MC
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Casillas, Surgeon in Knoxville, TN?
Dr. Mark Casillas, MD is a Surgeon, who primarily practices in Knoxville, TN. He is board certified. Dr. Casillas is fluent in English, and is currently seeing new patients. Dr. Casillas’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Casillas’s office at (865) 305-5335.
What languages does Dr. Casillas speak?
Dr. Casillas and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Casillas treat?
As a Surgeon, Dr. Casillas 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. 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:
- 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:
- 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:
- Second Degree Hemorrhoids
- Third Degree Hemorrhoids
- First Degree Hemorrhoids
- Hemorrhoids
- Internal hemorrhoids that prolapse
- Grade 2 hemorrhoids
- Moderate hemorrhoids
- Prolapsed hemorrhoids
- Grade 3 hemorrhoids
- Severe hemorrhoids
- Internal hemorrhoids
- Grade 1 hemorrhoids
- Mild hemorrhoids
ICD-10 Codes:
- K641: Second degree hemorrhoids
- K642: Third degree hemorrhoids
- K640: First degree hemorrhoids
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:
- Anal Fistula
- Anal Dysplasia
- Anal Disorder
- Fistulas
- Perianal Fistula
- Fistula-in-Ano
- Abnormal Anal Tract
- Abnormal anal cells
- Precancerous anal changes
- Anal epithelial dysplasia
ICD-10 Codes:
- K603: Anal fistula
- K6282: Dysplasia of anus
Also known as:
- Ileostomy Care
- Colostomy Care
- Ostomy
- Ileostomy Management
- Small Intestine Stoma Care
- Ileostomy Follow-up
- Stoma Care
- Bowel Diversion Care
- Ostomy Bag Management
ICD-10 Codes:
- Z432: Encounter for attention to ileostomy
- Z433: Encounter for attention to colostomy
Also known as:
- Pre-Procedure Heart Examination
- Pre-Surgery Cardiac Checkup
- Heart Health Assessment (Before Procedure)
- Cardiovascular Clearance Exam
ICD-10 Codes:
- Z01810: Encounter for preprocedural cardiovascular examination
Also known as:
- Benign Cecum Polyp
- Benign Ascending Colon Polyp
- Benign Tumor
- Colonic Polyps
- Colon Polyps
- Non-cancerous cecum growth
- Cecal adenoma
- Cecum benign tumor
- Non-cancerous ascending colon growth
- Ascending colon adenoma
- Ascending colon benign tumor
ICD-10 Codes:
- D120: Benign neoplasm of cecum
- D122: Benign neoplasm of ascending colon
Also known as:
- Complete Bowel Incontinence
- Bowel Incontinence
- Full fecal incontinence
- Total loss of bowel control
- Severe accidental bowel leakage
ICD-10 Codes:
- R159: Full incontinence of feces
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Chronic Anal Fissure
- Anal Disorder
- Long-Term Anal Tear
- Persistent Rectal Fissure
- Chronic Fissure in Anus
ICD-10 Codes:
- K601: Chronic anal fissure
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:
- 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:
- Having an Ileostomy
- Ostomy
- Ostomy Surgery of the Bowel
- Ileal stoma
- Bowel diversion surgery
- Small intestine ostomy
ICD-10 Codes:
- Z932: Ileostomy status
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. Casillas perform as a Surgeon?
As a Surgeon, procedures performed by a Dr. Mark Casillas 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. Casillas' office.
Does Dr. Casillas accept my insurance?
Dr. Casillas accepts most major insurance plans. Important: Please call our office at (865) 305-5335 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Casillas accept in Knoxville, TN?
Dr. Casillas in Knoxville, TN accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Blue Cross Blue Shield of Michigan
Christian Healthcare Ministries
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Express Scripts
Humana
Medicare
View All Insurances
Where is Dr. Casillas' office located?
Dr. Mark Casillas' Primary Practice
1924 Alcoa Hwy # U56
Knoxville, TN 37920
(865) 305-5335
What is Dr. Casillas's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Casillas's National Provider Identifier (NPI) number is 1245458082.
What common questions do patients ask about Dr. Casillas?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Casillas
What is Dr. Mark Casillas's specialty?
Dr. Casillas is a Surgeon near Knoxville, TN. 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. Casillas to book an appointment today.
Is this Dr. Mark Casillas affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Casillas is affiliated with The University Of Tennessee 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 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 Mark Casillas accepting new patients in Knoxville, TN?
Yes, Dr. Mark Casillas is accepting new patients at this time.
Does Dr. Mark Casillas offer online booking?
Please contact Dr. Casillas's office at (865) 305-5335 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark Casillas?
Please contact Dr. Casillas's office at (865) 305-5335 for information regarding telehealth appointment availability or for scheduling assistance.
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