TN
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Nealis, Gastroenterologist in Chicago, IL?
Dr. Thomas Nealis, MD is a Gastroenterologist, who primarily practices in Chicago, IL with 2 additional practice locations. He is board certified. Dr. Nealis graduated from Georgetown University School of Medicine. Dr. Nealis is fluent in English, and is currently seeing new patients. Dr. Nealis’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nealis’s office at (331) 732-4750.
Where did Dr. Nealis go to medical school and complete their residency?
Medical School: Georgetown University School of Medicine
Is Dr. Nealis board certified as a Gastroenterologist?
Yes, Dr. Thomas Nealis, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Nealis speak?
Dr. Nealis and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Nealis treat?
As a Gastroenterologist, Dr. Nealis 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. Nealis. 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:
- 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:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5900: Constipation, unspecified
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Upper Middle Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1013: Epigastric pain
Also known as:
- Abnormal Bowel Movements
- Bowel Movement
- Unusual stool
- Changes in poop
- Fecal changes
ICD-10 Codes:
- R195: Other fecal abnormalities
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
What procedures does Dr. Nealis perform?
As a Gastroenterologist, Dr. Nealis 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. Nealis. 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:
- 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:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Also known as:
- EGD with Esophageal Balloon Dilation
- Colonoscopy with Injections
- Esophagus Widening Procedure (Endoscopic)
- Colonoscopy
- Colorectal Cancer Screening Tests
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
CPT Codes:
- 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
Also known as:
- Capsule Endoscopy
- Pill Camera
- Wireless Capsule Endoscopy
- Small Bowel Capsule Endoscopy
- Intestinal Imaging Pill
CPT Codes:
- 91110: Gastrointestinal tract imaging, intraluminal (eg, capsule endoscopy), esophagus through ileum, with interpretation and report
Does Dr. Nealis accept my insurance?
Dr. Nealis accepts most major insurance plans. Important: Please call our office at (331) 732-4750 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Nealis accept in Chicago, IL?
Dr. Nealis in Chicago, IL accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
CVS Health (formerly Aetna)
Express Scripts
Health Care Service Corporation (HCSC)
Humana
Medicare
State of Illinois
State of Nevada
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Nealis' office located?
Dr. Thomas Nealis' Primary Practice
675 N Saint Clair St Ste 17-250
Chicago, IL 60611
(331) 732-4750
What is Dr. Nealis's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Nealis's National Provider Identifier (NPI) number is 1841456423.
What common questions do patients ask about Dr. Nealis?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Nealis
What is Dr. Thomas Nealis's specialty?
Dr. Nealis is a Gastroenterologist near Chicago, IL. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Nealis to book an appointment today.
Is this Dr. Thomas Nealis affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Nealis is affiliated with Northwestern Memorial Hospital, Northwestern Medicine Delnor Hospital, Northwestern Medicine Palos Hospital, Northwestern Medicine Lake Forest Hospital, Northwestern Medicine Kishwaukee Hospital, Northwestern Medicine McHenry 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 Gastroenterologist?
Explore Gastroenterologist 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 Thomas Nealis accepting new patients in Chicago, IL?
Yes, Dr. Thomas Nealis is accepting new patients at this time.
Does Dr. Thomas Nealis offer online booking?
Please contact Dr. Nealis's office at (331) 732-4750 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Thomas Nealis?
Please contact Dr. Nealis's office at (331) 732-4750 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Thomas Nealis have?
Dr. Thomas Nealis is certified by the American Board of Internal Medicine.
Other Gastroenterologist Near Chicago, IL
Gastroenterologist
Accepting patientsDr. Maria Ferreira, MD is a Gastroenterologist, who primarily practices in Chicago, IL with 1 additional practice location. She has been practicing for over 32 years.
Chicago, IL
Gastroenterologist
Accepting patientsDr. Joseph Karacic, MD is a Gastroenterologist, who primarily practices in Chicago, IL with 1 additional practice location. He is board certified.
Chicago, IL
DC
Gastroenterologist
Accepting patientsDr. Dustin Carlson, MD is a Gastroenterologist, who primarily practices in Chicago, IL with 2 additional practice locations.
Chicago, IL