49 Years of Experience
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Ma, Gastroenterologist in Riverside, CA?
Where did Dr. Ma go to medical school and complete their residency?
Residency: Univ Ca Irvine Med Ctr, Gastroenterology; Vet Affairs Med Ctr, Internal Medicine | University Ca Irvine Med Center
Medical School: VA Commonwealth University School Of Medicine | Virginia Commonwealth University, School of Medicine, Richmond
Is Dr. Ma board certified as a Gastroenterologist?
Yes, Dr. James Ma, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Ma speak?
Dr. Ma and their clinical team can communicate with patients in the following languages:
- English
- Spanish
- Vietnamese
What conditions does a Gastroenterologist like Dr. Ma typically treat?
As a Gastroenterologist, Dr. Ma 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. Ma. 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:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R109: Unspecified 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
What procedures does a Gastroenterologist like Dr. Ma typically perform?
As a Gastroenterologist, Dr. Ma 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. Ma. 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:
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
CPT Codes:
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 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
Also known as:
- Diagnostic Upper Endoscopy with Biopsy
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
CPT Codes:
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
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
Does Dr. Ma accept my insurance?
Dr. Ma accepts most major insurance plans. Important: Please call our office at (909) 353-2000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Ma accept in Riverside, CA?
Dr. Ma in Riverside, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alignment Healthcare
AlphaCare
Centene Corporation
CVS Health (formerly Aetna)
Heritage Health
Kaiser Permanente
Medicare
Other Health Care Provider
UnitedHealth Group
View All Insurances
Where is Dr. Ma's office located?
What hospitals are Dr. Ma affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Ma has admitting privileges at the following hospitals:
Ranked Cancer Surgery
Ranked Mastectomy
What is Dr. Ma's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Ma's National Provider Identifier (NPI) number is 1295802007.
What common questions do patients ask about Dr. Ma?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ma