Juliann Garza Castillo, PH.D, PA-C
Physician Assistant · McAllen, TX
Juliann Garza Castillo, PH.D, PA-C is a physician assistant with a practice address in McAllen, Texas, and NPI 1396103909, issued on Feb 10, 2016. Check the license (Texas PA03496, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Juliann Garza Castillo
- Credential
- PH.D, PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA03496 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3600 N 23RD St Ste 103, McAllen, TX 78501
- Phone
- (956) 682-4401
- Enumerated
- Feb 10, 2016
- Record last updated
- Mar 20, 2024
- Fax
- (956) 664-9081
- Medicare enrollment
- Enrolled (PECOS I20210520000166); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 10,999 in Texas → Look up another NPI →
Also registered at 3600 N 23RD St Ste 103
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Juliann Garza Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license PA03496Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average physician assistant in 2024
922 Medicare Part D claims for 134 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Trazodone Hcl65 claims
- Clonazepam63 claims
- Mirtazapine61 claims
- Zolpidem Tartrate53 claims
- Lorazepam47 claims
- Alprazolam44 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $799.89
23 payments; by number, the most common kind was food and beverage; the largest payer was Axsome Therapeutics, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Jose E Igoa MD PAMcAllen, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Juliann Garza Castillo among 10,999 physician assistant records in Texas
Juliann Garza Castillo, PH.D, PA-C is one of 10,999 physician assistant records with a practice address in Texas. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 48% of them.
- NPI issued2016 · 48% of these records are older, 48% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1999 · median 2017 among the 6,096 with a school on file
- Record last updated2024 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
144 physician assistant records list a practice address in McAllen
They are 144 of the 3,518 NPPES records with a practice address in McAllen, and 10,999 physician assistant records in Texas.
All 10,999 in Texas → Every provider in McAllen → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Melissa Ale, PA-CMcAllen, TX 785011134288632
- Javier Barbosa, PA-CMcAllen, TX 785011467549758
- Nancy Garza, PAMcAllen, TX 785011134539588
- Myra Guerra, MPAS, PA-CMcAllen, TX 785011417252313
- Michael Hahn, MPASMcAllen, TX 785011225059033
- Sergio LozanoMcAllen, TX 785011326464447
- Carolina Mendez, PA-CMcAllen, TX 785011396097176
- Patricia Mendoza, PAMcAllen, TX 785011144348798
Common questions
What is Juliann Garza Castillo, PH.D, PA-C's NPI number?
Juliann Garza Castillo, PH.D, PA-C's National Provider Identifier (NPI) is 1396103909, issued on Feb 10, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Juliann Garza Castillo, PH.D, PA-C located?
The NPPES record lists a practice address at 3600 N 23RD St Ste 103, McAllen, TX, 78501. Phone: (956) 682-4401. Providers update this record themselves, so call before visiting.
How can I verify Juliann Garza Castillo, PH.D, PA-C's license?
NPPES lists Texas license number PA03496, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Juliann Garza Castillo, PH.D, PA-C prescribe under Medicare Part D?
In 2024, Juliann Garza Castillo, PH.D, PA-C had 922 Medicare Part D claims for 134 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.