Doctor profile · Federal record

Dr. Adam Casillas, PA-C

Physician Assistant · San Antonio, TX

  • NPI 1083918346
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8503 Nw Military Hwy
San Antonio, TX 782302448
(210) 492-8200
Mailing address
8503 Nw Military Hwy
San Antonio, TX 782311841

Credentials & registration

NPPES · NUCC
NPI registered
December 2010 — 16 yrs on file
Profile last updated
January 25, 2017
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
363A00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083918346. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
176
Distinct HCPCS
5
Medicare allowed
$6,554
HCPCS Description Services Patients Avg allowed
96372 Injection of drug or substance under skin or into muscle 70 14 $12
99213 Established patient office or other outpatient visit, 20-29 minutes 45 40 $74
36415 Insertion of needle into vein for collection of blood sample 33 21 $4
99214 Established patient office or other outpatient visit, 30-39 minutes 17 12 $105
99212 Established patient office or other outpatient visit, 10-19 minutes 11 11 $46

In context: peer comparison

Among 152 peers in San Antonio Physician Assistant, average services per provider: 100. This provider delivers 1.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$600
Transactions
28
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 11 $257.18
Lilly USA, LLC 8 $190.19
Abbott Laboratories 2 $35.84
Bayer Healthcare Pharmaceuticals INC. 2 $30.72
Dexcom, INC. 1 $23.49
Axsome Therapeutics, INC. 1 $18.66
Boehringer Ingelheim Pharmaceuticals, INC. 1 $15.65
ViiV Healthcare Company 1 $15.09
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 1 $13.47

By nature of payment

Food and Beverage
$600

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
85
Patients
59
Total drug cost
$1,027
Drug Type Claims Patients Total cost
Azithromycin Generic 26 23 $156
Azelastine Hcl Generic 13 12 $412
Methylprednisolone Generic 13 13 $108
Lisinopril Generic 11 0 $145
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 11 11 $190
Prednisone Generic 11 0 $15

Frequently asked questions

Auto-generated from federal data
What is Dr. Adam Casillas's medical specialty?
Dr. Adam Casillas practices Physician Assistant in San Antonio, TX.
Where does Dr. Adam Casillas practice?
Dr. Adam Casillas practices at 8503 Nw Military Hwy, San Antonio, TX 782302448. Office phone: 2104928200.
What is Dr. Adam Casillas's NPI?
Dr. Adam Casillas's National Provider Identifier (NPI) is 1083918346, issued by NPPES.
Does Dr. Adam Casillas accept Medicare assignment?
Yes. Dr. Adam Casillas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Adam Casillas commonly perform?
Top Medicare-reported procedures in 2023: Injection of drug or substance under skin or into muscle (HCPCS 96372); Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.