EverydayHealthLogo
Dr. Calvin Olson, MD

Dr. Calvin Olson, MD

Modesto, CA

42 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Olson, Gastroenterologist in Modesto, CA?

    Dr. Calvin Olson, MD is a Gastroenterologist, who primarily practices in Modesto, CA. He has been practicing for over 42 years and is board certified. Dr. Olson graduated from University of California and completed his residency at Ucla Med Ctr, Gastroenterology; Univ Hosp-S Tx Med Ctr, Internal Medicine. Dr. Olson is fluent in English, and is currently seeing new patients. Dr. Olson’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Olson’s office at (209) 550-4750.

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

    • Residency: Ucla Med Ctr, Gastroenterology; Univ Hosp-S Tx Med Ctr, Internal Medicine | University of Texas Affiliated Hospitals | University of Arkansas for Medical Sciences Regional Centers (South Central) Program

    • Medical School: University of Ca, San Francisco, Sch of Med, San Francisco Ca | University of California

    Is Dr. Olson board certified as a Gastroenterologist?

    Yes, Dr. Calvin Olson, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Olson speak?

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

    • English

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

    As a Gastroenterologist, Dr. Olson 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. Olson. 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 here.

    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:

    • Fatty Liver Disease
    • Liver Disease
    • Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
    • Nonalcoholic Fatty Liver Disease & NASH in Children
    • NAFLD
    • NASH
    • Hepatic steatosis

    ICD-10 Codes:

    • K760: Fatty (change of) liver, not elsewhere classified

    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
    • Intestinal Polyps
    • Bowel Polyps

    ICD-10 Codes:

    • Z86010: Personal history of colon polyps

    Also known as:

    • History of Adenomatous and Serrated Colon Polyps
    • Past Colon Polyps
    • Previous Adenomas
    • History of Precancerous Colon Growths

    ICD-10 Codes:

    • Z860101: Personal history of adenomatous and serrated colon polyps

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

    As a Gastroenterologist, Dr. Olson 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. Olson. 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 here.

    Also known as:

    • Liver Elastography
    • Elastography
    • FibroScan
    • Liver stiffness test
    • Shear wave elastography

    CPT Codes:

    • 91200: Liver elastography, mechanically induced shear wave (eg, vibration), without imaging, with interpretation and report

    Does Dr. Olson accept my insurance?

    Dr. Olson accepts most major insurance plans. Important: Please call our office at (209) 550-4750 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Olson accept in Modesto, CA?

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

    Top Insurances

    • Alignment Healthcare

    • All Other PACE

    • BCBS Unspecified

    • Centene Corporation

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Health Plan of San Joaquin

    • UnitedHealth Group

    • Western Growers Association

    View All Insurances

    Where is Dr. Olson's office located?

    Dr. Calvin Olson's Primary Practice

    1409 E Briggsmore Ave

    Modesto, CA 95355

    (209) 550-4750

    Get Directions

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

    Dr. Olson's National Provider Identifier (NPI) number is 1740230713.

    What common questions do patients ask about Dr. Olson?

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

    What is Dr. Calvin Olson's specialty?

    Dr. Olson is a Gastroenterologist near Modesto, CA.

    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 this Dr. Calvin Olson affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Olson is affiliated with Memorial Medical Center - Modesto, Ca 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 Calvin Olson accepting new patients in Modesto, CA?

    Yes, Dr. Calvin Olson is accepting new patients at this time.

    Does Dr. Calvin Olson offer online booking?

    Please contact Dr. Olson's office at (209) 550-4750 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Calvin Olson?

    Please contact Dr. Olson's office at (209) 550-4750 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Calvin Olson have?

    Dr. Calvin Olson is certified by the American Board of Internal Medicine.

    Other Gastroenterologist Near Modesto, CA

    RK

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Roseville, CA
    NM

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Modesto, CA
    MS

    Gastroenterologist

    acceptingPatients-iconAccepting patients
    Modesto, CA
    See All Specialists

    Doctors by Category

    Specialists