Juan Castano
NPI 1427404839 · Gastroenterology Physician · Mcallen, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Juan Castano is a Gastroenterology Physician provider in Mcallen, TX (NPI 1427404839).
Provider details
- NPI number
- 1427404839
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- S3131 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
493 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 125 | $85 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 96 | $79 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 71 | $107 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 62 | $93 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 38 | $226 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 260 | 148 |
| Famotidine | 65 | 36 |
| Esomeprazole Magnesium | 63 | 36 |
| Pantoprazole Sodium | 54 | 28 |
| Linaclotidebrand: Linzess | 47 | 24 |
| Dicyclomine Hcl | 28 | 21 |
| Sucralfate | 25 | 16 |
| Metronidazole |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$122 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 305 Lorenaly DrBrownsville, TX 78526-4333Phone: (956) 365-4400Fax: (956) 365-4111
- 512 Victoria Ln Ste 2Harlingen, TX 78550-3227Phone: (956) 365-4400Fax: (956) 365-4111
Registry dates
- Enumerated
- 2016-05-05
- Last updated
- 2023-05-17
- Certified
- 2023-05-17
Frequently asked questions
- What is Juan Castano's NPI number?
- Juan Castano's National Provider Identifier (NPI) is 1427404839, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Juan Castano's specialty?
- Juan Castano is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Juan Castano located?
- Juan Castano's practice location on file with NPPES is 533 Pecan Blvd, Mcallen, TX 78501-2356.
- What is Juan Castano's phone number?
- The practice phone number listed in the NPPES registry for Juan Castano is (956) 365-4400.
- Does Juan Castano accept Medicare?
- Juan Castano is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Juan Castano's NPI active?
- Yes — Juan Castano's NPI (1427404839) is active in the NPPES registry as of the last update on 2023-05-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.