GK
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Koenig, Gastroenterologist in Hazelwood, MO?
Dr. Gary Koenig, MD is a Gastroenterologist, who primarily practices in Hazelwood, MO with 1 additional practice location. He is board certified by the American Board of Internal Medicine. Dr. Koenig completed his residency at St Mary'S Hlth Ctr, Gastroenterology; St Mary'S Hlth Ctr, Internal Medicine; St Louis Univ Hosp, Internal Medicine. Dr. Koenig is fluent in English, and is currently seeing new patients. Dr. Koenig’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Koenig’s office at (314) 355-4010.
Where did Dr. Koenig go to medical school and complete their residency?
Residency: St Mary'S Hlth Ctr, Gastroenterology; St Mary'S Hlth Ctr, Internal Medicine; St Louis Univ Hosp, Internal Medicine | St Louis University Hosps
Medical School: St Louis Univ Sch of Med, St Louis Mo
Is Dr. Koenig board certified in Gastroenterologist?
Yes, Dr. Gary Koenig, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Koenig speak?
Dr. Koenig and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Koenig treat?
As a Gastroenterologist, Dr. Koenig 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. Koenig. 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:
- Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, 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:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Iron Deficiency Anemia from Chronic Blood Loss
- Anemia
- Iron
- Anemia due to iron deficiency and blood loss
- Chronic blood loss anemia
- Low iron anemia from bleeding
ICD-10 Codes:
- D500: Iron deficiency anemia secondary to blood loss (chronic)
What procedures does Dr. Koenig perform?
As a Gastroenterologist, Dr. Koenig 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. Koenig. 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:
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- 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
- 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
- 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:
- Esophagus Widening Procedure (Endoscopic)
- Colonoscopy with Injections
- Diagnostic Upper Endoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
CPT Codes:
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
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:
- 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. Koenig accept my insurance?
Dr. Koenig accepts most major insurance plans. Important: Please call our office at (314) 355-4010 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Koenig accept in Hazelwood, MO?
Dr. Koenig in Hazelwood, MO accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Centene
CVS Health (formerly Aetna)
Department of Defense / Tricare
Elevance Health Inc. (formerly Anthem)
Essence Healthcare
Express Scripts
Medicare
MedImpact
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Koenig's office located?
What is Dr. Koenig's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Koenig's National Provider Identifier (NPI) number is 1861485724.
What common questions do patients ask about Dr. Koenig?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Koenig
What is Dr. Gary Koenig's specialty?
Dr. Koenig is a Gastroenterologist near Hazelwood, MO. 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. Koenig to book an appointment today.
Is this Dr. Gary Koenig affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Koenig is affiliated with Missouri Baptist Medical Center, Christian Hospital, Barnes-Jewish West County Hospital, SSM Health St. Joseph Hospital - St. Charles, Mercy Hospital St. Louis, SSM Health St. Clare Hospital - Fenton 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 Gary Koenig accepting new patients in Hazelwood, MO?
Yes, Dr. Gary Koenig is accepting new patients at this time.
Does Dr. Gary Koenig offer online booking?
Please contact Dr. Koenig's office at (314) 355-4010 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Gary Koenig?
Please contact Dr. Koenig's office at (314) 355-4010 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Gary Koenig have?
Dr. Gary Koenig is certified by the American Board of Internal Medicine.
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