
36 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Gerdes, Gastroenterologist in New York, NY?
Dr. Hans Gerdes, MD is a Gastroenterologist, who primarily practices in New York, NY. He has been practicing for over 36 years and is board certified. Dr. Gerdes completed his residency at Ny & Presby Hp-Cornell Campus, Internal Medicine. Dr. Gerdes is fluent in English, and is currently seeing new patients. Dr. Gerdes’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Gerdes’s office at (212) 639-7108.
What are Areas of Expertise for Dr. Gerdes?
Dr. Hans Gerdes, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Gerdes empowers patients to confidently navigate their health journey, specializing in Barrett's Esophagus, Endoscopic Therapies, Endoscopic Ultrasound, Endoscopy, Gastrointestinal Cancer, and comprehensive wellness support. Serving the New York, NY community, Dr. Gerdes is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Gerdes go to medical school and complete their residency?
Fellowship: Memorial Sloan - Kettering Cancer Center
Residency: Ny & Presby Hp-Cornell Campus, Internal Medicine | New York Hosp | Cornell Univ. Medical College
Is Dr. Gerdes board certified as a Gastroenterologist?
Yes, Dr. Hans Gerdes, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Gerdes speak?
Dr. Gerdes and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Gerdes typically treat?
As a Gastroenterologist, Dr. Gerdes 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. Gerdes. 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:
- Cancer Follow-up Exam
- Cancer
- Post-cancer treatment checkup
- Malignancy surveillance
- Oncology follow-up
ICD-10 Codes:
- Z08: Encounter for follow-up examination after completed treatment for malignant neoplasm
Also known as:
- Pancreatic Cyst
- Pancreatic Disease
- Cyst on Pancreas
- Pancreatic Pseudocyst
- Fluid Sac on Pancreas
ICD-10 Codes:
- K862: Cyst of pancreas
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 large intestine cancer
- Colorectal Cancer
- Past colon cancer
- Colorectal cancer survivor
- Previous large bowel malignancy
ICD-10 Codes:
- Z85038: Personal history of other malignant neoplasm of large intestine
What procedures does a Gastroenterologist like Dr. Gerdes typically perform?
As a Gastroenterologist, Dr. Gerdes 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. Gerdes. 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
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Flexible Colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
CPT Codes:
- 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)
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
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 Esophageal Balloon Dilation
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
CPT Codes:
- 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)
Also known as:
- Upper Endoscopy with Ultrasound (EUS)
- EGD with endoscopic ultrasound
- Esophageal ultrasound
- Stomach ultrasound endoscopy
- Duodenal ultrasound endoscopy
CPT Codes:
- 43259: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination, including the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis
Also known as:
- Upper GI Endoscopy with Ultrasound Biopsy
- Biopsy
- Endoscopy
- Ultrasound
- EGD with EUS-FNA
- Endoscopic Ultrasound Biopsy
- Esophageal/Stomach Biopsy
CPT Codes:
- 43238: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s), (includes endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures)
Does Dr. Gerdes accept my insurance?
Dr. Gerdes accepts most major insurance plans. Important: Please call our office at (212) 639-7108 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Gerdes accept in New York, NY?
Dr. Gerdes 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
Cigna Group
Corporate Services
CVS Health (formerly Aetna)
Medicare
Service Employees International Union (SEIU)
Unknown
View All Insurances
Where is Dr. Gerdes' office located?
What is Dr. Gerdes's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Gerdes's National Provider Identifier (NPI) number is 1437121217.
What common questions do patients ask about Dr. Gerdes?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Gerdes
What is Dr. Hans Gerdes's specialty?
Dr. Gerdes 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. Hans Gerdes affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Gerdes is affiliated with Memorial Sloan Kettering Cancer Center 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 Hans Gerdes accepting new patients in New York, NY?
Yes, Dr. Hans Gerdes is accepting new patients at this time.
Does Dr. Hans Gerdes offer online booking?
Please contact Dr. Gerdes's office at (212) 639-7108 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Hans Gerdes?
Please contact Dr. Gerdes's office at (212) 639-7108 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Hans Gerdes have?
Dr. Hans Gerdes is certified by the American Board of Internal Medicine.
Other Gastroenterologist Near New York, NY

Gastroenterologist
Dr. David Faleck, MD is a Gastroenterologist, who primarily practices in New York, NY.
New York, NY

Gastroenterologist
Dr. Arnold Markowitz, MD is a Gastroenterologist, who primarily practices in New York, NY. He has been practicing for over 32 years.
New York, NY

Gastroenterologist
Dr. Moshe Shike, MD is a Gastroenterologist, who primarily practices in New York, NY. He is board certified.
New York, NY