Doctor profile · Federal record

Dr. Adriana Castillo, M.D.

Family Medicine Physician (CMS: Family Practice) · San Marcos, TX

  • NPI 1639580392
  • Accepts Medicare
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
601 Leah Ave Ste A
San Marcos, TX 786667849
(512) 396-1000
fax (512) 353-2554

Credentials & registration

NPPES · NUCC
NPI registered
May 2014 — 12 yrs on file
Profile last updated
December 10, 2021
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Texas #R0371

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639580392. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,408
Distinct HCPCS
10
Medicare allowed
$115,187
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 315 180 $121
80053 Blood test, comprehensive group of blood chemicals 270 170 $10
80061 Blood test, lipids (cholesterol and triglycerides) 221 152 $13
99213 Established patient office or other outpatient visit, 20-29 minutes 175 111 $87
82044 Urine microalbumin (protein) analysis 170 145 $6
82570 Creatinine level to test for kidney function or muscle injury 170 145 $5
G0444 Annual depression screening, 5 to 15 minutes 163 163 $18
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 153 153 $123
99497 Advance care planning, first 30 minutes 143 140 $79
83036 Hemoglobin a1c level 129 86 $9

In context: peer comparison

Among 11 peers in San Marcos Family Medicine Physician, average services per provider: 95. This provider delivers 25× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$483
Transactions
20
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
Supernus Pharmaceuticals, INC. 3 $147.41
Abbott Laboratories 3 $97.83
Lilly USA, LLC 2 $35.14
AstraZeneca Pharmaceuticals Lp 2 $33.25
Otsuka America Pharmaceutical, INC. 2 $32.50
Dexcom, INC. 1 $20.38
Exact Sciences Corporation 1 $19.68
Takeda Pharmaceuticals U.S.A., INC. 1 $18.18
Novo Nordisk INC 1 $18.10
GlaxoSmithKline, LLC. 1 $17.26
Currax Pharmaceuticals LLC 1 $15.44
Boehringer Ingelheim Pharmaceuticals, INC. 1 $14.16
Bayer Healthcare Pharmaceuticals INC. 1 $13.63

By nature of payment

Food and Beverage
$483

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,543
Patients
808
Total drug cost
$34,382
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 442 143 $5,326
Levothyroxine Sodium Generic 315 89 $4,919
Lisinopril Generic 274 93 $2,530
Metformin Hcl Generic 168 52 $1,627
Amlodipine Besylate Generic 166 53 $1,184
Tamsulosin Hcl Generic 158 49 $3,149
Omeprazole Generic 138 44 $1,782
Losartan Potassium Generic 126 41 $1,632
Simvastatin Generic 120 35 $1,454
Hydrochlorothiazide Generic 116 39 $508

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Adriana Castillo's medical specialty?
Dr. Adriana Castillo practices Family Medicine Physician in San Marcos, TX.
Where does Dr. Adriana Castillo practice?
Dr. Adriana Castillo practices at 601 Leah Ave Ste A, San Marcos, TX 786667849. Office phone: 5123961000.
What is Dr. Adriana Castillo's NPI?
Dr. Adriana Castillo's National Provider Identifier (NPI) is 1639580392, issued by NPPES.
Does Dr. Adriana Castillo accept Medicare assignment?
Yes. Dr. Adriana Castillo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Adriana Castillo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Blood test, comprehensive group of blood chemicals (HCPCS 80053); Blood test, lipids (cholesterol and triglycerides) (HCPCS 80061). Source: CMS Medicare Physician & Other Practitioners file.