
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Dvorak, Colon & Rectal Surgeon (Proctologist) in Lexington, KY?
Dr. John Dvorak, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Lexington, KY. He is board certified. Dr. Dvorak graduated from Geisel School of Medicine at Dartmouth and completed his residency at Cleveland Clinic Foundation. Dr. Dvorak is fluent in English and Spanish, and is currently seeing new patients. Dr. Dvorak’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Dvorak’s office at (859) 278-6031.
What are Areas of Expertise for Dr. Dvorak?
Dr. John Dvorak, MD is a highly-rated, board-certified Colon & Rectal Surgeon (Proctologist) known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Dvorak empowers patients to confidently navigate their health journey, specializing in Anorectal Disorders, Colon & Rectal Cancer & Surgery, Colon Cancer Screening, and comprehensive wellness support. Serving the Lexington, KY community, Dr. Dvorak is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Dvorak go to medical school and complete their residency?
Residency: Cleveland Clinic Foundation
Medical School: Geisel School of Medicine at Dartmouth
Is Dr. Dvorak board certified as a Colon & Rectal Surgeon (Proctologist)?
Yes, Dr. John Dvorak, MD is board certified by the American Board of Colon & Rectal Surgery , American Board of Surgery
What languages does Dr. Dvorak speak?
Dr. Dvorak and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does a Colon & Rectal Surgeon (Proctologist) like Dr. Dvorak typically treat?
As a Colon & Rectal Surgeon (Proctologist), Dr. Dvorak 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. Dvorak. 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.
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:
- Follow-up After Treatment (Non-Cancer)
- Post-Treatment Check-up
- Aftercare Visit
- Recovery Monitoring Exam
ICD-10 Codes:
- Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
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:
- 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
Also known as:
- Third Degree Hemorrhoids
- Hemorrhoids
- Prolapsed hemorrhoids
- Grade 3 hemorrhoids
- Severe hemorrhoids
ICD-10 Codes:
- K642: Third degree hemorrhoids
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
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:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5900: Constipation, unspecified
What procedures does a Colon & Rectal Surgeon (Proctologist) like Dr. Dvorak typically perform?
As a Colon & Rectal Surgeon (Proctologist), Dr. Dvorak 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. Dvorak. 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.
Also known as:
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- 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
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
Also known as:
- Laparoscopic Partial Colon Removal
- Laparoscopic Colon Mobilization
- Minimally invasive colectomy
- Laparoscopic bowel resection
- Keyhole colon surgery
- Splenic Flexure Mobilization
- Laparoscopic Colectomy Assist
- Colon Take-down Surgery
CPT Codes:
- 44207: Laparoscopy, surgical; colectomy, partial, with anastomosis, with coloproctostomy (low pelvic anastomosis)
- 44213: Laparoscopy, surgical, mobilization (take-down) of splenic flexure performed in conjunction with partial colectomy (List separately in addition to primary procedure)
Also known as:
- Rigid Proctosigmoidoscopy
- Diagnostic Proctosigmoidoscopy
- Rectal and Lower Colon Scope
- Rigid Sigmoidoscopy
CPT Codes:
- 45300: Proctosigmoidoscopy, rigid; diagnostic, with or without collection of specimen(s) by brushing or washing (separate procedure)
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:
- 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. Dvorak accept my insurance?
Dr. Dvorak accepts most major insurance plans. Important: Please call our office at (859) 278-6031 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Dvorak accept in Lexington, KY?
Dr. Dvorak in Lexington, KY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Aither Health
CareSource
Cigna Group
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Federal government of the United States
Humana
Medicare
UMR Administered Payer
UnitedHealth Group
View All Insurances
Where is Dr. Dvorak's office located?
What hospitals are Dr. Dvorak affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Dvorak has admitting privileges at the following hospitals:
Baptist Health Lexington,Lexington, KY
Ranked in 6 Procedures

Baptist Health Lexington,Lexington, KY
Ranked in 6 Procedures
Saint Joseph Hospital - Lexington, KY,Lexington, KY
Saint Joseph Hospital - Lexington, KY,Lexington, KY
What is Dr. Dvorak's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Dvorak's National Provider Identifier (NPI) number is 1902807985.
What common questions do patients ask about Dr. Dvorak?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Dvorak
What is Dr. John Dvorak's specialty?
Dr. Dvorak is a Colon & Rectal Surgeon (Proctologist) near Lexington, KY.
What does a Colon & Rectal Surgeon (Proctologist) do?
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.
Is Dr. John Dvorak affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Dvorak is affiliated with Baptist Health Lexington 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
When to see a Colon & Rectal Surgeon (Proctologist)?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Colon & Rectal Surgeon (Proctologist). Explore 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 Dr. John Dvorak accepting new patients in Lexington, KY?
Yes, Dr. John Dvorak is accepting new patients at this time.
Does Dr. John Dvorak offer online booking?
Please contact Dr. Dvorak's office at (859) 278-6031 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Dr. John Dvorak?
Please contact Dr. Dvorak's office at (859) 278-6031 to schedule an appointment.
Where is Dr. Dvorak's office located?
Dr. Dvorak's office is located in Lexington, KY.
Which board certifications does Dr. John Dvorak have?
Dr. John Dvorak is certified by the American Board of Colon & Rectal Surgery and American Board of Surgery.
Other Colon & Rectal Surgeon (Proctologist) Near Lexington, KY
FR
Colon & Rectal Surgeon (Proctologist)
Dr. Frank Rutigliano is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Lexington, KY with 2 additional practice locations.
Lexington, KY

Colon & Rectal Surgeon (Proctologist)
Dr. David Svetich, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Lexington, KY. He has been practicing for over 38 years and is board certified.
Lexington, KY

Colon & Rectal Surgeon (Proctologist)
Dr. Charles Papp, MD is a Colon & Rectal Surgeon (Proctologist), who primarily practices in Lexington, KY. He is board certified.
Lexington, KY