Accepting patients
Who is Dr. Frese, Gastroenterologist in Hartford, CT?
Dr. John Frese, MD is a Gastroenterologist, who primarily practices in Hartford, CT with 2 additional practice locations. He is board certified. Dr. Frese graduated from University of Connecticut School of Medicine and completed his residency at University of Connecticut Program A. Dr. Frese is fluent in English and Spanish, and is currently seeing new patients. Dr. Frese’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Frese’s office.
Where did Dr. Frese go to medical school and complete their residency?
Residency: University of Connecticut Program A
Medical School: University of Connecticut School of Medicine
What languages does Dr. Frese speak?
Dr. Frese and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Frese treat?
As a Gastroenterologist, Dr. Frese 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. Frese. 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 Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
- Z860109: Personal history of other colon polyps
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:
- Dark, Tarry Stools (Melena)
- Rectal Bleeding
- Vomiting Blood
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Nausea and Vomiting
- Melena
- Black Stools
- Upper GI Bleed Signs
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
- Hematemesis
- Bloody Vomit
- Upper GI Bleeding
ICD-10 Codes:
- K921: Melena
- K625: Hemorrhage of anus and rectum
- K920: Hematemesis
Also known as:
- History of Adenomatous and Serrated Colon Polyps
- Past Colon Polyps
- Previous Adenomas
- History of Precancerous Colon Growths
ICD-10 Codes:
- Z860101: Personal history of adenomatous and serrated colon polyps
Also known as:
- Upper Middle Abdominal Pain
- Widespread Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
- General stomach pain
- Overall belly pain
- Diffuse abdominal pain
ICD-10 Codes:
- R1013: Epigastric pain
- R1084: Generalized abdominal pain
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
- D649: Anemia, unspecified
Also known as:
- Indigestion
- Gas in the Digestive Tract
- Indigestion (Dyspepsia)
- Dyspepsia
- Upset Stomach
- Stomach Discomfort
ICD-10 Codes:
- K30: Functional dyspepsia
Also known as:
- Barrett's Esophagus
- Esophagus Disorder
- Barrett’s Esophagus
- Barrett's condition
- Esophageal metaplasia
ICD-10 Codes:
- K2270: Barrett's esophagus without dysplasia
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
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:
- Ulcerative Pancolitis
- Ulcerative Colitis
- Chronic Pancolitis
- Extensive Ulcerative Colitis
- Inflammatory Bowel Disease (IBD)
ICD-10 Codes:
- K5100: Ulcerative (chronic) pancolitis without complications
Also known as:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5900: Constipation, unspecified
Also known as:
- Abnormal Liver Function Test
- Liver Disease
- Irregular Liver Function Study
- Unusual Liver Exam
- Liver Disease Diagnosis
ICD-10 Codes:
- R945: Abnormal results of liver function studies
Which procedures does Dr. Frese perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. John Frese 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. Frese's office.
Does Dr. Frese accept my insurance?
Dr. Frese 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. Frese accept in Hartford, CT?
Dr. Frese in Hartford, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
CarePartners of Connecticut
CVS Health (formerly Aetna)
Department of Defense / Tricare
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Express Scripts
Medicare
OptumRx
UnitedHealthcare
View All Insurances
Where is Dr. Frese's office located?
What is Dr. Frese's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Frese's National Provider Identifier (NPI) number is 1457316382.
What common questions do patients ask about Dr. Frese?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Frese
What is Dr. John Frese's specialty?
Dr. Frese is a Gastroenterologist near Hartford, CT. 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. Frese to book an appointment today.
Is this Dr. John Frese affiliated with a ranked Castle Connolly Top Hospital?
No, Frese is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Lawrence & Memorial Hospital. Castle Connolly Top Hospitals 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 John Frese accepting new patients in Hartford, CT?
Yes, Dr. John Frese is accepting new patients at this time.
Does Dr. John Frese offer online booking?
Please contact Dr. Frese's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Frese?
Please contact Dr. Frese's office for information regarding telehealth appointment availability or for scheduling assistance.
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