AG
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Gemei, Gastroenterologist in New York, NY?
Dr. Ahmed Gemei, MD is a Gastroenterologist, who primarily practices in New York, NY with 2 additional practice locations. Dr. Gemei is fluent in English, and is currently seeing new patients. Dr. Gemei’s practice accepts Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Gemei’s office at (617) 638-6500.
What languages does Dr. Gemei speak?
Dr. Gemei and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Gemei typically treat?
As a Gastroenterologist, Dr. Gemei 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. Gemei. 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:
- Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R109: Unspecified abdominal pain
Also known as:
- Crohn's Disease
- Crohn’s Disease
- Complicated Crohn's Disease
- Inflammatory Bowel Disease (IBD) with Complications
- Panenteric Crohn's with Complications
ICD-10 Codes:
- K50818: Crohn's disease of both small and large intestine with other complication
Also known as:
- Ulcerative Colitis
- Chronic Pancolitis with Complications
- Extensive Ulcerative Colitis with Complications
- Inflammatory Bowel Disease (IBD) with Complications
ICD-10 Codes:
- K51018: Ulcerative (chronic) pancolitis with other complication
What procedures does a Gastroenterologist like Dr. Gemei typically perform?
As a Gastroenterologist, Dr. Gemei 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. Gemei. 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 Biopsy
- Colonoscopy with Polyp Removal
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Tissue Removal
- 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
- Flexible colonoscopy with EMR
- Endoscopic mucosal resection (colon)
- Colon polyp removal during colonoscopy
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)
- 45390: Colonoscopy, flexible; with endoscopic mucosal resection
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:
- Flexible Sigmoidoscopy with Biopsy
- Colorectal Cancer Screening Tests
- Sigmoid Colon Scope with Biopsy
- Lower Endoscopy with Tissue Sample
- Flexible Sigmoidoscopy and Biopsy
- Rectum and Lower Colon Exam
CPT Codes:
- 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
Does Dr. Gemei accept my insurance?
Dr. Gemei accepts most major insurance plans. Important: Please call our office at (617) 638-6500 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Gemei accept in New York, NY?
Dr. Gemei in New York, NY 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 Corporation
Cigna Group
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Healthfirst New York
Medicare
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Gemei's office located?
What is Dr. Gemei's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Gemei's National Provider Identifier (NPI) number is 1912400789.
What common questions do patients ask about Dr. Gemei?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Gemei
What is Dr. Ahmed Gemei's specialty?
Dr. Gemei is a Gastroenterologist near New York, NY.
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. Ahmed Gemei affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Gemei is affiliated with North Shore University Hospital, Long Island Jewish Medical Center, Newyork-Presbyterian/columbia University Irving 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
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 Ahmed Gemei accepting new patients in New York, NY?
Yes, Dr. Ahmed Gemei is accepting new patients at this time.
Does Dr. Ahmed Gemei offer online booking?
Please contact Dr. Gemei's office at (617) 638-6500 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ahmed Gemei?
Please contact Dr. Gemei's office at (617) 638-6500 for information regarding telehealth appointment availability or for scheduling assistance.
Other Gastroenterologist Near New York, NY
KZ
Gastroenterologist
Dr. Kirk Zachary, MD is a Gastroenterologist, who primarily practices in Norwalk, CT with 2 additional practice locations. He has been practicing for over 42 years.
Norwalk, CT

Dr. Tibor Krisko, MD is a Gastroenterologist, who primarily practices in New York, NY.
Gastroenterology and Hepatology - Lower Manhattan
156 William Street
New York, NY 10038

Dr. Victoria Garland, MD is a Gastroenterologist, who primarily practices in New York, NY.

Gastroenterology and Hepatology - Lower Manhattan
156 William Street
New York, NY 10038