38 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Nishioka, Gastroenterologist in Boston, MA?
Dr. Norman Nishioka, MD is a Gastroenterologist, who primarily practices in Boston, MA. He has been practicing for over 38 years and is board certified. Dr. Nishioka graduated from University of California and completed his residency at Mass Gen Hosp, Gastroenterology; Mass Gen Hosp, Internal Medicine. Dr. Nishioka is fluent in English, and is currently seeing new patients. Dr. Nishioka’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nishioka’s office at (617) 726-4422.
Where did Dr. Nishioka go to medical school and complete their residency?
Residency: Mass Gen Hosp, Gastroenterology; Mass Gen Hosp, Internal Medicine | Massachusetts General Hospital Program
Medical School: University of Ca, Los Angeles, Ucla Sch of Med, Los Angeles Ca | University of California
Is Dr. Nishioka board certified as a Gastroenterologist?
Yes, Dr. Norman Nishioka, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Nishioka speak?
Dr. Nishioka and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Nishioka typically treat?
As a Gastroenterologist, Dr. Nishioka 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. Nishioka. 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 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:
- Barrett's Esophagus
- Other Esophagus Condition
- Esophagus Disorder
- Barrett’s Esophagus
- Barrett's condition
- Esophageal metaplasia
- Various esophageal diseases
- Miscellaneous esophagus problems
- Other food pipe issues
ICD-10 Codes:
- K2270: Barrett's esophagus without dysplasia
- K2289: Other specified disease of esophagus
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
What procedures does a Gastroenterologist like Dr. Nishioka typically perform?
As a Gastroenterologist, Dr. Nishioka 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. Nishioka. 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 Polyp Removal
- Colonoscopy with Biopsy
- Diagnostic Colonoscopy with Biopsy
- 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
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)
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:
- Upper Endoscopy with Tumor Ablation
- EGD with Ablation
- Esophagus, Stomach, Duodenum Scope with Ablation
- Flexible Endoscopy Lesion Treatment
CPT Codes:
- 43270: Esophagogastroduodenoscopy, flexible, transoral; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)
Does Dr. Nishioka accept my insurance?
Dr. Nishioka accepts most major insurance plans. Important: Please call our office at (617) 726-4422 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Nishioka accept in Boston, MA?
Dr. Nishioka in Boston, MA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Blue Cross Blue Shield of Massachusetts
Blue Cross Blue Shield of Michigan
Cigna Group
Medicare
View All Insurances
Where is Dr. Nishioka's office located?
What is Dr. Nishioka's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Nishioka's National Provider Identifier (NPI) number is 1174513600.
What common questions do patients ask about Dr. Nishioka?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Nishioka
What is Dr. Norman Nishioka's specialty?
Dr. Nishioka is a Gastroenterologist near Boston, MA.
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. Norman Nishioka affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Nishioka is affiliated with Massachusetts General Hospital 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 Norman Nishioka accepting new patients in Boston, MA?
Yes, Dr. Norman Nishioka is accepting new patients at this time.
Does Dr. Norman Nishioka offer online booking?
Please contact Dr. Nishioka's office at (617) 726-4422 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Norman Nishioka?
Please contact Dr. Nishioka's office at (617) 726-4422 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Norman Nishioka have?
Dr. Norman Nishioka is certified by the American Board of Internal Medicine.
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