JR
42 Years of Experience
Accepting patients
Who is Dr. Roark, Gastroenterologist in Oakland, CA?
Dr. John Roark, MD is a Gastroenterologist, who primarily practices in Oakland, CA with 1 additional practice location. He has been practicing for over 42 years and is board certified. Dr. Roark completed his residency at Ucla Med Ctr, Gastroenterology Vet Affairs Med Ctr-W La, Internal Medicine. Dr. Roark is fluent in English and Spanish, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Roark’s office at (510) 437-4800.
Where did Dr. Roark go to medical school and complete their residency?
Residency: Ucla Med Ctr, Gastroenterology Vet Affairs Med Ctr-W La, Internal Medicine
Medical School: University of Ca, Los Angeles, Ucla Sch of Med, Los Angeles Ca
Is Dr. Roark board certified as a Gastroenterologist?
Yes, Dr. John Roark, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Roark speak?
Dr. Roark and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Roark treat?
As a Gastroenterologist, Dr. Roark 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. Roark. 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:
- Hemorrhoidal Skin Tags
- Hemorrhoids
- Anal skin tags
- Perianal skin tags
- Leftover hemorrhoid skin
- Piles
- Anal veins
- Swollen rectal veins
ICD-10 Codes:
- K644: Residual hemorrhoidal skin tags
- K648: Other hemorrhoids
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:
- Ulcerative Pancolitis
- Ulcerative Colitis
- Chronic Pancolitis
- Extensive Ulcerative Colitis
- Inflammatory Bowel Disease (IBD)
ICD-10 Codes:
- K5100: Ulcerative (chronic) pancolitis without complications
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:
- Diaphragmatic Hernia
- Hernia
- Hiatal Hernia
- Hernia of the Diaphragm
ICD-10 Codes:
- K449: Diaphragmatic hernia without obstruction or gangrene
What procedures does Dr. Roark perform?
As a Gastroenterologist, Dr. Roark 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. Roark. 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
- 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
Also known as:
- Diagnostic Upper Endoscopy with Biopsy
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
CPT Codes:
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Does Dr. Roark accept my insurance?
Please contact Dr. Roark's office to confirm accepted insurance plans.
Where is Dr. Roark's office located?
What is Dr. Roark's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Roark's National Provider Identifier (NPI) number is 1609834266.
What common questions do patients ask about Dr. Roark?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Roark
What is Dr. John Roark's specialty?
Dr. Roark 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. Roark to book an appointment today.
Is this Dr. John Roark affiliated with a ranked Castle Connolly Top Hospital?
No, Roark is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Wilma Chan Highland Hospital 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 John Roark accepting new patients in Oakland, CA?
Yes, Dr. John Roark is accepting new patients at this time.
Does Dr. John Roark offer online booking?
Please contact Dr. Roark's office at (510) 437-4800 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Roark?
Please contact Dr. Roark's office at (510) 437-4800 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. John Roark have?
Dr. John Roark is certified by the American Board of Internal Medicine.
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