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Dr. John Ahn, DO

Dr. John Ahn, DO

Safety Harbor, FL

31 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Ahn, Gastroenterologist in Safety Harbor, FL?

    Dr. John Ahn, DO is a Gastroenterologist, who primarily practices in Safety Harbor, FL. He has been practicing for over 31 years and is board certified. Dr. Ahn graduated from New York College Of Osteopathic Medicine and completed his residency at Long Island Jewish Med Ctr, Gastroenterology; Long Island Jewish Med Ctr, Internal Medicine. Dr. Ahn is fluent in English and Korean, and is currently seeing new patients. Dr. Ahn’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ahn’s office at (727) 669-5849.

    Where did Dr. Ahn go to medical school and complete their residency?

    • Residency: Long Island Jewish Med Ctr, Gastroenterology; Long Island Jewish Med Ctr, Internal Medicine | Long Island Jewish Med Center

    • Medical School: Ny Coll Of Osteo Med Of Ny Inst Of Tech- Old Westbury Ny | New York College Of Osteopathic Medicine | New York College Of Osteopathic Medicine | New York Institute of Technology College of Osteopathic Medicine

    Is Dr. Ahn board certified as a Gastroenterologist?

    Yes, Dr. John Ahn, DO is board certified by the American Board of Internal Medicine

    What languages does Dr. Ahn speak?

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

    • English

    • Korean

    What conditions does Dr. Ahn treat?

    As a Gastroenterologist, Dr. Ahn 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. Ahn. 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:

    • Colon Cancer Screening
    • Health Screening
    • Colorectal Cancer Screening (PDQ®)
    • Screening Tests to Detect Colorectal Cancer and Polyps
    • Tests to Detect Colorectal Cancer and Polyps
    • Colorectal Cancer Screening
    • Colonoscopy Screening
    • Bowel Cancer Screening

    ICD-10 Codes:

    • Z1211: Encounter for screening for malignant neoplasm of colon

    Also known as:

    • Acid Reflux
    • GERD with Esophagitis
    • GERD
    • Acid Reflux (GER & GERD) in Adults
    • Acid Reflux (GER & GERD) in Children
    • Acid Reflux (GER & GERD) in Infants
    • Eosinophilic Esophagitis
    • Gastroesophageal Reflux
    • Heartburn
    • Indigestion
    • Reflux Esophagitis
    • Acid Reflux Esophagus Inflammation
    • Heartburn with Esophagus Damage

    ICD-10 Codes:

    • K219: Gastro-esophageal reflux disease without esophagitis
    • K2100: Gastro-esophageal reflux disease with esophagitis, without bleeding

    Also known as:

    • Colon Polyps
    • Colonic Polyps
    • Colorectal Polyps
    • Intestinal Polyps
    • Bowel Polyps

    ICD-10 Codes:

    • Z86010: Personal history of colon polyps

    Also known as:

    • History of Adenomatous and Serrated Colon Polyps
    • Past Colon Polyps
    • Previous Adenomas
    • History of Precancerous Colon Growths

    ICD-10 Codes:

    • Z860101: Personal history of adenomatous and serrated colon polyps

    Also known as:

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

    ICD-10 Codes:

    • R1310: Dysphagia, unspecified

    Also known as:

    • Rectal Bleeding
    • Gastrointestinal Bleeding
    • Gastrointestinal (GI) Bleeding
    • Anal Bleeding
    • Blood in Stool
    • Lower GI Bleed

    ICD-10 Codes:

    • K625: Hemorrhage of anus and rectum

    What procedures does Dr. Ahn perform?

    As a Gastroenterologist, Dr. Ahn 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. Ahn. 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:

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

    CPT Codes:

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

    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 Upper Endoscopy with Biopsy
    • Flexible Sigmoidoscopy with Biopsy
    • EGD with Esophageal Balloon Dilation
    • Colonoscopy with Injections
    • Colorectal Cancer Screening Tests
    • Colonoscopy
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Sigmoid Colon Scope with Biopsy
    • Lower Endoscopy with Tissue Sample
    • Flexible Sigmoidoscopy and Biopsy
    • Rectum and Lower Colon Exam
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy

    CPT Codes:

    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance

    Also known as:

    • Esophageal Dilation (Bougie)
    • Esophageal Widening
    • Bougie Dilation of Esophagus
    • Swallowing Tube Dilation

    CPT Codes:

    • 43450: Dilation of esophagus, by unguided sound or bougie, single or multiple passes

    Also known as:

    • ERCP with Sphincterotomy
    • ERCP with Stent Placement
    • Endoscopic retrograde cholangiopancreatography
    • Bile duct scope
    • Pancreatic duct scope
    • Papillotomy
    • Endoscopic Retrograde Cholangiopancreatography with Stent
    • Bile Duct Stent Placement via ERCP
    • Pancreatic Duct Stent Placement via ERCP

    CPT Codes:

    • 43262: Endoscopic retrograde cholangiopancreatography (ERCP); with sphincterotomy/papillotomy
    • 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

    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:

    • 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:

    • Hemorrhoid Removal with Rubber Band Ligation
    • Rubber Band Ligation for Hemorrhoids
    • Internal Hemorrhoid Ligation
    • Banding of Hemorrhoids
    • Hemorrhoid Banding

    CPT Codes:

    • 46221: Hemorrhoidectomy, internal, by rubber band ligation(s)

    Also known as:

    • Upper Endoscopy with Polyp Removal
    • EGD with Polypectomy
    • Esophagus, Stomach, Duodenum Scope with Removal
    • Flexible Endoscopy Tumor Excision

    CPT Codes:

    • 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    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:

    • Capsule Endoscopy
    • Pill Camera
    • Wireless Capsule Endoscopy
    • Small Bowel Capsule Endoscopy
    • Intestinal Imaging Pill

    CPT Codes:

    • 91110: Gastrointestinal tract imaging, intraluminal (eg, capsule endoscopy), esophagus through ileum, with interpretation and report

    Does Dr. Ahn accept my insurance?

    Dr. Ahn accepts most major insurance plans. Important: Please call our office at (727) 669-5849 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Ahn accept in Safety Harbor, FL?

    Dr. Ahn in Safety Harbor, FL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • BayCare Health System

    • Centene

    • CVS Health (formerly Aetna)

    • Express Scripts

    • Florida Blue / Guidewell

    • Humana

    • Medicare

    • MedImpact

    • State of Tennessee

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Ahn's office located?

    Dr. John Ahn's Primary Practice

    1840 Mease Dr Ste 305

    Safety Harbor, FL 34695

    (727) 669-5849

    Get Directions

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

    Dr. Ahn's National Provider Identifier (NPI) number is 1598790701.

    What common questions do patients ask about Dr. Ahn?

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

    What is Dr. John Ahn's specialty?

    Dr. Ahn is a Gastroenterologist near Safety Harbor, FL. 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. Ahn to book an appointment today.

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

    Yes, Dr. Ahn is affiliated with Morton Plant Hospital, St. Joseph's Hospital - Tampa 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 Ahn accepting new patients in Safety Harbor, FL?

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

    Does Dr. John Ahn offer online booking?

    Please contact Dr. Ahn's office at (727) 669-5849 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with John Ahn?

    Please contact Dr. Ahn's office at (727) 669-5849 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. John Ahn have?

    Dr. John Ahn is certified by the American Board of Internal Medicine.

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