Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Thomas, Gastroenterologist in San Diego, CA?
Dr. Carlton Thomas, MD is a Gastroenterologist, who primarily practices in San Diego, CA with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Thomas completed his residency at MAYO CLINIC. Dr. Thomas is fluent in English and Spanish, and is currently seeing new patients. Dr. Thomas’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Thomas’s office at (619) 266-3332.
Where did Dr. Thomas go to medical school and complete their residency?
Fellowship: MAYO CLINIC
Residency: MAYO CLINIC
Is Dr. Thomas board certified in Gastroenterologist?
Yes, Dr. Carlton Thomas, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Thomas speak?
Dr. Thomas and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Thomas treat?
As a Gastroenterologist, Dr. Thomas 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. Thomas. 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
- Intestinal 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
- Digestive Tract Cancer Screening
- GI Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
- Z1210: Encounter for screening for malignant neoplasm of intestinal tract, unspecified
Also known as:
- Upper Middle Abdominal Pain
- Widespread Abdominal Pain
- Severe Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
- General stomach pain
- Overall belly pain
- Diffuse abdominal pain
- Acute abdomen
- Sudden stomach pain
- Emergency abdominal pain
ICD-10 Codes:
- R1013: Epigastric pain
- R1084: Generalized abdominal pain
- R100: Acute abdomen
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:
- 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:
- 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:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Functional Diarrhea
- Diarrhea
- Chronic Diarrhea
- Persistent Diarrhea
- Diarrhea without clear cause
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- K591: Functional diarrhea
- R197: Diarrhea, unspecified
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:
- Fatty Liver Disease
- Liver Disease
- Nonalcoholic Fatty Liver Disease (NAFLD) & NASH
- Nonalcoholic Fatty Liver Disease & NASH in Children
- NAFLD
- NASH
- Hepatic steatosis
ICD-10 Codes:
- K760: Fatty (change of) liver, not elsewhere classified
Also known as:
- Bacterial Intestinal Infection
- Bacterial Infection
- Gastroenteritis
- Bacterial Gut Infection
- Bacterial Enteritis
- Bacterial Gastroenteritis
ICD-10 Codes:
- A048: Other specified bacterial intestinal infections
Also known as:
- Cirrhosis
- Liver scarring
- End-stage liver disease
- Chronic liver failure
ICD-10 Codes:
- K7460: Unspecified cirrhosis of liver
Also known as:
- Diaphragmatic Hernia
- Hernia
- Hiatal Hernia
- Hernia of the Diaphragm
ICD-10 Codes:
- K449: Diaphragmatic hernia without obstruction or gangrene
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:
- Large Intestine Diverticulosis
- Diverticulosis and Diverticulitis
- Diverticular Disease
- Colon Diverticula
- Pockets in the Colon
ICD-10 Codes:
- K5730: Diverticulosis of large intestine without perforation or abscess without bleeding
Which procedures does Dr. Thomas perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Carlton Thomas 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. Thomas' office.
Does Dr. Thomas accept my insurance?
Dr. Thomas accepts most major insurance plans. Important: Please call our office at (619) 266-3332 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Thomas accept in San Diego, CA?
Dr. Thomas in San Diego, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alignment Health Plan
All Other Third Party
Blue Shield of California
Community Health Group
Elevance Health Inc. (formerly Anthem)
Medicare
Molina
Other Health Care Provider
Other Support Agencies/Consultants
UnitedHealthcare
View All Insurances
Where is Dr. Thomas' office located?
What is Dr. Thomas's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Thomas's National Provider Identifier (NPI) number is 1205881398.
What common questions do patients ask about Dr. Thomas?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Thomas
What is Dr. Carlton Thomas's specialty?
Dr. Thomas is a Gastroenterologist near San Diego, CA. 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. Thomas to book an appointment today.
Is this Dr. Carlton Thomas affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Thomas is affiliated with Scripps Mercy Hospital San Diego 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 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 Carlton Thomas accepting new patients in San Diego, CA?
Yes, Dr. Carlton Thomas is accepting new patients at this time.
Does Dr. Carlton Thomas offer online booking?
Please contact Dr. Thomas's office at (619) 266-3332 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Carlton Thomas?
Please contact Dr. Thomas's office at (619) 266-3332 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Carlton Thomas have?
Dr. Carlton Thomas is certified by the American Board of Internal Medicine.
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