DR. ADRIANA CASTILLO M.D.
NPI 1639580392
Family Medicine in San Marcos, TX

Active since May 15, 2014PECOS EnrolledAccepts Medicare Assignment
601 LEAH AVE STE A, SAN MARCOS, TX 78666(512) 396-1000(512) 353-2554 Get Directions Write a Review

NPPES record last updated: December 10, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 10, 2021, Jul 18, 2019 (2 updates tracked since 2019).

About Dr. Adriana Castillo M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ADRIANA CASTILLO M.D. (NPI 1639580392) is an individual family medicine provider in San Marcos, Texas, licensed in Texas (R0371) and active in the NPI registry since May 2014. She is enrolled in Medicare PECOS, is affiliated with Christus Santa Rosa Hospital-san Marcos, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1639580392
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. ADRIANA CASTILLOCredential: M.D.
Location Address601 LEAH AVE STE ASan Marcos, TX 78666-7849
Mailing Address601 Leah Ave Ste ASan Marcos, TX 78666-7849 · (512) 396-1000
Fax(512) 353-2554
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateMay 15, 2014
Last NPPES UpdateDecember 10, 20212 updates tracked since enumeration
NPPES CertifiedDecember 10, 2021
NPI 1639580392 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in TX · R0371
Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

601 LEAH AVE STE A, San Marcos, TX 78666

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Adriana Castillo M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456621242
PECOS Enrollment IDI20170727001424
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 21

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
260 services149 patients
Blood test, comprehensive group of blood chemicals 80053
A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.
242 services141 patients
Blood test, lipids (cholesterol and triglycerides) 80061
A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.
209 services131 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
200 services17 patients
Urine microalbumin (protein) analysis 82044
Urine microalbumin analysis is a test that measures the amount of a protein called albumin in your urine. This protein is usually present in very small amounts, but higher levels can indicate kidney issues. The test is non-invasive and involves a simple urine sample.
159 services125 patients
Creatinine level to test for kidney function or muscle injury 82570
A creatinine level test measures the amount of creatinine in your blood. This substance is a waste product from normal muscle use. Higher levels can indicate possible kidney dysfunction or muscle injury. This test helps monitor kidney health.
159 services125 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus Santa Rosa Hospital-San Marcos

Acute Care Hospitals · San Marcos, TX
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number450272
Location1301 Wonder World DriveSan Marcos, TX 78666 · Hays County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78666 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
6 suppliers21 claims42 services$5.91 avg. paid by Medicare
Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
6 suppliers15 claims15 services$33.14 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
6 suppliers13 claims69 services$1.75 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Family)
601 LEAH AVE STE A
SAN MARCOS, TX 78666
Family Medicine
601 LEAH AVE STE A
SAN MARCOS, TX 78666

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Adriana Castillo's NPI number?

The NPI number for Adriana Castillo is 1639580392. It was assigned to this individual provider in the NPPES registry on May 15, 2014.

Where is Adriana Castillo located?

Adriana Castillo practices at 601 Leah Ave Ste A, San Marcos, TX 78666. The listed phone number is (512) 396-1000.

What is Adriana Castillo's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Adriana Castillo enrolled in Medicare?

Yes. Adriana Castillo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Adriana Castillo accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 6 other insurers list Adriana Castillo as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Adriana Castillo affiliated with any hospitals?

According to CMS data, Adriana Castillo is affiliated with Christus Santa Rosa Hospital-San Marcos.

When was this NPI record last updated?

The NPPES record for Adriana Castillo was last updated on December 10, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.