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Dr. John Quiles, MD

San Antonio, TX

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Quiles, Gastroenterologist in San Antonio, TX?

    Dr. John Quiles, MD is a Gastroenterologist, who primarily practices in San Antonio, TX with 2 additional practice locations. Dr. Quiles is fluent in English and Spanish, and is currently seeing new patients. Dr. Quiles’s practice accepts Cigna, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Quiles’s office at (210) 253-3422.

    What languages does Dr. Quiles speak?

    Dr. Quiles and their clinical team can communicate with patients in the following languages:

    • English

    • Spanish

    What conditions does Dr. Quiles treat?

    As a Gastroenterologist, Dr. Quiles diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Quiles. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Dark, Tarry Stools (Melena)
    • Gastrointestinal Bleeding
    • Vomiting Blood
    • Gastrointestinal (GI) Bleeding
    • Nausea and Vomiting
    • Melena
    • Black Stools
    • Upper GI Bleed Signs
    • GI Bleeding
    • Internal Digestive Bleeding
    • Digestive Tract Hemorrhage
    • Hematemesis
    • Bloody Vomit
    • Upper GI Bleeding

    ICD-10 Codes:

    • K921: Melena
    • K922: Gastrointestinal hemorrhage, unspecified
    • K920: Hematemesis

    Also known as:

    • Abnormal Digestive Tract Imaging
    • Abnormal GI scan
    • Unusual digestive imaging
    • Digestive system imaging findings

    ICD-10 Codes:

    • R933: Abnormal findings on diagnostic imaging of other parts of digestive tract

    Also known as:

    • Bile Duct Stones
    • Gallstones
    • Choledocholithiasis
    • Biliary duct calculi

    ICD-10 Codes:

    • K8050: Calculus of bile duct without cholangitis or cholecystitis without obstruction

    Also known as:

    • Difficulty Swallowing
    • Swallowing Disorder
    • Dysphagia
    • Trouble swallowing
    • Painful swallowing

    ICD-10 Codes:

    • R1310: Dysphagia, unspecified

    Also known as:

    • Anemia
    • Low Red Blood Cell Count
    • Low Hemoglobin
    • Iron deficiency

    ICD-10 Codes:

    • D649: Anemia, unspecified

    What procedures does Dr. Quiles perform?

    As a Gastroenterologist, Dr. Quiles performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Quiles. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.

    Also known as:

    • Upper Endoscopy with Biopsy
    • Biopsy
    • Endoscopy
    • EGD with Biopsy
    • Gastroscopy with Biopsy
    • Esophagogastroduodenoscopy with Biopsy

    CPT Codes:

    • 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple

    Also known as:

    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy with Polyp Removal
    • Colonoscopy with Biopsy
    • Colonoscopy with Bleeding Control
    • Colonoscopy with Tissue Removal
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Endoscopic Hemostasis
    • Colonoscopy for Bleeding
    • Flexible colonoscopy with EMR
    • Endoscopic mucosal resection (colon)
    • Colon polyp removal during colonoscopy

    CPT Codes:

    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 45380: Colonoscopy, flexible; with biopsy, single or multiple
    • 45382: Colonoscopy, flexible; with control of bleeding, any method
    • 45390: Colonoscopy, flexible; with endoscopic mucosal resection

    Also known as:

    • Diagnostic Upper Endoscopy with Biopsy
    • EGD with Esophageal Balloon Dilation
    • EGD with Endoscopic Ultrasound
    • Flexible Sigmoidoscopy with Biopsy
    • Upper Endoscopy with Varices Banding
    • ERCP with Biopsy
    • Small Intestine Endoscopy with Biopsy
    • Upper Endoscopy with Injections
    • Colorectal Cancer Screening Tests
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • Upper GI Endoscopy with Ultrasound
    • EUS (Endoscopic Ultrasound)
    • Esophagus, Stomach, Duodenum Ultrasound
    • Sigmoid Colon Scope with Biopsy
    • Lower Endoscopy with Tissue Sample
    • Flexible Sigmoidoscopy and Biopsy
    • Rectum and Lower Colon Exam
    • EGD with Band Ligation
    • Esophageal Varices Banding
    • Gastric Varices Treatment
    • Endoscopic Retrograde Cholangiopancreatography with Biopsy
    • Bile Duct Biopsy (ERCP)
    • Pancreatic Duct Biopsy (ERCP)
    • Enteroscopy
    • Diagnostic Small Bowel Endoscopy
    • Small Bowel Scope
    • Enteroscopy with Biopsy
    • Small Bowel Endoscopy
    • Intestinal Biopsy (Endoscopic)
    • EGD with Submucosal Injections
    • Esophagogastroduodenoscopy with Injections
    • Stomach Scope with Medication

    CPT Codes:

    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 43237: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures
    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
    • 43244: Esophagogastroduodenoscopy, flexible, transoral; with band ligation of esophageal/gastric varices
    • 43261: Endoscopic retrograde cholangiopancreatography (ERCP); with biopsy, single or multiple
    • 44360: Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, not including ileum; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 44361: Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, not including ileum; with biopsy, single or multiple
    • 43236: Esophagogastroduodenoscopy, flexible, transoral; with directed submucosal injection(s), any substance

    Also known as:

    • ERCP with Stent Placement
    • ERCP with Sphincterotomy
    • ERCP with Bile or Pancreatic Duct Stent Removal
    • ERCP for Bile/Pancreatic Stent Exchange
    • Endoscopic Retrograde Cholangiopancreatography with Stent
    • Bile Duct Stent Placement via ERCP
    • Pancreatic Duct Stent Placement via ERCP
    • Endoscopic retrograde cholangiopancreatography
    • Bile duct scope
    • Pancreatic duct scope
    • Papillotomy
    • Endoscopic Retrograde Cholangiopancreatography
    • Bile Duct Stent Removal
    • Pancreatic Duct Foreign Body Removal
    • ERCP Stone Removal
    • Bile duct stent replacement (ERCP)
    • Endoscopic retrograde cholangiopancreatography with stent exchange
    • Biliary stent removal and replacement
    • Pancreatic duct stent exchange

    CPT Codes:

    • 43274: Endoscopic retrograde cholangiopancreatography (ERCP); with placement of endoscopic stent into biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent
    • 43262: Endoscopic retrograde cholangiopancreatography (ERCP); with sphincterotomy/papillotomy
    • 43275: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of foreign body(s) or stent(s) from biliary/pancreatic duct(s)
    • 43276: Endoscopic retrograde cholangiopancreatography (ERCP); with removal and exchange of stent(s), biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent exchanged

    Also known as:

    • ERCP with Gallstone Removal
    • ERCP
    • Endoscopic Gallstone Removal
    • Biliary Duct Stone Removal
    • Pancreatic Duct Cleaning

    CPT Codes:

    • 43264: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of calculi/debris from biliary/pancreatic duct(s)

    Also known as:

    • Upper Endoscopy with Ultrasound (EUS)
    • Upper Endoscopy with Polyp Removal
    • EGD with endoscopic ultrasound
    • Esophageal ultrasound
    • Stomach ultrasound endoscopy
    • Duodenal ultrasound endoscopy
    • EGD with Polypectomy
    • Esophagus, Stomach, Duodenum Scope with Removal
    • Flexible Endoscopy Tumor Excision

    CPT Codes:

    • 43259: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination, including the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis
    • 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    Also known as:

    • Upper Endoscopy with Ultrasound and Biopsy
    • Biopsy
    • Endoscopy
    • Ultrasound
    • EGD with Endoscopic Ultrasound Biopsy
    • Transoral EUS-FNA
    • Esophagogastroduodenoscopy with Biopsy

    CPT Codes:

    • 43242: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s) (includes endoscopic ultrasound examination of the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis)

    Also known as:

    • Feeding Tube Placement with Endoscopy
    • PEG Tube Placement
    • Gastrostomy Tube Insertion
    • EGD with Feeding Tube
    • Percutaneous Endoscopic Gastrostomy

    CPT Codes:

    • 43246: Esophagogastroduodenoscopy, flexible, transoral; with directed placement of percutaneous gastrostomy tube

    Also known as:

    • Stopping Bleeding in Esophagus, Stomach, or Duodenum
    • EGD with Bleeding Control
    • Upper GI Endoscopy for Bleeding
    • Gastric Bleeding Treatment

    CPT Codes:

    • 43255: Esophagogastroduodenoscopy, flexible, transoral; with control of bleeding, any method

    Also known as:

    • Upper Endoscopy for Foreign Body Removal
    • EGD for Foreign Body
    • Gastroscopy for Object Removal
    • Esophagogastroduodenoscopy for Foreign Body

    CPT Codes:

    • 43247: Esophagogastroduodenoscopy, flexible, transoral; with removal of foreign body(s)

    Also known as:

    • Flexible Sigmoidoscopy
    • Colorectal Cancer Screening Tests
    • Sigmoidoscopy
    • Lower colon exam
    • Flexible colon scope
    • Rectum and lower colon check

    CPT Codes:

    • 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Endoscopic Tube Placement into Bile or Pancreatic Duct
    • ERCP Cannulation
    • Bile Duct Cannulation
    • Pancreatic Duct Access (Endoscopic)

    CPT Codes:

    • 43273: Endoscopic cannulation of papilla with direct visualization of pancreatic/common bile duct(s) (List separately in addition to code(s) for primary procedure)

    Also known as:

    • Upper GI Scope with Stent Placement
    • EGD with Stent
    • Esophageal Stent Placement
    • Stomach Stent Insertion

    CPT Codes:

    • 43266: Esophagogastroduodenoscopy, flexible, transoral; with placement of endoscopic stent (includes pre- and post-dilation and guide wire passage, when performed)

    Also known as:

    • Upper GI Endoscopy with Ultrasound Biopsy
    • Biopsy
    • Endoscopy
    • Ultrasound
    • EGD with EUS-FNA
    • Endoscopic Ultrasound Biopsy
    • Esophageal/Stomach Biopsy

    CPT Codes:

    • 43238: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s), (includes endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures)

    Does Dr. Quiles accept my insurance?

    Dr. Quiles accepts most major insurance plans. Important: Please call our office at (210) 253-3422 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Quiles accept in San Antonio, TX?

    Dr. Quiles in San Antonio, TX accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • CVS Health (formerly Aetna)

    • Department of Defense / Tricare

    • Health Care Service Corporation (HCSC)

    • Humana

    • Medicare

    • Other Health Care Provider

    • State of Tennessee

    • State of Texas

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Quiles' office located?

    Dr. John Quiles' Primary Practice

    4502 Medical Dr

    San Antonio, TX 78229

    (210) 253-3422

    Get Directions

    Dr. John Quiles' Practice 2

    18118 FM 344 W

    Flint, TX 75762

    Get Directions

    Dr. John Quiles' Practice 3

    701 Olympic Plaza Cir

    Tyler, TX 75701

    Get Directions

    What is Dr. Quiles's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Quiles's National Provider Identifier (NPI) number is 1033347695.

    What common questions do patients ask about Dr. Quiles?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Quiles

    What is Dr. John Quiles's specialty?

    Dr. Quiles is a Gastroenterologist near San Antonio, TX. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Quiles to book an appointment today.

    Is this Dr. John Quiles affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Quiles is affiliated with Methodist Hospital - San Antonio, Baptist Medical Center - San Antonio, Methodist Hospital Metropolitan, University Hospital-San Antonio, Methodist Hospital Specialty and Transplant which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    Where can I learn more about Gastroenterologist?

    Explore Gastroenterologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is John Quiles accepting new patients in San Antonio, TX?

    Yes, Dr. John Quiles is accepting new patients at this time.

    Does Dr. John Quiles offer online booking?

    Please contact Dr. Quiles's office at (210) 253-3422 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with John Quiles?

    Please contact Dr. Quiles's office at (210) 253-3422 for information regarding telehealth appointment availability or for scheduling assistance.

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