Dr. Mike Leonis, MD, PHD
Pediatric Transplant Hepatologist
,Pediatric Gastroenterologist
,Gastroenterologist
,Transplant Hepatologist
Cleveland, OH
23 Years of Experience
Accepting patients
Who is Dr. Leonis, Pediatric Transplant Hepatologist in Cleveland, OH?
Dr. Mike Leonis, MD, PHD is a Pediatric Transplant Hepatologist, who primarily practices in Cleveland, OH with 1 additional practice location. He has been practicing for over 23 years and is board certified by the American Board of Pediatrics. Dr. Leonis graduated from University of Utah Sch of Medicine and completed his residency at Childrens Hosp Med Ctr, Pediatric Gastroenterology; Univ Of Ut Med Ctr, Pediatrics. Dr. Leonis is fluent in English, and is currently seeing new patients. Dr. Leonis’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Leonis’s office at (216) 444-7000.
What are Areas of Expertise for Dr. Leonis?
Dr. Mike Leonis, MD, PHD is a highly-rated, board-certified Pediatric Transplant Hepatologist 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. Leonis empowers patients to confidently navigate their health journey, specializing in Liver Disease, Transplant Medicine-Liver, or comprehensive wellness support. Serving the Cleveland/OH community, Dr. Leonis is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Leonis go to medical school and complete their residency?
Fellowship: Cincinnati Children's
Residency: Childrens Hosp Med Ctr, Pediatric Gastroenterology; Univ Of Ut Med Ctr, Pediatrics | University of Utah Affiliated Hospitals | Children's Hospital/Boston Medical Center Program A
Medical School: Washington University School of Medicine, St. Louis | University of Utah Sch of Medicine | Washington University School of Medicine, St. Louis
Is Dr. Leonis board certified in Pediatric Transplant Hepatologist?
Yes, Dr. Mike Leonis, MD, PHD is board certified by the American Board of Pediatrics , American Board of Pediatrics since 2003
What languages does Dr. Leonis speak?
Dr. Leonis and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Leonis treat?
As a Pediatric Transplant Hepatologist, Dr. Leonis 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. Leonis. 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:
- Constipation
- Chronic Idiopathic Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
- Functional Constipation
- Unexplained Chronic Constipation
- Long-Term Constipation
ICD-10 Codes:
- K5900: Constipation, unspecified
- K5904: Chronic idiopathic constipation
Also known as:
- Belly Button Pain
- Abdominal Pain
- Upper Middle Abdominal Pain
- Pain around navel
- Periumbilical discomfort
- Umbilical pain
- Stomach Ache
- Belly Pain
- Stomach Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1033: Periumbilical pain
- R109: Unspecified abdominal pain
- R1013: Epigastric pain
Also known as:
- Nausea and Vomiting
- Nausea
- Vomiting Without Nausea
- Feeling Sick and Throwing Up
- Stomach Flu Symptoms
- Queasy and Vomiting
- Feeling Sick to Stomach
- Queasiness
- Upset Stomach
- Throwing Up Without Feeling Sick
- Sudden Vomiting
- Emisis without Nausea
ICD-10 Codes:
- R112: Nausea with vomiting, unspecified
- R110: Nausea
- R1111: Vomiting without nausea
Also known as:
- Inflammatory Liver Disease
- Liver Disease
- Hepatitis
- Liver inflammation
- Hepatic illness
- Liver condition
ICD-10 Codes:
- K759: Inflammatory liver disease, unspecified
- K769: Liver disease, unspecified
Also known as:
- Other Abnormal Enzyme Levels
- Unspecified high enzymes
- Various enzyme abnormalities
- Abnormal serum enzyme levels
ICD-10 Codes:
- R748: Abnormal levels of other serum enzymes
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Liver Transplant
- Liver Transplantation
- Hepatic Transplant
- Liver Graft
- New Liver
ICD-10 Codes:
- Z944: Liver transplant status
Also known as:
- Failure to Thrive in Children
- Growth Disorder
- Poor growth in children
- Childhood growth problems
- Infant growth failure
ICD-10 Codes:
- R6251: Failure to thrive (child)
Also known as:
- Dark, Tarry Stools (Melena)
- Gastrointestinal Bleeding
- Melena
- Black Stools
- Upper GI Bleed Signs
ICD-10 Codes:
- K921: Melena
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:
- Unexplained Weight Loss
- Involuntary Weight Loss
- Significant Weight Loss
- Unintentional Weight Loss
ICD-10 Codes:
- R634: Abnormal weight loss
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:
- Celiac Disease
- Gluten-Sensitive Enteropathy
- Sprue
- Coeliac Disease
- Gluten Intolerance
ICD-10 Codes:
- K900: Celiac disease
Which procedures does Dr. Leonis perform as a Pediatric Transplant Hepatologist?
As a Pediatric Transplant Hepatologist, procedures performed by a Dr. Mike Leonis may include:
- Colonic Polypectomy
- Hepatitis C Testing
- Hepatology Consultation
- Hepatology Follow Up
- Liver Biopsy
- Liver Disease Consultation
- Liver Function Test
- Liver Imaging
For detailed information, please contact Dr. Leonis' office.
Does Dr. Leonis accept my insurance?
Dr. Leonis accepts most major insurance plans. Important: Please call our office at (216) 444-7000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Leonis accept in Cleveland, OH?
Dr. Leonis in Cleveland, OH accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
CareSource
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Express Scripts
Humana
Independence Blue Cross
Medical Mutual
State of Ohio
UnitedHealthcare
View All Insurances
Where is Dr. Leonis' office located?
What is Dr. Leonis's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Leonis's National Provider Identifier (NPI) number is 1669402087.
What common questions do patients ask about Dr. Leonis?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Leonis
What is Dr. Mike Leonis's specialty?
Dr. Leonis is a Pediatric Transplant Hepatologist near Cleveland, OH. A pediatrician with expertise in transplant hepatology, possessing the specialized knowledge and skills necessary for pediatric gastroenterologists to care for patients before and after liver transplantation. This expertise encompasses all phases of the transplantation process, ensuring comprehensive management of liver transplant recipients. Contact Dr. Leonis to book an appointment today.
Is this Dr. Mike Leonis affiliated with a ranked Castle Connolly Top Hospital?
No, Leonis is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Cleveland Clinic Children's Hospital. Castle Connolly Top Hospitals 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 Pediatric Transplant Hepatologist?
Explore Pediatric Transplant Hepatologist 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 Mike Leonis accepting new patients in Cleveland, OH?
Yes, Dr. Mike Leonis is accepting new patients at this time.
Does Dr. Mike Leonis offer online booking?
Please contact Dr. Leonis's office at (216) 444-7000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mike Leonis?
Please contact Dr. Leonis's office at (216) 444-7000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mike Leonis have?
Dr. Mike Leonis is certified by the American Board of Pediatrics.
Other Pediatric Transplant Hepatologist Near Cleveland, OH
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KR
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