EN
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Nellis, Gastroenterologist in Allentown, PA?
Dr. Eric Nellis is a Gastroenterologist, who primarily practices in Allentown, PA with 2 additional practice locations. He is board certified. Dr. Nellis is fluent in English, and is currently seeing new patients. Dr. Nellis’s practice accepts Cigna, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nellis’s office.
What languages does Dr. Nellis speak?
Dr. Nellis and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Nellis treat?
As a Gastroenterologist, Dr. Nellis 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. Nellis. 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:
- Acid Reflux
- GERD with Esophagitis
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Eosinophilic Esophagitis
- Gastroesophageal Reflux
- Heartburn
- Indigestion
- Reflux Esophagitis
- Acid Reflux Esophagus Inflammation
- Heartburn with Esophagus Damage
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
- K2100: Gastro-esophageal reflux disease with esophagitis, without bleeding
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:
- Difficulty Swallowing
- Other Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
- Swallowing problems
ICD-10 Codes:
- R1310: Dysphagia, unspecified
- R1319: Other dysphagia
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:
- Dark, Tarry Stools (Melena)
- Rectal Bleeding
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Melena
- Black Stools
- Upper GI Bleed Signs
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
ICD-10 Codes:
- K921: Melena
- K625: Hemorrhage of anus and rectum
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:
- Stomach Inflammation
- Chronic Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
- Chronic gastritis
- Long-term stomach inflammation
- Persistent stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, without bleeding
- K2950: Unspecified chronic gastritis without bleeding
Also known as:
- Change in Bowel Habits
- Bowel Movement
- Altered Bowel Habits
- Irregular Bowel Movements
- Changes in Pooping
ICD-10 Codes:
- R194: Change in bowel habit
Also known as:
- Barrett's Esophagus
- Other Esophagus Condition
- Esophagus Disorder
- Barrett’s Esophagus
- Barrett's condition
- Esophageal metaplasia
- Various esophageal diseases
- Miscellaneous esophagus problems
- Other food pipe issues
ICD-10 Codes:
- K2270: Barrett's esophagus without dysplasia
- K2289: Other specified disease of esophagus
Also known as:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
Also known as:
- Abnormal Digestive Tract Imaging
- Abnormal GI scan
- Unusual digestive imaging
- Digestive system imaging findings
ICD-10 Codes:
- R933: Abnormal findings on diagnostic imaging of other parts of digestive tract
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Nausea and Vomiting
- Feeling Sick and Throwing Up
- Stomach Flu Symptoms
- Queasy and Vomiting
ICD-10 Codes:
- R112: Nausea with vomiting, unspecified
Also known as:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5909: Other constipation
Also known as:
- Eosinophilic Esophagitis
- EoE
- Allergic Esophagitis
- Eosinophilic Inflammation of Esophagus
ICD-10 Codes:
- K200: Eosinophilic esophagitis
Which procedures does Dr. Nellis perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Eric Nellis may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Nellis' office.
Does Dr. Nellis accept my insurance?
Dr. Nellis 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. Nellis accept in Allentown, PA?
Dr. Nellis in Allentown, PA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Capital BlueCross
Centene
CVS Health (formerly Aetna)
Highmark Inc.
Humana
Independence Blue Cross
Medicare
Other TPA
UnitedHealthcare
UPMC Health Plan
View All Insurances
Where is Dr. Nellis' office located?
What is Dr. Nellis's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Nellis's National Provider Identifier (NPI) number is 1699112359.
What common questions do patients ask about Dr. Nellis?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Nellis
What is Dr. Eric Nellis's specialty?
Dr. Nellis is a Gastroenterologist near Allentown, PA. 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. Nellis to book an appointment today.
Is this Dr. Eric Nellis affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Nellis is affiliated with Lehigh Valley Health Network– Cedar Crest, Lehigh Valley Health Network- Pocono 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 Eric Nellis accepting new patients in Allentown, PA?
Yes, Dr. Eric Nellis is accepting new patients at this time.
Does Dr. Eric Nellis offer online booking?
Please contact Dr. Nellis's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Eric Nellis?
Please contact Dr. Nellis's office for information regarding telehealth appointment availability or for scheduling assistance.
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