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Dr. Peter Simpson, MD

Dr. Peter Simpson, MD

Mountain View, CA

21 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Simpson, Gastroenterologist in Mountain View, CA?

    Dr. Peter Simpson, MD is a Gastroenterologist, who primarily practices in Mountain View, CA with 2 additional practice locations. He has been practicing for over 21 years and is board certified. Dr. Simpson graduated from University of California and completed his residency at St Mary'S Hosp Med Ctr, Internal Medicine Santa Clara Valley Med Ctr, Internal Medicine. Dr. Simpson is fluent in English, and is currently seeing new patients. Dr. Simpson’s practice accepts Cigna, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Simpson’s office at (650) 934-7575.

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

    • Fellowship: Cedar Sinai Medical Center, Los Angeles, CA

    • Residency: St Mary'S Hosp Med Ctr, Internal Medicine Santa Clara Valley Med Ctr, Internal Medicine | Santa Clara Valley Medical Center | St Mary's Hospital and Medical Center Program

    • Medical School: University Of Ca- Davis- Sch Of Med- Davis Ca | University of California

    What languages does Dr. Simpson speak?

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

    • English

    What conditions does Dr. Simpson treat?

    As a Gastroenterologist, Dr. Simpson 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. Simpson. 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:

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

    ICD-10 Codes:

    • K635: Polyp 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:

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

    ICD-10 Codes:

    • R197: Diarrhea, unspecified

    Also known as:

    • Rectal Bleeding
    • Gastrointestinal Bleeding
    • Gastrointestinal (GI) Bleeding
    • Anal Bleeding
    • Blood in Stool
    • Lower GI Bleed

    ICD-10 Codes:

    • K625: Hemorrhage of anus and rectum

    Also known as:

    • Crohn's Disease of the Small Intestine
    • Crohn's Disease
    • Crohn’s Disease
    • Regional Enteritis
    • Inflammatory Bowel Disease (IBD)
    • Ileitis

    ICD-10 Codes:

    • K5000: Crohn's disease of small intestine without complications

    Also known as:

    • Ulcerative Pancolitis
    • Ulcerative Colitis
    • Chronic Pancolitis
    • Extensive Ulcerative Colitis
    • Inflammatory Bowel Disease (IBD)

    ICD-10 Codes:

    • K5100: Ulcerative (chronic) pancolitis without complications

    What procedures does Dr. Simpson perform?

    As a Gastroenterologist, Dr. Simpson 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. Simpson. 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 Tissue Removal
    • Colonoscopy with Hemorrhoid Ligation
    • 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
    • Flexible colonoscopy with EMR
    • Endoscopic mucosal resection (colon)
    • Colon polyp removal during colonoscopy
    • Hemorrhoid Banding
    • Colon Exam with Ligation

    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)
    • 45390: Colonoscopy, flexible; with endoscopic mucosal resection
    • 45398: Colonoscopy, flexible; with band ligation(s) (eg, hemorrhoids)

    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:

    • Colonoscopy with Injections
    • Diagnostic Upper Endoscopy with Biopsy
    • EGD with Esophageal Balloon Dilation
    • Flexible Sigmoidoscopy with Biopsy
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • Sigmoid Colon Scope with Biopsy
    • Lower Endoscopy with Tissue Sample
    • Flexible Sigmoidoscopy and Biopsy
    • Rectum and Lower Colon Exam

    CPT Codes:

    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple

    Also known as:

    • Upper Endoscopy with Polyp Removal
    • EGD with Polypectomy
    • Esophagus, Stomach, Duodenum Scope with Removal
    • Flexible Endoscopy Tumor Excision

    CPT Codes:

    • 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    Also known as:

    • Flexible Sigmoidoscopy
    • Colorectal Cancer Screening Tests
    • Sigmoidoscopy
    • Lower colon exam
    • Flexible colon scope
    • Rectum and lower colon check

    CPT Codes:

    • 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Capsule Endoscopy
    • Pill Camera
    • Wireless Capsule Endoscopy
    • Small Bowel Capsule Endoscopy
    • Intestinal Imaging Pill

    CPT Codes:

    • 91110: Gastrointestinal tract imaging, intraluminal (eg, capsule endoscopy), esophagus through ileum, with interpretation and report

    Does Dr. Simpson accept my insurance?

    Dr. Simpson accepts most major insurance plans. Important: Please call our office at (650) 934-7575 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Simpson accept in Mountain View, CA?

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

    Top Insurances

    • Alignment Health Plan

    • Blue Shield of California

    • Centene

    • Cigna

    • Corporate Services

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Presbyterian Health Plan

    • Santa Clara Family Health Plan

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Simpson's office located?

    Dr. Peter Simpson's Primary Practice

    701 E El Camino Real

    Mountain View, CA 94040

    (650) 934-7575

    Get Directions

    Dr. Peter Simpson's Practice 2

    2751 Research Park Dr

    Soquel, CA 95073

    Get Directions

    Dr. Peter Simpson's Practice 3

    550 S Green Valley Rd

    Watsonville, CA 95076

    Get Directions

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

    Dr. Simpson's National Provider Identifier (NPI) number is 1043499478.

    What common questions do patients ask about Dr. Simpson?

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

    What is Dr. Peter Simpson's specialty?

    Dr. Simpson is a Gastroenterologist near Mountain View, 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. Simpson to book an appointment today.

    Is this Dr. Peter Simpson affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Simpson is affiliated with California Pacific Medical Center - Van Ness Campus, Mills-Peninsula Medical Center, Stanford Health Care - Stanford Hospital, Sutter Roseville Medical Center 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 Peter Simpson accepting new patients in Mountain View, CA?

    Yes, Dr. Peter Simpson is accepting new patients at this time.

    Does Dr. Peter Simpson offer online booking?

    Please contact Dr. Simpson's office at (650) 934-7575 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Peter Simpson?

    Please contact Dr. Simpson's office at (650) 934-7575 for information regarding telehealth appointment availability or for scheduling assistance.

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