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Dr. Sergio Casillas-Romero, MD

Dr. Sergio Casillas-Romero, MD

Norwich, CT

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Casillas-Romero, Colon & Rectal Surgeon (Proctologist) in Norwich, CT?

    Dr. Sergio Casillas-Romero, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Norwich, CT with 1 additional practice location. He is board certified. Dr. Casillas-Romero is fluent in English and Spanish, and is currently seeing new patients. Dr. Casillas-Romero’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Casillas-Romero’s office at (860) 204-9126.

    Is Dr. Casillas-Romero board certified as a Colon & Rectal Surgeon (Proctologist)?

    Yes, Dr. Sergio Casillas-Romero, MD is board certified by the American Board of Colon & Rectal Surgery , American Board of Surgery

    What languages does Dr. Casillas-Romero speak?

    Dr. Casillas-Romero and their clinical team can communicate with patients in the following languages:

    • English

    • Spanish

    What conditions does Dr. Casillas-Romero treat?

    As a Colon & Rectal Surgeon (Proctologist), Dr. Casillas-Romero 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. Casillas-Romero. 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:

    • Hemorrhoids
    • Hemorrhoidal Skin Tags
    • Third Degree Hemorrhoids
    • Second Degree Hemorrhoids
    • Piles
    • Anal veins
    • Swollen rectal veins
    • Anal skin tags
    • Perianal skin tags
    • Leftover hemorrhoid skin
    • Prolapsed hemorrhoids
    • Grade 3 hemorrhoids
    • Severe hemorrhoids
    • Internal hemorrhoids that prolapse
    • Grade 2 hemorrhoids
    • Moderate hemorrhoids

    ICD-10 Codes:

    • K648: Other hemorrhoids
    • K644: Residual hemorrhoidal skin tags
    • K642: Third degree hemorrhoids
    • K641: Second degree hemorrhoids

    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:

    • Groin Hernia (One Side)
    • Incisional Hernia
    • Umbilical Hernia
    • Hernia
    • Inguinal Hernia
    • Unilateral Inguinal Hernia
    • Single Groin Hernia
    • Hernia in One Groin
    • Post-surgical Hernia
    • Surgical Incision Hernia
    • Scar Hernia
    • Belly Button Hernia
    • Navel Hernia
    • Umbilical Rupture

    ICD-10 Codes:

    • K4090: Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
    • K432: Incisional hernia without obstruction or gangrene
    • K429: Umbilical hernia without obstruction or gangrene

    Also known as:

    • Intestine Diverticulitis
    • Large Intestine Diverticulitis
    • Large Intestine Diverticulitis with Perforation and Abscess
    • Diverticulosis and Diverticulitis
    • Abscess
    • Inflamed Bowel Diverticula
    • Bowel Diverticular Inflammation
    • Inflamed Colon Diverticula
    • Colon Diverticular Inflammation
    • Inflamed Colon Diverticula with Abscess
    • Perforated Large Bowel Diverticulitis

    ICD-10 Codes:

    • K5792: Diverticulitis of intestine, part unspecified, without perforation or abscess without bleeding
    • K5732: Diverticulitis of large intestine without perforation or abscess without bleeding
    • K5720: Diverticulitis of large intestine with perforation and abscess without bleeding

    Also known as:

    • Anal Fistula
    • Perianal Fistula
    • Fistula in Anus
    • Rectal Fistula

    ICD-10 Codes:

    • K6030: Anal fistula, unspecified

    Also known as:

    • Anal Fissure
    • Anal Disorder
    • Rectal Tear
    • Fissure in Anus
    • Perianal Fissure

    ICD-10 Codes:

    • K602: Anal fissure, unspecified

    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:

    • 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:

    • 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:

    • Gallstones with Chronic Gallbladder Inflammation
    • Bile Duct Disease
    • Gallstones
    • Chronic cholecystitis with gallstones
    • Long-term gallbladder inflammation

    ICD-10 Codes:

    • K8010: Calculus of gallbladder with chronic cholecystitis without obstruction

    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:

    • Large Intestine Diverticulosis
    • Diverticulosis and Diverticulitis
    • Diverticular Disease
    • Colon Diverticula
    • Pockets in the Colon

    ICD-10 Codes:

    • K5730: Diverticulosis of large intestine without perforation or abscess without bleeding

    Also known as:

    • Benign Transverse Colon Polyp
    • Benign Tumor
    • Colonic Polyps
    • Colon Polyps
    • Non-cancerous transverse colon growth
    • Transverse colon adenoma
    • Transverse colon benign tumor

    ICD-10 Codes:

    • D123: Benign neoplasm of transverse colon

    What procedures does Dr. Casillas-Romero perform?

    As a Colon & Rectal Surgeon (Proctologist), Dr. Casillas-Romero 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. Casillas-Romero. 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:

    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy with Polyp Removal
    • Colonoscopy with Biopsy
    • Colonoscopy with Hemorrhoid Ligation
    • Colonoscopy Through Stoma
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Hemorrhoid Banding
    • Colon Exam with Ligation
    • Stoma Colonoscopy
    • Diagnostic Stoma Scope
    • Colostomy Colonoscopy

    CPT Codes:

    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 45380: Colonoscopy, flexible; with biopsy, single or multiple
    • 45398: Colonoscopy, flexible; with band ligation(s) (eg, hemorrhoids)
    • 44388: Colonoscopy through stoma; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Laparoscopic Inguinal Hernia Repair
    • Small Abdominal Hernia Repair
    • Abdominal Hernia Repair with Mesh
    • Inguinal Hernia Repair (Adults and Children 5+)
    • Laparoscopic Repair of Recurrent Inguinal Hernia
    • Keyhole Groin Hernia Surgery
    • Minimally Invasive Hernia Repair
    • Laparoscopic Hernioplasty
    • Ventral hernia repair
    • Umbilical hernia surgery
    • Epigastric hernia repair with mesh
    • Incisional hernia repair
    • Ventral Hernia Repair
    • Umbilical Hernia Repair
    • Incisional Hernia Repair
    • Epigastric Hernia Surgery
    • Groin Hernia Surgery
    • Reducible Inguinal Hernia Repair
    • First Inguinal Hernia Fix
    • Adult Inguinal Hernia Surgery
    • Recurrent Groin Hernia Surgery
    • Laparoscopic Inguinal Hernioplasty

    CPT Codes:

    • 49650: Laparoscopy, surgical; repair initial inguinal hernia
    • 49591: Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, spigelian), any approach (ie, open, laparoscopic, robotic), initial, including implantation of mesh or other prosthesis when performed, total length of defect(s); less than 3 cm, reducible
    • 49593: Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, spigelian), any approach (ie, open, laparoscopic, robotic), initial, including implantation of mesh or other prosthesis when performed, total length of defect(s); 3 cm to 10 cm, reducible
    • 49505: Repair initial inguinal hernia, age 5 years or older; reducible
    • 49651: Laparoscopy, surgical; repair recurrent inguinal hernia

    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:

    • 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:

    • Anal Fistula Surgery
    • Anal Skin Tag Removal
    • Fistulectomy
    • Fistulotomy
    • Perianal Fistula Repair
    • Anal Fistula Repair
    • Intersphincteric Fistula Repair
    • Perianal Fistula Surgery
    • Anal Papilla Excision
    • Perianal Skin Tag Removal
    • Anal Lesion Excision

    CPT Codes:

    • 46270: Surgical treatment of anal fistula (fistulectomy/fistulotomy); subcutaneous
    • 46280: Surgical treatment of anal fistula (fistulectomy/fistulotomy); transsphincteric, suprasphincteric, extrasphincteric or multiple, including placement of seton, when performed
    • 46275: Surgical treatment of anal fistula (fistulectomy/fistulotomy); intersphincteric
    • 46220: Excision of single external papilla or tag, anus

    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:

    • Laparoscopic Gallbladder Removal
    • Keyhole Gallbladder Surgery
    • Cholecystectomy Laparoscopic
    • Minimally Invasive Gallbladder Surgery

    CPT Codes:

    • 47562: Laparoscopy, surgical; cholecystectomy

    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:

    • Anal Fissure Removal with Muscle Release
    • Fissurectomy
    • Sphincterotomy
    • Anal Fissure Repair
    • Chronic Fissure Surgery

    CPT Codes:

    • 46200: Fissurectomy, including sphincterotomy, when performed

    Also known as:

    • Seton Placement
    • Fistula Seton Insertion
    • Drainage Seton Placement
    • Anal Fistula Treatment

    CPT Codes:

    • 46020: Placement of seton

    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 Sphincter Nerve Block
    • Internal Anal Sphincter Chemodenervation
    • Anal Sphincter Injection
    • Botox for Anal Fissure
    • Chemical Denervation of Anal Muscle

    CPT Codes:

    • 46505: Chemodenervation of internal anal sphincter

    Also known as:

    • Flexible Sigmoidoscopy with Biopsy
    • Colorectal Cancer Screening Tests
    • Sigmoid Colon Scope with Biopsy
    • Lower Endoscopy with Tissue Sample
    • Flexible Sigmoidoscopy and Biopsy
    • Rectum and Lower Colon Exam

    CPT Codes:

    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple

    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:

    • Anal Seton Removal
    • Seton Removal
    • Anal Marker Removal
    • Fistula Seton Removal

    CPT Codes:

    • 46030: Removal of anal seton, other marker

    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:

    • Inhalation Breathing Treatment
    • Nebulizer Treatment
    • Aerosol Treatment
    • IPPB Treatment
    • Airway Obstruction Treatment

    CPT Codes:

    • 94640: Pressurized or nonpressurized inhalation treatment for acute airway obstruction for therapeutic purposes and/or for diagnostic purposes such as sputum induction with an aerosol generator, nebulizer, metered dose inhaler or intermittent positive pressure breathing (IPPB) device

    Does Dr. Casillas-Romero accept my insurance?

    Dr. Casillas-Romero accepts most major insurance plans. Important: Please call our office at (860) 204-9126 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Casillas-Romero accept in Norwich, CT?

    Dr. Casillas-Romero in Norwich, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • CarePartners of Connecticut

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • EmblemHealth

    • Express Scripts

    • Medicare

    • OptumRx

    • State of Connecticut

    • State of Tennessee

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Casillas-Romero's office located?

    Dr. Sergio Casillas-Romero's Primary Practice

    12 Case St Ste 313

    Norwich, CT 06360

    (860) 204-9126

    Get Directions

    Dr. Sergio Casillas-Romero's Practice 2

    330 Washington St Ste 410

    Norwich, CT 06360

    (860) 889-9080

    Get Directions

    What is Dr. Casillas-Romero's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Casillas-Romero's National Provider Identifier (NPI) number is 1417035338.

    What common questions do patients ask about Dr. Casillas-Romero?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Casillas-Romero

    What is Dr. Sergio Casillas-Romero's specialty?

    Dr. Casillas-Romero is a Colon & Rectal Surgeon (Proctologist) near Norwich, CT. 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. Casillas-Romero to book an appointment today.

    Is this Dr. Sergio Casillas-Romero affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Casillas-Romero is affiliated with William W. Backus Hospital, Windham Hospital, Middlesex 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 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 Sergio Casillas-Romero accepting new patients in Norwich, CT?

    Yes, Dr. Sergio Casillas-Romero is accepting new patients at this time.

    Does Dr. Sergio Casillas-Romero offer online booking?

    Please contact Dr. Casillas-Romero's office at (860) 204-9126 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Sergio Casillas-Romero?

    Please contact Dr. Casillas-Romero's office at (860) 204-9126 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Sergio Casillas-Romero have?

    Dr. Sergio Casillas-Romero is certified by the American Board of Colon & Rectal Surgery and American Board of Surgery.

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