35 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Greenwald, Surgeon in Great Neck, NY?
Dr. Marc Greenwald, MD is a Surgeon, who primarily practices in Great Neck, NY with 1 additional practice location. He has been practicing for over 35 years and is board certified by the American Board of Colon & Rectal Surgery and American Board of Surgery. Dr. Greenwald graduated from Albert Einstein College of Medicine and completed his residency at Montefiore Medical Center. Dr. Greenwald is fluent in English and Spanish, and is currently seeing new patients. Dr. Greenwald’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Greenwald’s office at (516) 482-8657.
What are Areas of Expertise for Dr. Greenwald?
Dr. Marc Greenwald, MD is a highly-rated, board-certified Surgeon known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Greenwald empowers patients to confidently navigate their health journey, specializing in Anal Cancer, Anorectal Disorders, Colon & Rectal Cancer & Surgery, Colon & Rectal Cancer-Familial Polyposis, Colon Cancer Screening, Colonoscopy, Crohn's Disease, Diverticulitis, Fistula-Complex, Hemorrhoids, Laparoscopic Surgery, Telemedicine, Ulcerative Colitis, or comprehensive wellness support. Serving the Great Neck/NY community, Dr. Greenwald is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Greenwald go to medical school and complete their residency?
Fellowship: St Francis Hospital
Residency: Montefiore Medical Center
Medical School: Albert Einstein College of Medicine
Is Dr. Greenwald board certified in Surgeon?
Yes, Dr. Marc Greenwald, MD is board certified by the American Board of Colon & Rectal Surgery , American Board of Surgery
What languages does Dr. Greenwald speak?
Dr. Greenwald and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Greenwald treat?
As a Surgeon, Dr. Greenwald 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. Greenwald. 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:
- Hemorrhoidal Skin Tags
- Hemorrhoids
- Third Degree Hemorrhoids
- Second Degree Hemorrhoids
- Perianal Blood Clot
- Anal Disorder
- Anal skin tags
- Perianal skin tags
- Leftover hemorrhoid skin
- Piles
- Anal veins
- Swollen rectal veins
- Prolapsed hemorrhoids
- Grade 3 hemorrhoids
- Severe hemorrhoids
- Internal hemorrhoids that prolapse
- Grade 2 hemorrhoids
- Moderate hemorrhoids
- Thrombosed Hemorrhoid
- External Hemorrhoid Clot
- Blood Clot near Anus
ICD-10 Codes:
- K644: Residual hemorrhoidal skin tags
- K648: Other hemorrhoids
- K642: Third degree hemorrhoids
- K641: Second degree hemorrhoids
- K645: Perianal venous thrombosis
Also known as:
- Anal Spasm
- Anal Fistula
- Anal Disorder
- Fistulas
- Rectal Spasm
- Proctalgia Fugax
- Anal Muscle Spasm
- Perianal Fistula
- Fistula-in-Ano
- Abnormal Anal Tract
ICD-10 Codes:
- K594: Anal spasm
- K603: Anal fistula
Also known as:
- Colorectal Cancer
- Rectal cancer
- Colon cancer
- Bowel cancer
- Malignant neoplasm of rectum
ICD-10 Codes:
- C20: Malignant neoplasm of rectum
Also known as:
- Large Intestine Diverticulitis
- Diverticulosis and Diverticulitis
- Inflamed Colon Diverticula
- Colon Diverticular Inflammation
ICD-10 Codes:
- K5732: Diverticulitis of large intestine without perforation or abscess without bleeding
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Rectal Bleeding
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
ICD-10 Codes:
- K625: Hemorrhage of anus and rectum
Also known as:
- Anal Fissure
- Anal Disorder
- Rectal Tear
- Fissure in Anus
- Perianal Fissure
ICD-10 Codes:
- K602: Anal fissure, unspecified
Also known as:
- Other Pre-Procedure Examination
- Various pre-op checks
- Miscellaneous pre-surgery exams
- Other pre-treatment assessments
ICD-10 Codes:
- Z01818: Encounter for other preprocedural examination
Also known as:
- Rectal Prolapse
- Pelvic Floor Disorder
- Rectal Disorder
- Protruding Rectum
- Bowel Prolapse
- Rectal Eversion
ICD-10 Codes:
- K623: Rectal prolapse
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:
- Digestive System Surgery Aftercare
- After Surgery
- Post-gastrointestinal surgery care
- Stomach surgery aftercare
- Bowel surgery recovery
ICD-10 Codes:
- Z48815: Encounter for surgical aftercare following surgery on the digestive system
Also known as:
- Cancer Surgery Aftercare
- After Surgery
- Cancer
- Post-cancer surgery care
- Oncology aftercare
- Cancer recovery follow-up
ICD-10 Codes:
- Z483: Aftercare following surgery for neoplasm
Also known as:
- Ileostomy Care
- Ostomy
- Ileostomy Management
- Small Intestine Stoma Care
- Ileostomy Follow-up
ICD-10 Codes:
- Z432: Encounter for attention to ileostomy
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:
- Other Anal and Rectal Condition
- Anal Disorder
- Rectal Disorder
- Proctitis
- Anal Disorders
- Rectal Disorders
ICD-10 Codes:
- K6289: Other specified diseases of anus and rectum
Which procedures does Dr. Greenwald perform as a Surgeon?
As a Surgeon, procedures performed by a Dr. Marc Greenwald may include:
- Abdominal Wall Reconstruction
- Amputation
- Appendicitis / Appendectomy
- Brain Aneurysm Treatment
- Brain Surgery
- Brain Tumor Evaluation
- Central Line Placement
- Cerebral Shunt
For detailed information, please contact Dr. Greenwald's office.
Does Dr. Greenwald accept my insurance?
Dr. Greenwald accepts most major insurance plans. Important: Please call our office at (516) 482-8657 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Greenwald accept in Great Neck, NY?
Dr. Greenwald in Great Neck, 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
Allied Benefit Systems
Corporate Services
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Express Scripts
MagnaCare Rx
Medicare
Service Employees International Union (SEIU)
View All Insurances
Where is Dr. Greenwald's office located?
Dr. Marc Greenwald's Primary Practice
310 E Shore Rd Ste 203
Great Neck, NY 11023
(516) 482-8657
What is Dr. Greenwald's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Greenwald's National Provider Identifier (NPI) number is 1174618557.
What common questions do patients ask about Dr. Greenwald?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Greenwald
What is Dr. Marc Greenwald's specialty?
Dr. Greenwald is a Surgeon near Great Neck, NY. General surgeons are experts in diagnosing and managing surgical conditions which includes preoperative, operative, and postoperative care, as well as addressing complications. Their expertise include the areas such as the alimentary tract, breast, abdomen, skin and soft tissue, endocrine system, head and neck, pediatric surgery, surgical critical care, surgical oncology, trauma, burns, and vascular surgery. General surgeons increasingly utilize minimally invasive and endoscopic techniques to provide proper care. In addition to this, many general surgeons have expertise in transplantation, plastic, and cardiothoracic surgery. Contact Dr. Greenwald to book an appointment today.
Is this Dr. Marc Greenwald affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Greenwald is affiliated with North Shore University 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
Where can I learn more about Surgeon?
Explore Surgeon 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 Marc Greenwald accepting new patients in Great Neck, NY?
Yes, Dr. Marc Greenwald is accepting new patients at this time.
Does Dr. Marc Greenwald offer online booking?
Please contact Dr. Greenwald's office at (516) 482-8657 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Marc Greenwald?
Please contact Dr. Greenwald's office at (516) 482-8657 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Marc Greenwald have?
Dr. Marc Greenwald is certified by the American Board of Colon & Rectal Surgery and American Board of Surgery.
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