 45 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 43 | $100 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 41 | $4 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 28 | — |
| Azithromycin | 26 | 26 |
| Tamsulosin Hcl | 23 | — |
| Amlodipine Besylate | 15 | — |
| Fluticasone Propionate | 13 | 13 |
| Lisinopril | 13 | — |
| Dulaglutidebrand: Trulicity | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$600 across 28 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-12-30
- Last updated
- 2017-01-25
Frequently asked questions
- What is Adam Casillas's NPI number?
- Adam Casillas's National Provider Identifier (NPI) is 1083918346, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adam Casillas's specialty?
- Adam Casillas is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Adam Casillas located?
- Adam Casillas's practice location on file with NPPES is 8503 Nw Military Hwy, San Antonio, TX 78230-2448.
- What is Adam Casillas's phone number?
- The practice phone number listed in the NPPES registry for Adam Casillas is (210) 492-8200.
- Does Adam Casillas accept Medicare?
- Adam Casillas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adam Casillas's NPI active?
- Yes — Adam Casillas's NPI (1083918346) is active in the NPPES registry as of the last update on 2017-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.