GO
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Ortiz San Juan, Gastroenterologist in Dublin, OH?
Dr. Guillermo Ortiz San Juan, MD is a Gastroenterologist, who primarily practices in Dublin, OH with 2 additional practice locations. Dr. Ortiz San Juan graduated from Universidad Panamericana Escuela de Medicina. Dr. Ortiz San Juan is fluent in English and Spanish, and is currently seeing new patients. Dr. Ortiz San Juan’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ortiz San Juan’s office at (614) 293-1456.
Where did Dr. Ortiz San Juan go to medical school and complete their residency?
Medical School: Universidad Panamericana Escuela de Medicina
What languages does Dr. Ortiz San Juan speak?
Dr. Ortiz San Juan and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does a Gastroenterologist like Dr. Ortiz San Juan typically treat?
As a Gastroenterologist, Dr. Ortiz San Juan 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. Ortiz San Juan. 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:
- Chronic Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Chronic gastritis
- Long-term stomach inflammation
- Persistent stomach lining inflammation
ICD-10 Codes:
- K2950: Unspecified chronic gastritis without bleeding
Also known as:
- Other Esophagus Condition
- Esophagus Disorder
- Various esophageal diseases
- Miscellaneous esophagus problems
- Other food pipe issues
ICD-10 Codes:
- K2289: Other specified disease of esophagus
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)
- Gastrointestinal Bleeding
- Melena
- Black Stools
- Upper GI Bleed Signs
ICD-10 Codes:
- K921: Melena
What procedures does a Gastroenterologist like Dr. Ortiz San Juan typically perform?
As a Gastroenterologist, Dr. Ortiz San Juan 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. Ortiz San Juan. 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:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Tissue Removal
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Flexible colonoscopy with EMR
- Endoscopic mucosal resection (colon)
- Colon polyp removal during colonoscopy
CPT Codes:
- 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
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45390: Colonoscopy, flexible; with endoscopic mucosal resection
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:
- Diagnostic Upper Endoscopy with Biopsy
- EGD with Esophageal Balloon Dilation
- Colonoscopy with Injections
- Colonoscopy
- Colorectal Cancer Screening Tests
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
CPT Codes:
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 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
Does Dr. Ortiz San Juan accept my insurance?
Dr. Ortiz San Juan accepts most major insurance plans. Important: Please call our office at (614) 293-1456 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Ortiz San Juan accept in Dublin, OH?
Dr. Ortiz San Juan in Dublin, OH accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
CareSource
Centene Corporation
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Humana
Medicare
Molina Healthcare
State of Ohio
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Ortiz San Juan's office located?
Dr. Guillermo Ortiz San Juan's Primary Practice
6700 University Blvd
Dublin, OH 43016
(614) 293-1456
What is Dr. Ortiz San Juan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Ortiz San Juan's National Provider Identifier (NPI) number is 1083098784.
What common questions do patients ask about Dr. Ortiz San Juan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ortiz San Juan
What is Dr. Guillermo Ortiz San Juan's specialty?
Dr. Ortiz San Juan is a Gastroenterologist near Dublin, OH.
What does a Gastroenterologist do?
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.
Is this Dr. Guillermo Ortiz San Juan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Ortiz San Juan is affiliated with The Ohio State University Wexner Medical Center, Ohio State The James Cancer Hospital, Mount Carmel East 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
When to see a Gastroenterologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Gastroenterologist. 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 Guillermo Ortiz San Juan accepting new patients in Dublin, OH?
Yes, Dr. Guillermo Ortiz San Juan is accepting new patients at this time.
Does Dr. Guillermo Ortiz San Juan offer online booking?
Please contact Dr. Ortiz San Juan's office at (614) 293-1456 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Guillermo Ortiz San Juan?
Please contact Dr. Ortiz San Juan's office at (614) 293-1456 for information regarding telehealth appointment availability or for scheduling assistance.
Other Gastroenterologist Near Dublin, OH
LS
Gastroenterologist
Dr. Lindsay Sobotka, DO is a Gastroenterologist, who primarily practices in Dublin, OH with 2 additional practice locations.
Dublin, OH
SP
Gastroenterologist
Dr. Sheryl Pfeil, MD is a Gastroenterologist, who primarily practices in Columbus, OH with 2 additional practice locations. She has been practicing for over 35 years and is board certified.
Columbus, OH

Gastroenterologist
Dr. William Emlich, DO is a Gastroenterologist, who primarily practices in Ontario, OH with 2 additional practice locations. He has been practicing for over 33 years.
Ontario, OH