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Dr. Mark Diamond, MD

Gastroenterologist

Baltimore, MD

45 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Diamond, Gastroenterologist in Baltimore, MD?

    Dr. Mark Diamond, MD is a Gastroenterologist, who primarily practices in Baltimore, MD with 1 additional practice location. He has been practicing for over 45 years and is board certified. Dr. Diamond graduated from Ohio State University / College of Medicine and completed his residency at Johns Hopkins Hosp, Gastroenterology; Univ Hosp Of Cleveland, Internal Medicine. Dr. Diamond is fluent in English and French, and is currently seeing new patients. Dr. Diamond’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Diamond’s office at (410) 574-5877.

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

    • Residency: Johns Hopkins Hosp, Gastroenterology; Univ Hosp Of Cleveland, Internal Medicine | Johns Hopkins Bloomberg School of Public Health Program A

    • Medical School: Oh State Univ Coll of Med, Columbus Oh | Ohio State University / College of Medicine

    Is Dr. Diamond board certified as a Gastroenterologist?

    Yes, Dr. Mark Diamond, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Diamond speak?

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

    • English
    • French

    What conditions does a Gastroenterologist like Dr. Diamond typically treat?

    As a Gastroenterologist, Dr. Diamond 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. Diamond. 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. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Colon Polyps
    • History of Other Digestive System Disease
    • Colonic Polyps
    • Digestive Disease
    • Colorectal Polyps
    • Intestinal Polyps
    • Bowel Polyps
    • Past GI Disorder
    • Previous Digestive Problem
    • History of Gastrointestinal Illness

    ICD-10 Codes:

    • Z86010: Personal history of colon polyps
    • Z8719: Personal history of other diseases of the digestive system

    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:

    • Other Pre-Procedure Examination
    • Various pre-op checks
    • Miscellaneous pre-surgery exams
    • Other pre-treatment assessments

    ICD-10 Codes:

    • Z01818: Encounter for other preprocedural examination

    What procedures does a Gastroenterologist like Dr. Diamond typically perform?

    As a Gastroenterologist, Dr. Diamond 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. Diamond. 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. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Colonoscopy with Biopsy
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy with Polyp Removal
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision

    CPT Codes:

    • 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)
    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    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

    Does Dr. Diamond accept my insurance?

    Dr. Diamond accepts most major insurance plans. Important: Please call our office at (410) 574-5877 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Diamond accept in Baltimore, MD?

    Dr. Diamond in Baltimore, MD accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • CareFirst BlueCross BlueShield

    • Cigna Group

    • Medicare

    • State of Maryland

    View All Insurances

    Where is Dr. Diamond's office located?

    Dr. Mark Diamond's Primary Practice

    5233 King Ave Ste 308

    Baltimore, MD 21237

    (410) 574-5877

    Get Directions

    Dr. Mark Diamond's Practice 2

    9105 Franklin Square Dr Ste 308

    Baltimore, MD 21237

    Get Directions

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

    Dr. Diamond's National Provider Identifier (NPI) number is 1912081019.

    What common questions do patients ask about Dr. Diamond?

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

    What is Dr. Mark Diamond's specialty?

    Dr. Diamond is a Gastroenterologist near Baltimore, MD.

    What does a Gastroenterologist do?

    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.

    Is Dr. Mark Diamond affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Diamond is affiliated with Medstar Franklin Square Medical Center 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

    When to see a Gastroenterologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see a Gastroenterologist. Explore 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 Dr. Mark Diamond accepting new patients in Baltimore, MD?

    Yes, Dr. Mark Diamond is accepting new patients at this time.

    Does Dr. Mark Diamond offer online booking?

    Please contact Dr. Diamond's office at (410) 574-5877 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Mark Diamond?

    Please contact Dr. Diamond's office at (410) 574-5877 to schedule an appointment.

    Where is Dr. Diamond's office located?

    Dr. Diamond's office is located in Baltimore, MD.

    Which board certifications does Dr. Mark Diamond have?

    Dr. Mark Diamond is certified by the American Board of Internal Medicine.