GL
20 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Lesser, Gastroenterologist in Newark, NJ?
Dr. Gregory Lesser, MD is a Gastroenterologist, who primarily practices in Newark, NJ with 1 additional practice location. He has been practicing for over 20 years and is board certified. Dr. Lesser is fluent in English and Spanish, and is currently seeing new patients. Dr. Lesser’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Lesser’s office at (973) 645-0000.
Where did Dr. Lesser go to medical school and complete their residency?
Medical School: American University of The Caribbean; Plymouth, Montserrat
Is Dr. Lesser board certified as a Gastroenterologist?
Yes, Dr. Gregory Lesser, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Lesser speak?
Dr. Lesser and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Lesser treat?
As a Gastroenterologist, Dr. Lesser 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. Lesser. 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:
- Abdominal Bloating
- Gas
- Gas in the Digestive Tract
- Bloated Stomach
- Swollen Belly
- Gaseous Distension
ICD-10 Codes:
- R140: Abdominal distension (gaseous)
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
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
Also known as:
- Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, without bleeding
Also known as:
- Barrett's Esophagus
- Esophagus Disorder
- Barrett’s Esophagus
- Barrett's condition
- Esophageal metaplasia
ICD-10 Codes:
- K2270: Barrett's esophagus without dysplasia
What procedures does Dr. Lesser perform?
As a Gastroenterologist, Dr. Lesser 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. Lesser. 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:
- 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 Colonoscopy with Biopsy
- Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
CPT Codes:
- 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
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
Also known as:
- Hemorrhoid Removal with Rubber Band Ligation
- Rubber Band Ligation for Hemorrhoids
- Internal Hemorrhoid Ligation
- Banding of Hemorrhoids
- Hemorrhoid Banding
CPT Codes:
- 46221: Hemorrhoidectomy, internal, by rubber band ligation(s)
Also known as:
- Flexible Sigmoidoscopy
- Colorectal Cancer Screening Tests
- Sigmoidoscopy
- Lower colon exam
- Flexible colon scope
- Rectum and lower colon check
CPT Codes:
- 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Does Dr. Lesser accept my insurance?
Dr. Lesser accepts most major insurance plans. Important: Please call our office at (973) 645-0000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Lesser accept in Newark, NJ?
Dr. Lesser in Newark, NJ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Carepoint Health
Crown Cork and Seal Company
CVS Health (formerly Aetna)
Express Scripts
Horizon BlueCross BlueShield
Medical Center East Health Plan
Medicare
Samaritan Health Services
UnitedHealthcare
View All Insurances
Where is Dr. Lesser's office located?
What is Dr. Lesser's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Lesser's National Provider Identifier (NPI) number is 1023096575.
What common questions do patients ask about Dr. Lesser?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Lesser
What is Dr. Gregory Lesser's specialty?
Dr. Lesser is a Gastroenterologist near Newark, NJ. 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. Lesser to book an appointment today.
Is this Dr. Gregory Lesser affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Lesser is affiliated with Atlantic Health Overlook Medical Center, Englewood Hospital 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
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 Gregory Lesser accepting new patients in Newark, NJ?
Yes, Dr. Gregory Lesser is accepting new patients at this time.
Does Dr. Gregory Lesser offer online booking?
Please contact Dr. Lesser's office at (973) 645-0000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Gregory Lesser?
Please contact Dr. Lesser's office at (973) 645-0000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Gregory Lesser have?
Dr. Gregory Lesser is certified by the American Board of Internal Medicine.
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