
Accepting patients
Online booking
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Hartman, Gastroenterologist in Mount Vernon, NY?
Joshua L. Hartman, MD, is a gastroenterologist at NewYork-Presbyterian Medical Group Westchester and an assistant professor of medicine at Columbia University Medical Center. He performs surgeries at NewYork-Presbyterian Lawrence Hospital. Dr. Hartman see patients for general gastroenterology conditions as well as liver disease. He earned his medical degree from New York Medical College. He served his internship and residency at Icahn School of Medicine at Mount Sinai Hospital and his gastroenterology fellowship at Northwell Health. He is a frequent lecturer and has published research in various medical journals. Dr. Hartman is a member of the American College of Gastroenterology and the New York Society for Gastrointestinal Endoscopy.
What languages does Dr. Hartman speak?
Dr. Hartman and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Hartman typically treat?
As a Gastroenterologist, Dr. Hartman 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. Hartman. 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:
- Upper Middle Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1013: Epigastric pain
Also known as:
- GERD with Esophagitis
- Eosinophilic Esophagitis
- GERD
- Reflux Esophagitis
- Acid Reflux Esophagus Inflammation
- Heartburn with Esophagus Damage
ICD-10 Codes:
- K2100: Gastro-esophageal reflux disease with esophagitis, without bleeding
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5909: Other constipation
What procedures does a Gastroenterologist like Dr. Hartman typically perform?
As a Gastroenterologist, Dr. Hartman 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. Hartman. 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
- 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
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)
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
Does Dr. Hartman accept my insurance?
Dr. Hartman accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Hartman accept in Mount Vernon, NY?
Dr. Hartman in Mount Vernon, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Allied Benefit Systems
Cigna Group
Corporate Services
CVS Health (formerly Aetna)
Elderplan
Medicare
Molina Healthcare
Service Employees International Union (SEIU)
Unknown
View All Insurances
Where is Dr. Hartman's office located?

NewYork-Presbyterian Medical Group Westchester - Multispecialty
540 Gramatan Avenue
Mount Vernon, NY 10552
Would you like to schedule an appointment with Dr. Joshua Hartman?
Dr. Hartman has appointments available at his Mount Vernon, NY office. Please select a date and time below.
What is Dr. Hartman's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Hartman's National Provider Identifier (NPI) number is 1730421355.
What common questions do patients ask about Dr. Hartman?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Hartman
What is Dr. Joshua Hartman's specialty?
Dr. Hartman is a Gastroenterologist near Mount Vernon, 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. Joshua Hartman affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Hartman is affiliated with Newyork-Presbyterian/columbia University Irving Medical 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 Joshua Hartman accepting new patients in Mount Vernon, NY?
Yes, Dr. Joshua Hartman is accepting new patients at this time.
Does Dr. Joshua Hartman offer online booking?
Yes, you can use online booking to schedule an appointment with Dr. Hartman, or contact the office for more information.
How can I make an appointment with Joshua Hartman?
Please contact Dr. Hartman's office for information regarding telehealth appointment availability or for scheduling assistance.
Other Gastroenterologist Near Mount Vernon, NY

Dr. David Kauvar, MD is a Gastroenterologist, who primarily practices in Mount Vernon, NY with 1 additional practice location. He is board certified.

NewYork-Presbyterian Medical Group Westchester
540 Gramatan Avenue
Mount Vernon, NY 10552
NR
Gastroenterologist
Dr. Nathan Rosenfeld, MD is a Gastroenterologist, who primarily practices in New Rochelle, NY with 2 additional practice locations. He is board certified.
New Rochelle, NY
JE
Specialist
Dr. James Efiong, MD is a Specialist, who primarily practices in Mount Vernon, NY.
Mount Vernon, NY
Connect with DR. Hartman
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NewYork-Presbyterian Medical Group Westchester - Multispecialty
540 Gramatan Avenue
Mount Vernon, NY 10552