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PROF. JULIANN GARZA CASTILLO PH.D, PA-C
NPI 1396103909
Physician Assistant in Mcallen, TX

Active since February 10, 2016PECOS EnrolledAccepts Medicare Assignment
3600 N 23RD ST STE 103, MCALLEN, TX 78501(956) 682-4401(956) 664-9081 Get Directions Write a Review

NPPES record last updated: March 20, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Prof. Juliann Garza Castillo Ph.d, Pa-c NPPES

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

PROF. JULIANN GARZA CASTILLO PH.D, PA-C (NPI 1396103909) is an individual physician assistant in Mcallen, Texas, licensed in Texas (PA03496) and active in the NPI registry since February 2016. She is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1396103909
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NamePROF. JULIANN GARZA CASTILLOCredential: PH.D, PA-C
Location Address3600 N 23RD ST STE 103Mcallen, TX 78501-6081
Mailing Address3600 N 23rd St Ste 103Mcallen, TX 78501-6081 · (956) 369-6152 · Fax (956) 664-9081
Phone(956) 682-4401
Fax(956) 664-9081
Sole ProprietorYes
Medical School CMSOtherGraduated 1999
Enumeration DateFebruary 10, 2016
Last NPPES UpdateMarch 20, 2024
NPPES CertifiedMarch 20, 2024
✔ NPI 1396103909 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in TX · PA03496
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
3600 N 23RD ST STE 103, Mcallen, TX 78501
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Prof. Juliann Garza Castillo Ph.d, Pa-c 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 ID5991104192
PECOS Enrollment IDI20210520000166
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 2

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.
23 services19 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
16 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78501 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
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

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

BELEN LAQUI RAMOS PA-C
Physician Assistant
3600 N 23RD ST STE 103
MCALLEN, TX 78501
Hidalgo County (956) 682-4401
MS. MEGAN NICOLE CHAVEZ PA-C
Physician Assistant
3600 N 23RD ST STE 103
MCALLEN, TX 78501
Hidalgo County (956) 664-9081
JAVIER SUAREZ JARAMILLO PA-C
Physician Assistant
3600 N 23RD ST STE 103
MCALLEN, TX 78501
Hidalgo County (956) 682-4401

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 Juliann Castillo's NPI number?

The NPI number for Juliann Castillo is 1396103909. It was assigned to this individual provider in the NPPES registry on February 10, 2016.

Where is Juliann Castillo located?

Juliann Castillo practices at 3600 N 23rd St Ste 103, Mcallen, TX 78501. The listed phone number is (956) 682-4401.

What is Juliann Castillo's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Juliann Castillo enrolled in Medicare?

Yes. Juliann 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 Juliann Castillo accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 2 other insurers list Juliann 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.

When was this NPI record last updated?

The NPPES record for Juliann Castillo was last updated on March 20, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.