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Dr. Mark Kogan, MD

Oakland, CA

39 Years of Experience

Accepting patients

    Who is Dr. Kogan, Gastroenterologist in Oakland, CA?

    Dr. Mark Kogan, MD is a Gastroenterologist, who primarily practices in Oakland, CA with 2 additional practice locations. He has been practicing for over 39 years and is board certified. Dr. Kogan completed his residency at Univ Of Co Sch Of Med, Gastroenterology; North Shore Univ Hosp, Internal Medicine. Dr. Kogan is fluent in English, Spanish, and Tagalog, and is currently seeing new patients. Dr. Kogan’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare, Aetna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Kogan’s office at (510) 234-5012.

    What are Areas of Expertise for Dr. Kogan?

    Dr. Mark Kogan, 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. Kogan empowers patients to confidently navigate their health journey, specializing in Colon Cancer Screening, Endoscopy, Inflammatory Bowel Disease, or comprehensive wellness support. Serving the Oakland/CA community, Dr. Kogan is dedicated to enhancing lives through expert, patient-centered care.

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

    • Residency: Univ Of Co Sch Of Med, Gastroenterology; North Shore Univ Hosp, Internal Medicine

    • Medical School: Northwestern Uniiversity

    Is Dr. Kogan board certified as a Gastroenterologist?

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

    What languages does Dr. Kogan speak?

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

    • English

    • Spanish

    • Tagalog

    What conditions does Dr. Kogan treat?

    As a Gastroenterologist, Dr. Kogan 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. Kogan. 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 and Duodenum Disorder
    • Stomach Disorder
    • Gastric Conditions
    • Duodenal Conditions
    • Digestive System Disorders

    ICD-10 Codes:

    • K3189: Other diseases of stomach and duodenum

    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:

    • Dark, Tarry Stools (Melena)
    • Gastrointestinal Bleeding
    • Melena
    • Black Stools
    • Upper GI Bleed Signs

    ICD-10 Codes:

    • K921: Melena

    Also known as:

    • Abnormal Bowel Movements
    • Bowel Movement
    • Unusual stool
    • Changes in poop
    • Fecal changes

    ICD-10 Codes:

    • R195: Other fecal abnormalities

    Also known as:

    • Iron Deficiency Anemia
    • Anemia
    • Iron
    • Anemia from Iron Lack
    • Low Iron Anemia
    • Sideropenic Anemia

    ICD-10 Codes:

    • D509: Iron deficiency anemia, unspecified

    Also known as:

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

    ICD-10 Codes:

    • Z86010: Personal history of colon polyps

    What procedures does Dr. Kogan perform?

    As a Gastroenterologist, Dr. Kogan 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. Kogan. 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 Biopsy
    • Colonoscopy with Polyp Removal
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening

    CPT Codes:

    • 45380: Colonoscopy, flexible; with biopsy, single or multiple
    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    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
    • Colonoscopy with Injections
    • EGD with Esophageal Balloon Dilation
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening

    CPT Codes:

    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)

    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. Kogan accept my insurance?

    Dr. Kogan accepts most major insurance plans. Important: Please call our office at (510) 234-5012 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Kogan accept in Oakland, CA?

    Dr. Kogan in Oakland, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Centene

    • Contra Costa

    • Crown Cork and Seal Company

    • Hill Physicians Medical Group

    • MAPFRE

    • Medicare

    • State of Tennessee

    • Sutter Health

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Kogan's office located?

    Dr. Mark Kogan's Primary Practice

    350 Hawthorne Ave Rm 2346

    Oakland, CA 94609

    (510) 234-5012

    Get Directions

    Dr. Mark Kogan's Practice 2

    1041 N China Lake Blvd

    Ridgecrest, CA 93555

    Get Directions

    Dr. Mark Kogan's Practice 3

    2089 Vale Rd Ste 33

    San Pablo, CA 94806

    Get Directions

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

    Dr. Kogan's National Provider Identifier (NPI) number is 1780690313.

    What common questions do patients ask about Dr. Kogan?

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

    What is Dr. Mark Kogan's specialty?

    Dr. Kogan is a Gastroenterologist near Oakland, CA. 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. Kogan to book an appointment today.

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

    No, Kogan is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Alta Bates Summit Medical Center - Alta Bates Campus. 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 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 Mark Kogan accepting new patients in Oakland, CA?

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

    Does Dr. Mark Kogan offer online booking?

    Please contact Dr. Kogan's office at (510) 234-5012 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Mark Kogan?

    Please contact Dr. Kogan's office at (510) 234-5012 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Mark Kogan have?

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

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