Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Zerega, Gastroenterologist in Lake Saint Louis, MO?
Dr. Michael Zerega, MD is a Gastroenterologist, who primarily practices in Lake Saint Louis, MO with 1 additional practice location. He is board certified by the American Board of Internal Medicine. Dr. Zerega completed his residency at Washington U/B-Jh/Slch Conc, Gastroenterology Univ Of Nc Hosps, Internal Medicine. Dr. Zerega is fluent in English, and is currently seeing new patients. Dr. Zerega’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Zerega’s office at (636) 561-9020.
What are Areas of Expertise for Dr. Zerega?
Dr. Michael Zerega, 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. Zerega empowers patients to confidently navigate their health journey, specializing in Colon Cancer Screening, Digestive Disorders, or comprehensive wellness support. Serving the Lake Saint Louis/MO community, Dr. Zerega is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Zerega go to medical school and complete their residency?
Fellowship: Barnes Jewish Hospital
Residency: Washington U/B-Jh/Slch Conc, Gastroenterology Univ Of Nc Hosps, Internal Medicine | University of North Carolina (UNC) Affiliated Hospitals
Medical School: Washington University School of Medicine, St. Louis
Is Dr. Zerega board certified in Gastroenterologist?
Yes, Dr. Michael Zerega, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Zerega speak?
Dr. Zerega and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Zerega treat?
As a Gastroenterologist, Dr. Zerega 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. Zerega. 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 Transverse Colon Polyp
- Benign Ascending Colon Polyp
- Benign Cecum Polyp
- Benign Descending Colon Polyp
- Benign Tumor
- Colonic Polyps
- Colon Polyps
- Non-cancerous transverse colon growth
- Transverse colon adenoma
- Transverse colon benign tumor
- Non-cancerous ascending colon growth
- Ascending colon adenoma
- Ascending colon benign tumor
- Non-cancerous cecum growth
- Cecal adenoma
- Cecum benign tumor
- Non-cancerous descending colon growth
- Descending colon adenoma
- Descending colon benign tumor
ICD-10 Codes:
- D123: Benign neoplasm of transverse colon
- D122: Benign neoplasm of ascending colon
- D120: Benign neoplasm of cecum
- D124: Benign neoplasm of descending colon
Also known as:
- Large Intestine Diverticulosis
- Diverticulosis and Diverticulitis
- Diverticular Disease
- Colon Diverticula
- Pockets in the Colon
ICD-10 Codes:
- K5730: Diverticulosis of large intestine without perforation or abscess without bleeding
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:
- Hemorrhoids
- Hemorrhoidal Skin Tags
- Piles
- Anal veins
- Swollen rectal veins
- Anal skin tags
- Perianal skin tags
- Leftover hemorrhoid skin
ICD-10 Codes:
- K648: Other hemorrhoids
- K644: Residual hemorrhoidal skin tags
Also known as:
- Chronic Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Chronic gastritis
- Long-term stomach inflammation
- Persistent stomach lining inflammation
ICD-10 Codes:
- K2950: Unspecified chronic gastritis without bleeding
Also known as:
- Non-Infectious Gastroenteritis and Colitis
- Colon Polyps
- Digestive Disease
- Colonic Polyps
- Inflammation of Stomach and Intestines
- Non-Bacterial Colitis
- Gut Inflammation
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- K529: Noninfective gastroenteritis and colitis, unspecified
- Z86010: Personal history of colon polyps
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
Also known as:
- Ulcerative Pancolitis
- Ulcerative Colitis
- Chronic Pancolitis
- Extensive Ulcerative Colitis
- Inflammatory Bowel Disease (IBD)
ICD-10 Codes:
- K5100: Ulcerative (chronic) pancolitis without complications
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:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Crohn's Disease of the Small Intestine
- Crohn's Disease
- Crohn’s Disease
- Regional Enteritis
- Inflammatory Bowel Disease (IBD)
- Ileitis
ICD-10 Codes:
- K5000: Crohn's disease of small intestine without complications
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Which procedures does Dr. Zerega perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Michael Zerega may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Zerega's office.
Does Dr. Zerega accept my insurance?
Dr. Zerega accepts most major insurance plans. Important: Please call our office at (636) 561-9020 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Zerega accept in Lake Saint Louis, MO?
Dr. Zerega in Lake Saint Louis, MO accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Aetna
Allied Benefit Systems
Blue Cross Blue Shield
Blue Cross Blue Shield of Illinois
Blue Cross Blue Shield of Michigan
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Express Scripts
Group Administrators Ltd
Medicare
View All Insurances
Where is Dr. Zerega's office located?
Dr. Michael Zerega's Primary Practice
200 Brevco Plz Ste 208
Lake Saint Louis, MO 63367
(636) 561-9020
Dr. Michael Zerega's Practice 2
615 S New Ballas Rd Ste 1200
Saint Louis, MO 63141
(314) 251-2880
What is Dr. Zerega's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Zerega's National Provider Identifier (NPI) number is 1073505178.
What common questions do patients ask about Dr. Zerega?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Zerega
What is Dr. Michael Zerega's specialty?
Dr. Zerega is a Gastroenterologist near Lake Saint Louis, 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. Zerega to book an appointment today.
Is this Dr. Michael Zerega affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Zerega is affiliated with Mercy Hospital St. Louis 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 Michael Zerega accepting new patients in Lake Saint Louis, MO?
Yes, Dr. Michael Zerega is accepting new patients at this time.
Does Dr. Michael Zerega offer online booking?
Please contact Dr. Zerega's office at (636) 561-9020 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Michael Zerega?
Please contact Dr. Zerega's office at (636) 561-9020 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Michael Zerega have?
Dr. Michael Zerega is certified by the American Board of Internal Medicine.
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