John Quiles, M.D.
Gastroenterology (CMS) · San Antonio, TX
At a glance
4502 Medical Dr, San Antonio, TX 78229-4402
Published activity: Colonoscopy · Upper gastrointestinal (GI) endoscopy for acid reflux. View counts and coverage
NPPES record updated Aug 26, 2025. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
4502 Medical DrSan Antonio, TX 78229-4402
Additional reported practice locations
2101 Jackson St Ste 101Anderson, IN 460164386
Phone: 7656096063 3551 Roger Brooke Dr
Fort Sam Houston, TX 782344504
Phone: 2105399582 · Ext. 30131
Education & affiliations
- Medical / professional school
- Uniformed Services Uhs Fe Hebert School Of Med
- Graduation year
- 2009
- CMS specialties
- Gastroenterology
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
Reported hospital affiliations
- Baptist Medical Center San Antonio, TX
- Christus Santa Rosa Medical Center San Antonio, TX
- Methodist Hospital San Antonio, TX
- Westover Hills Baptist Hospital San Antonio, TX
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 63 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 232 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $82.99 |
Reporting companies
| Company | Amount |
|---|---|
| QOL MEDICAL, LLC | $35.85 |
| JANSSEN BIOTECH, INC. | $17.75 |
| NOVO NORDISK INC | $15.58 |
| BOSTON SCIENTIFIC CORPORATION | $13.81 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Gastroenterology (CMS)
- Taxonomy code
- 207RG0100X
- Enumeration date
- Jun 22, 2009
- Record updated
- Aug 26, 2025
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207R00000X
License reported: 0101249078 VA
207RG0100X
License reported: 01079498A IN
207RG0100X
License reported: 0101249078 VA
390200000X
207RG0100X · Primary
License reported: T1181 TX
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
4502 Medical DrSan Antonio, TX 78229-4402
- Phone
- (210) 358-4000
Mailing address
3551 ROGER BROOKE DRFORT SAM HOUSTON, TX 782344504
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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