32 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Gilder, Colon & Rectal Surgeon (Proctologist) in Livingston, NJ?
Dr. Mark Gilder, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Livingston, NJ with 2 additional practice locations. He has been practicing for over 32 years and is board certified. Dr. Gilder completed his residency at St Francis Hosp Med Ctr, Colon And Rectal Surgery; North Shore Univ Hosp, General Surgery. Dr. Gilder is fluent in English and Portuguese, and is currently seeing new patients. Dr. Gilder’s practice accepts Medicaid, Medicare, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Gilder’s office.
What are Areas of Expertise for Dr. Gilder?
Dr. Mark Gilder, MD is a highly-rated, board-certified Colon & Rectal Surgeon (Proctologist) 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. Gilder empowers patients to confidently navigate their health journey, specializing in Anorectal Disorders, Colon & Rectal Cancer & Surgery, Colonoscopy, Inflammatory Bowel Disease, Minimally Invasive Surgery, or comprehensive wellness support. Serving the Livingston/NJ community, Dr. Gilder is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Gilder go to medical school and complete their residency?
Residency: St Francis Hosp Med Ctr, Colon And Rectal Surgery; North Shore Univ Hosp, General Surgery | North Shore University Hospital
Medical School: New York Med Coll- Valhalla Ny
Is Dr. Gilder board certified as a Colon & Rectal Surgeon (Proctologist)?
Yes, Dr. Mark Gilder, MD is board certified by the American Board of Colon & Rectal Surgery , American Board of Surgery
What languages does Dr. Gilder speak?
Dr. Gilder and their clinical team can communicate with patients in the following languages:
English
Portuguese
What conditions does Dr. Gilder treat?
As a Colon & Rectal Surgeon (Proctologist), Dr. Gilder 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. Gilder. 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 here.
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:
- Hemorrhoids
- Piles
- Anal veins
- Swollen rectal veins
- Swollen Veins in Anus
- Anal Lumps
ICD-10 Codes:
- K648: Other hemorrhoids
- K649: Unspecified hemorrhoids
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
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:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
Also known as:
- Anal Fistula
- Anal Disorder
- Fistulas
- Perianal Fistula
- Fistula-in-Ano
- Abnormal Anal Tract
ICD-10 Codes:
- K603: Anal fistula
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:
- Colorectal Cancer
- Rectal cancer
- Colon cancer
- Bowel cancer
- Malignant neoplasm of rectum
ICD-10 Codes:
- C20: Malignant neoplasm of rectum
What procedures does Dr. Gilder perform?
As a Colon & Rectal Surgeon (Proctologist), Dr. Gilder 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. Gilder. 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 here.
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:
- Anal Fistula Surgery
- Fistulectomy
- Fistulotomy
- Intersphincteric Fistula Repair
- Perianal Fistula Surgery
- Anal Fistula Repair
CPT Codes:
- 46275: Surgical treatment of anal fistula (fistulectomy/fistulotomy); intersphincteric
- 46280: Surgical treatment of anal fistula (fistulectomy/fistulotomy); transsphincteric, suprasphincteric, extrasphincteric or multiple, including placement of seton, when performed
Also known as:
- Removal of Multiple Hemorrhoids
- Hemorrhoidectomy
- Internal and External Hemorrhoid Surgery
- Piles Removal Surgery
CPT Codes:
- 46260: Hemorrhoidectomy, internal and external, 2 or more columns/groups;
Also known as:
- Colonoscopy with Injections
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
CPT Codes:
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
Also known as:
- Hemorrhoid Removal Surgery
- Hemorrhoidectomy
- Piles Surgery
- Internal and External Hemorrhoid Excision
CPT Codes:
- 46255: Hemorrhoidectomy, internal and external, single column/group;
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)
Also known as:
- Extensive Anal Lesion Removal
- Anal wart removal
- Destruction of anal condyloma
- Anal papilloma treatment
- Anal lesion ablation
CPT Codes:
- 46924: Destruction of lesion(s), anus (eg, condyloma, papilloma, molluscum contagiosum, herpetic vesicle), extensive (eg, laser surgery, electrosurgery, cryosurgery, chemosurgery)
Also known as:
- Anal Biopsy
- Rectal Wall Biopsy
- Anorectal Biopsy
- Anal Tissue Sample
CPT Codes:
- 45100: Biopsy of anorectal wall, anal approach (eg, congenital megacolon)
Also known as:
- Removal of Anal Skin Tags
- Anal Papillae Excision
- Perianal Skin Tag Removal
- Anorectal Tag Excision
CPT Codes:
- 46230: Excision of multiple external papillae or tags, anus
Also known as:
- Surgical Anorectal Exam with Anesthesia
- Anesthesia
- Diagnostic anorectal exam under anesthesia
- Rectal exam with general anesthesia
- Anorectal surgery for diagnosis
CPT Codes:
- 45990: Anorectal exam, surgical, requiring anesthesia (general, spinal, or epidural), diagnostic
Also known as:
- Anal Lesion Excision
- Removal of Anal Warts
- Surgical Excision of Anal Lesions
- Anus Lesion Removal
CPT Codes:
- 46922: Destruction of lesion(s), anus (eg, condyloma, papilloma, molluscum contagiosum, herpetic vesicle), simple; surgical excision
Also known as:
- Removal of Rectal Tumor
- Transanal Rectal Tumor Excision
- Partial Thickness Rectal Tumor Removal
- Rectal Lesion Excision
CPT Codes:
- 45171: Excision of rectal tumor, transanal approach; not including muscularis propria (ie, partial thickness)
Does Dr. Gilder accept my insurance?
Dr. Gilder 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. Gilder accept in Livingston, NJ?
Dr. Gilder in Livingston, NJ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
Corporate Services
CVS Health (formerly Aetna)
Horizon BlueCross BlueShield
Humana
Independence Health Group
Medicare
Oscar Health
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Gilder's office located?
What is Dr. Gilder's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Gilder's National Provider Identifier (NPI) number is 1356316525.
What common questions do patients ask about Dr. Gilder?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Gilder
What is Dr. Mark Gilder's specialty?
Dr. Gilder is a Colon & Rectal Surgeon (Proctologist) near Livingston, NJ. A colon and rectal surgeon possesses the expertise to diagnose and treat a variety of ailments affecting the intestinal tract, including the colon, rectum, anal canal, and perianal area, through both medical and surgical interventions. Furthermore, this professional also engages with other organs and tissues, including the liver, urinary system, and female reproductive system, that are relevant to primary intestinal disorders. Contact Dr. Gilder to book an appointment today.
Is this Dr. Mark Gilder affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Gilder is affiliated with Cooperman Barnabas 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
Where can I learn more about Colon & Rectal Surgeon (Proctologist)?
Explore Colon & Rectal Surgeon (Proctologist) 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 Mark Gilder accepting new patients in Livingston, NJ?
Yes, Dr. Mark Gilder is accepting new patients at this time.
Does Dr. Mark Gilder offer online booking?
Please contact Dr. Gilder's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark Gilder?
Please contact Dr. Gilder's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mark Gilder have?
Dr. Mark Gilder is certified by the American Board of Colon & Rectal Surgery and American Board of Surgery.
Other Colon & Rectal Surgeon (Proctologist) Near Livingston, NJ
Colon & Rectal Surgeon (Proctologist)
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SA
Colon & Rectal Surgeon (Proctologist)
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