Dr. John Quiles, MD
- Medicare services, 2024
- 253
- Medicare patients, 2024
- 164
- Part D claims, 2018
- 11
- Publications
- 5
- Hospital affiliations
- 5
- Practice address
- 621 Camden Street, San Antonio, TX 78215
- Practice phone
- Call (210) 253-3430
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
GAB Endoscopy Center
Surgery Center - Medicare-Certified · San Antonio, Texas
Find Dr. Quiles' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Quiles is a gastroenterologist in San Antonio, Texas
Dr. Quiles practices at GAB Endoscopy Center in San Antonio, Texas.
Dr. Quiles' NPI, 1033347695, was assigned on June 22, 2009. Dr. Quiles graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 2009. Dr. Quiles holds Texas license T1181.
- NPI
- 1033347695NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931340338
- NPI enumeration date
- June 22, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (210) 253-3430
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Quiles practices at GAB Endoscopy Center in San Antonio, Texas
Dr. Quiles' primary practice is GAB Endoscopy Center, at 621 Camden Street, San Antonio, TX 78215. The practice phone is (210) 253-3430.
- GAB Endoscopy Center621 Camden Street, San Antonio, TX 78215Phone(210) 253-3430
Source: Dmand AI Affiliation Data
Dr. John Quiles is affiliated with 7 sites of care and 5 medical groups
Dr. Quiles' primary practice is GAB Endoscopy Center in San Antonio, Texas. Dr. Quiles is also affiliated with University Hospital. The medical group on file is Texas Digestive Disease Consultants. Dmand AI also links Dr. Quiles to 4 more hospitals, 4 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Quiles' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Quiles practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| GAB Endoscopy Center | Available with a free account |
| +6 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Quiles is one of 1,341 gastroenterologists in Texas
Gastroenterology is Dr. Quiles' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Quiles is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Quiles' licenses on file in 3 states: Texas, Indiana and Virginia.
Specialties and state licenses
- Gastroenterology, TexasPrimary
- Indiana license
- Internal medicine, Virginia
Clinical focus
Dmand AI lists acute gallbladder or bile duct inflammation, colonoscopy and upper GI endoscopy among the conditions Dr. Quiles treats.
Gastroenterologists near Dr. Quiles
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Quiles billed Medicare for 253 services in 2024
CMS data shows 253 Medicare services from Dr. Quiles across 7 procedure codes in 2024, for 164 Medicare patients. Medicare paid $21,797 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Quiles' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1902024: 21111%
- Surgery
- 2023: 292024: 4245%
Dr. Quiles compared with the Texas median for gastroenterologists, 2024
- Dr. Quiles
- Texas median
- Medicare services
- 253vs 50550% below
- Medicare patients
- 164vs 28442% below
- Part D claims
- 11vs 49398% below
Medians across 1,281 gastroenterologists in Texas with Dmand AI profiles that report each measure.
Dr. Quiles' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Quiles?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Quiles and other gastroenterologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Quiles treated 164 Medicare patients in 2024, average age 75
CMS counts 164 Medicare patients who saw Dr. Quiles in 2024. The largest group is 65 to 74, with 66 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Quiles' median patient age at 64, with 51% women.
Dr. Quiles' Medicare patients by age, 2024
Dr. Quiles' Medicare patients by sex, 2024
- Women7848%
- Men8652%
Chronic conditions among Dr. Quiles' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes62%
- Ischemic heart disease60%
- Chronic kidney disease55%
- Heart failure50%
- Arthritis47%
- Mood disorders42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Quiles' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Quiles wrote 11 Medicare Part D claims in 2018
In 2018, Dr. Quiles wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $49 in total drug cost.
Dr. Quiles' most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. John Quiles ranks in the 92nd percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Quiles accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Quiles as offering telehealth. CMS counts 232 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Quiles, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Quiles ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 92nd percentile232 procedures
- Colonoscopy
- 69th percentile63 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Quiles has 5 publications on record
Dmand AI links 5 papers to Dr. Quiles, published from 2021 to 2024. 2023 was the busiest year, with 2. Dr. Quiles has published most often in ACG Case Rep J. Dr. Quiles' most frequent co-authors are Peter B. Cotton, MD, Michael Austin Craig, MD and Cyrus Veryl Edelson, MD.
Dr. Quiles' papers by year, 2021 to 2024
Dr. Quiles' most frequent co-authors
- Peter B. Cotton, MD1 shared paper
- Michael Austin Craig, MD1 shared paper
- Cyrus Veryl Edelson, MD1 shared paper
Recent publications by Dr. Quiles
Tech Innov Gastrointest Endosc
See who Dr. Quiles researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Quiles works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Quiles received $5,205 in industry payments from 2018 to 2025
CMS Open Payments shows 52 general payments to Dr. Quiles from 10 drug and device companies from 2018 to 2025. Travel and lodging make up the largest share, 60% of the total. Boston Scientific Corporation paid the most, $2,151.
General payments to Dr. Quiles by program year, 2018 to 2025
General payments to Dr. Quiles by kind, 2018 to 2025
- Travel and lodging$3,11660%
- Food and beverage$1,46628%
- Education$54811%
- Grants$751%
Companies that paid Dr. Quiles the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Quiles graduated from Uniformed Services University, F. Edward Hebert School of Medicine
Dr. Quiles graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 2009.
- Medical school
- Board certified in gastroenterology
Source: Dmand AI Professional Profile Data
Dr. John Quiles accepts plans from 24 insurance carriers
Dr. Quiles is in network with 24 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Humana
- Molina
- +16 more carriersWith a free account
Plan types Dr. Quiles accepts, by number of carriers
- HMO13
- PPO13
- Medicare12
- POS6
- EPO4
- Medicaid4
Source: Dmand AI Insurance Network Data
Sources for Dr. John Quiles's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Quiles
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Quiles' NPI number?
Dr. John Quiles' NPI number is 1033347695. It was assigned on June 22, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. John Quiles?
Dr. John Quiles is a gastroenterologist in San Antonio, Texas. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. John Quiles practice?
Dr. Quiles practices at 621 Camden Street, San Antonio, TX 78215. Dr. Quiles' primary practice is GAB Endoscopy Center in San Antonio, Texas. Dmand AI also links Dr. Quiles to 4 hospitals, 4 medical groups and 1 group practice or clinic.
What is Dr. John Quiles' office phone number?
The practice phone on file for Dr. Quiles is (210) 253-3430.
What is Dr. John Quiles' medical license number?
Dr. Quiles holds Texas license T1181, one of the licenses on file in 3 states.
Which states has Dr. John Quiles been licensed in?
Dmand AI has state licenses on file for Dr. Quiles in Texas (2021 to 2027), Indiana and Virginia (2011 to 2026).
Which hospitals is Dr. John Quiles affiliated with?
Dr. Quiles is affiliated with University Hospital. Dmand AI links Dr. Quiles to 4 more hospitals.
What medical group is Dr. John Quiles part of?
Dr. Quiles is linked to Texas Digestive Disease Consultants. Dmand AI links Dr. Quiles to 4 more medical groups.
Does Dr. John Quiles accept Medicare?
Yes. CMS data shows Dr. Quiles billed Medicare for 253 services in 2024, and Dr. Quiles accepts Medicare assignment.
Does Dr. John Quiles offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Quiles as offering telehealth services.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. John Quiles see?
CMS counts 164 Medicare patients who saw Dr. Quiles in 2024, with an average age of 75.
Is Dr. John Quiles board certified?
Yes. Dr. Quiles is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. John Quiles bill to Medicare?
In 2024, Dr. Quiles' most billed Medicare services were hospital inpatient care (99222), hospital inpatient care (99233) and hospital inpatient care (99232).
Where did Dr. John Quiles go to medical school?
Dr. Quiles graduated from Uniformed Services University, F. Edward Hebert School of Medicine in 2009.
What drugs does Dr. John Quiles prescribe most?
In 2018 Medicare Part D data, Dr. Quiles' most prescribed drugs by claims were Ciprofloxacin HCl.
Has Dr. John Quiles received payments from drug or device companies?
CMS Open Payments shows $5,205 in general payments to Dr. Quiles from 10 companies from 2018 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. John Quiles been practicing?
Dr. Quiles graduated from medical school in 2009, 17 years ago.
Does Dr. John Quiles do research?
Dmand AI links 5 publications to Dr. Quiles, published from 2021 to 2024.
Who does Dr. John Quiles publish with?
Dr. Quiles' most frequent co-authors are Peter B. Cotton, MD (1 shared paper), Michael Austin Craig, MD (1 shared paper) and Cyrus Veryl Edelson, MD (1 shared paper).
What insurance does Dr. John Quiles accept?
Dr. Quiles is in network with 24 carriers, including Elevance, Aetna and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 13. Check the plan with the practice before a visit.
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