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Dr. Leonard Quallich, MD

Troy, MI

46 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Quallich, Gastroenterologist in Troy, MI?

    Dr. Leonard Quallich, MD is a Gastroenterologist, who primarily practices in Troy, MI with 1 additional practice location. He has been practicing for over 46 years and is board certified. Dr. Quallich graduated from Case Western Reserve University School of Medicine and completed his residency at Univ Of Mi Hosps & Hlth Ctrs, Gastroenterology; Univ Of Mi Hosps & Hlth Ctrs, Internal Medicine. Dr. Quallich is fluent in English, French, and Polish, and is currently seeing new patients. Dr. Quallich’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Quallich’s office.

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

    • Residency: Univ Of Mi Hosps & Hlth Ctrs, Gastroenterology; Univ Of Mi Hosps & Hlth Ctrs, Internal Medicine | University of Michigan Program

    • Medical School: Case Western Reserve University School of Medicine

    Is Dr. Quallich board certified as a Gastroenterologist?

    Yes, Dr. Leonard Quallich, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Quallich speak?

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

    • English

    • French

    • Polish

    What conditions does Dr. Quallich treat?

    As a Gastroenterologist, Dr. Quallich 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. Quallich. 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
    • 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:

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

    ICD-10 Codes:

    • K635: Polyp of colon

    Also known as:

    • Barrett's Esophagus
    • Esophagus Disorder
    • Barrett’s Esophagus
    • Barrett's condition
    • Esophageal metaplasia

    ICD-10 Codes:

    • K2270: Barrett's esophagus without dysplasia

    Also known as:

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

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Upper Middle Abdominal Pain
    • Abdominal Pain
    • Epigastric pain
    • Pain below breastbone
    • Upper stomach pain

    ICD-10 Codes:

    • R1013: Epigastric pain

    Also known as:

    • Stomach Ulcer
    • Peptic Ulcer
    • Gastric ulcer
    • Peptic ulcer of the stomach
    • Stomach sore

    ICD-10 Codes:

    • K259: Gastric ulcer, unspecified as acute or chronic, without hemorrhage or perforation

    What procedures does Dr. Quallich perform?

    As a Gastroenterologist, Dr. Quallich 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. Quallich. 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 with Hemorrhoid Ligation
    • Colonoscopy with Polyp/Tumor Removal
    • 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
    • Hemorrhoid Banding
    • Colon Exam with Ligation
    • Flexible colonoscopy with ablation
    • Colon polyp removal
    • Colon tumor destruction
    • Therapeutic colonoscopy

    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)
    • 45398: Colonoscopy, flexible; with band ligation(s) (eg, hemorrhoids)
    • 45388: Colonoscopy, flexible; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)

    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
    • EGD with Endoscopic Ultrasound
    • EGD with Esophageal Balloon Dilation
    • Sigmoidoscopy with Hemorrhoid Banding
    • Upper Endoscopy with Injections
    • Esophagus Widening Procedure (Endoscopic)
    • Flexible Sigmoidoscopy with Biopsy
    • Colorectal Cancer Screening Tests
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Upper GI Endoscopy with Ultrasound
    • EUS (Endoscopic Ultrasound)
    • Esophagus, Stomach, Duodenum Ultrasound
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • Flexible Sigmoidoscopy with Ligation
    • Hemorrhoid Banding (Sigmoidoscopy)
    • Lower Endoscopy for Hemorrhoids
    • EGD with Submucosal Injections
    • Esophagogastroduodenoscopy with Injections
    • Stomach Scope with Medication
    • Esophageal Dilation
    • EGD with Dilation
    • Upper Endoscopy with 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)
    • 43237: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures
    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 45350: Sigmoidoscopy, flexible; with band ligation(s) (eg, hemorrhoids)
    • 43236: Esophagogastroduodenoscopy, flexible, transoral; with directed submucosal injection(s), any substance
    • 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple

    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:

    • Upper Endoscopy with Ultrasound (EUS)
    • Upper Endoscopy with Tumor Ablation
    • Upper Endoscopy with Polyp Removal
    • EGD with endoscopic ultrasound
    • Esophageal ultrasound
    • Stomach ultrasound endoscopy
    • Duodenal ultrasound endoscopy
    • EGD with Ablation
    • Esophagus, Stomach, Duodenum Scope with Ablation
    • Flexible Endoscopy Lesion Treatment
    • EGD with Polypectomy
    • Esophagus, Stomach, Duodenum Scope with Removal
    • Flexible Endoscopy Tumor Excision

    CPT Codes:

    • 43259: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination, including the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis
    • 43270: Esophagogastroduodenoscopy, flexible, transoral; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)
    • 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    Also known as:

    • Upper GI Endoscopy with Ultrasound Biopsy
    • Biopsy
    • Endoscopy
    • Ultrasound
    • EGD with EUS-FNA
    • Endoscopic Ultrasound Biopsy
    • Esophageal/Stomach Biopsy

    CPT Codes:

    • 43238: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s), (includes endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures)

    Also known as:

    • Upper Endoscopy with Ultrasound and Biopsy
    • Biopsy
    • Endoscopy
    • Ultrasound
    • EGD with Endoscopic Ultrasound Biopsy
    • Transoral EUS-FNA
    • Esophagogastroduodenoscopy with Biopsy

    CPT Codes:

    • 43242: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s) (includes endoscopic ultrasound examination of the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis)

    Also known as:

    • Wireless Esophageal pH Test
    • Esophageal pH Test
    • Bravo pH Test
    • Esophageal Reflux Monitoring
    • Acid Reflux Test

    CPT Codes:

    • 91035: Esophagus, gastroesophageal reflux test; with mucosal attached telemetry pH electrode placement, recording, analysis and interpretation

    Does Dr. Quallich accept my insurance?

    Dr. Quallich accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Quallich accept in Troy, MI?

    Dr. Quallich in Troy, MI accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Blue Cross Blue Shield of Michigan

    • Carpenters Funds Administrative Office (CA)

    • Citizens Rx

    • Crown Cork and Seal Company

    • CVS Health (formerly Aetna)

    • Health Alliance Plan (HAP)

    • Medicare

    • Spectrum / Priority Health

    • UnitedHealthcare

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    Where is Dr. Quallich's office located?

    Dr. Leonard Quallich's Primary Practice

    4600 Investment Dr Ste 380

    Troy, MI 48098

    Get Directions

    Dr. Leonard Quallich's Practice 2

    1701 South Blvd E Ste 300

    Rochester Hills, MI 48307

    (248) 844-9710

    Get Directions

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

    Dr. Quallich's National Provider Identifier (NPI) number is 1093797326.

    What common questions do patients ask about Dr. Quallich?

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

    What is Dr. Leonard Quallich's specialty?

    Dr. Quallich is a Gastroenterologist near Troy, MI. 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. Quallich to book an appointment today.

    Is this Dr. Leonard Quallich affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Quallich is affiliated with Corewell Health William Beaumont University Hospital, Corewell Health Beaumont Grosse Pointe Hospital, Corewell Health Farmington Hills Hospital, Corewell Health Dearborn Hospital, Bronson Methodist Hospital, Corewell Health Butterworth Hospital 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 Leonard Quallich accepting new patients in Troy, MI?

    Yes, Dr. Leonard Quallich is accepting new patients at this time.

    Does Dr. Leonard Quallich offer online booking?

    Please contact Dr. Quallich's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Leonard Quallich?

    Please contact Dr. Quallich's office for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Leonard Quallich have?

    Dr. Leonard Quallich is certified by the American Board of Internal Medicine.

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