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Dr. Douglas Riegert-Johnson, MD

Dr. Douglas Riegert-Johnson, MD

Jacksonville, FL

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Riegert-Johnson, Gastroenterologist in Jacksonville, FL?

    Dr. Douglas Riegert-Johnson, MD is a Gastroenterologist, who primarily practices in Jacksonville, FL with 1 additional practice location. He is board certified. Dr. Riegert-Johnson completed his residency at Mayo Clinic. Dr. Riegert-Johnson is fluent in English, and is currently seeing new patients. Dr. Riegert-Johnson’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Riegert-Johnson’s office at (904) 953-2000.

    What are Areas of Expertise for Dr. Riegert-Johnson?

    Dr. Douglas Riegert-Johnson, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Riegert-Johnson empowers patients to confidently navigate their health journey, specializing in Cancer Genetics, Colon & Rectal Cancer-Familial Polyposis, Endoscopy & Colonoscopy, Pancreatic Cancer, or comprehensive wellness support. Serving the Jacksonville/FL community, Dr. Riegert-Johnson is dedicated to enhancing lives through expert, patient-centered care.

    Where did Dr. Riegert-Johnson go to medical school and complete their residency?

    • Fellowship: Fellow - Gastroenterology: Mayo Graduate School of Medicine, Mayo Clinic College of Medicine | Fellow - Gastroenterology and Instructor of Medicine: Satter Family Cancer Research

    • Residency: Mayo Clinic | Johns Hopkins University Affiliated Hospitals

    Is Dr. Riegert-Johnson board certified as a Gastroenterologist?

    Yes, Dr. Douglas Riegert-Johnson, MD is board certified by the American Board of Internal Medicine , American Board of Medical Genetics

    What languages does Dr. Riegert-Johnson speak?

    Dr. Riegert-Johnson and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Riegert-Johnson treat?

    As a Gastroenterologist, Dr. Riegert-Johnson 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. Riegert-Johnson. 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:

    • Benign Colon Polyp
    • Benign Tumor
    • Colonic Disease
    • Colon Polyps
    • Non-cancerous colon growth
    • Colon adenoma
    • Benign colon tumor

    ICD-10 Codes:

    • D126: Benign neoplasm of colon, unspecified

    Also known as:

    • Stomach or Duodenum Polyp
    • Stomach and Duodenum Disorder
    • Stomach Disorder
    • Gastric Polyp
    • Duodenal Polyp
    • Stomach Growth
    • Gastric Conditions
    • Duodenal Conditions
    • Digestive System Disorders

    ICD-10 Codes:

    • K317: Polyp of stomach and duodenum
    • K3189: Other diseases of stomach and duodenum

    Also known as:

    • Heartburn
    • Acid Reflux
    • Indigestion
    • GERD Symptoms

    ICD-10 Codes:

    • R12: Heartburn

    Also known as:

    • Colorectal Cancer
    • Colon cancer
    • Rectal cancer
    • Bowel cancer
    • Malignant neoplasm of colon
    • Malignant neoplasm of rectum

    ICD-10 Codes:

    • C189: Malignant neoplasm of colon, unspecified
    • C20: Malignant neoplasm of rectum

    Also known as:

    • Prostate Cancer
    • Prostate Cancer Treatment (PDQ®)
    • Prostatic Carcinoma
    • Prostate Gland Cancer
    • Malignant Prostate Tumor

    ICD-10 Codes:

    • C61: Malignant neoplasm of prostate

    Also known as:

    • Hemorrhoids
    • Piles
    • Swollen Veins in Anus
    • Anal Lumps

    ICD-10 Codes:

    • K649: Unspecified hemorrhoids

    Also known as:

    • Pancreatic Cyst
    • Pancreatic Disease
    • Cyst on Pancreas
    • Pancreatic Pseudocyst
    • Fluid Sac on Pancreas

    ICD-10 Codes:

    • K862: Cyst of pancreas

    Also known as:

    • Blocked Esophagus
    • Esophagus Disorder
    • Esophageal Obstruction
    • Food Pipe Blockage
    • Swallowing Difficulty

    ICD-10 Codes:

    • K222: Esophageal obstruction

    Also known as:

    • Familial Adenomatous Polyposis
    • Colonic Polyps
    • Familial adenomatous polyposis
    • FAP
    • Familial polyposis coli
    • Adenomatous polyposis

    ICD-10 Codes:

    • D1391: Familial adenomatous polyposis

    Also known as:

    • GERD with Esophagitis
    • Eosinophilic Esophagitis
    • GERD
    • Reflux Esophagitis
    • Acid Reflux Esophagus Inflammation
    • Heartburn with Esophagus Damage

    ICD-10 Codes:

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

    Also known as:

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

    ICD-10 Codes:

    • K635: Polyp of colon

    Also known as:

    • Diarrhea
    • Loose stools
    • Runny poop
    • Frequent bowel movements

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Diaphragmatic Hernia
    • Hernia
    • Hiatal Hernia
    • Hernia of the Diaphragm

    ICD-10 Codes:

    • K449: Diaphragmatic hernia without obstruction or gangrene

    Also known as:

    • Non-Infectious Gastroenteritis and Colitis
    • Digestive Disease
    • Inflammation of Stomach and Intestines
    • Non-Bacterial Colitis
    • Gut Inflammation

    ICD-10 Codes:

    • K529: Noninfective gastroenteritis and colitis, unspecified

    Also known as:

    • Pancreatic Cancer
    • Pancreas Cancer
    • Malignant Pancreatic Tumor
    • Pancreatic Carcinoma

    ICD-10 Codes:

    • C259: Malignant neoplasm of pancreas, unspecified

    Also known as:

    • Other Esophagus Condition
    • Esophagus Disorder
    • Various esophageal diseases
    • Miscellaneous esophagus problems
    • Other food pipe issues

    ICD-10 Codes:

    • K2289: Other specified disease of esophagus

    Also known as:

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

    ICD-10 Codes:

    • R1310: Dysphagia, unspecified

    What procedures does Dr. Riegert-Johnson perform?

    As a Gastroenterologist, Dr. Riegert-Johnson 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. Riegert-Johnson. 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 Polyp Removal
    • Colonoscopy with Biopsy
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening

    CPT Codes:

    • 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
    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

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

    CPT Codes:

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

    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:

    • Sigmoidoscopy with Polyp Removal
    • Colorectal Cancer Screening Tests
    • Flexible Sigmoidoscopy with Polypectomy
    • Colon Polyp Removal (Lower Colon)
    • Sigmoid Colon Lesion Excision
    • Lower Endoscopy with Polyp Removal

    CPT Codes:

    • 45338: Sigmoidoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    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)

    Does Dr. Riegert-Johnson accept my insurance?

    Dr. Riegert-Johnson accepts most major insurance plans. Important: Please call our office at (904) 953-2000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Riegert-Johnson accept in Jacksonville, FL?

    Dr. Riegert-Johnson in Jacksonville, FL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Bankers Life

    • CVS Health (formerly Aetna)

    • Department of Defense / Tricare

    • Medicare

    • Mutual of Omaha

    • State of Florida

    • State of Tennessee

    • UnitedHealthcare

    • ZF TRW

    View All Insurances

    Where is Dr. Riegert-Johnson's office located?

    Dr. Douglas Riegert-Johnson's Primary Practice

    4500 San Pablo Rd S

    Jacksonville, FL 32224

    (904) 953-2000

    Get Directions

    Dr. Douglas Riegert-Johnson's Practice 2

    4315 Pablo Oaks Ct

    Jacksonville, FL 32224

    Get Directions

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

    Dr. Riegert-Johnson's National Provider Identifier (NPI) number is 1609840768.

    What common questions do patients ask about Dr. Riegert-Johnson?

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

    What is Dr. Douglas Riegert-Johnson's specialty?

    Dr. Riegert-Johnson is a Gastroenterologist near Jacksonville, 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. Riegert-Johnson to book an appointment today.

    Is this Dr. Douglas Riegert-Johnson affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Riegert-Johnson is affiliated with Mayo Building & Hospital - Florida which is a Castle Connolly Top Hospital. 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 Douglas Riegert-Johnson accepting new patients in Jacksonville, FL?

    Yes, Dr. Douglas Riegert-Johnson is accepting new patients at this time.

    Does Dr. Douglas Riegert-Johnson offer online booking?

    Please contact Dr. Riegert-Johnson's office at (904) 953-2000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Douglas Riegert-Johnson?

    Please contact Dr. Riegert-Johnson's office at (904) 953-2000 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Douglas Riegert-Johnson have?

    Dr. Douglas Riegert-Johnson is certified by the American Board of Internal Medicine and American Board of Medical Genetics.

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