49 Years of Experience
Accepting patients
Who is Dr. Ma, Gastroenterologist in Riverside, CA?
Dr. James Ma, MD is a Gastroenterologist, who primarily practices in Riverside, CA with 2 additional practice locations. He has been practicing for over 49 years and is board certified by the American Board of Internal Medicine. Dr. Ma graduated from Virginia Commonwealth University, School of Medicine, Richmond and completed his residency at Univ Ca Irvine Med Ctr, Gastroenterology; Vet Affairs Med Ctr, Internal Medicine. Dr. Ma is fluent in English, Spanish, and Vietnamese, and is currently seeing new patients. Dr. Ma’s practice accepts Kaiser Permanente, Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ma’s office at (909) 353-2000.
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 in 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 Dr. Ma 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.
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:
- Abdominal Pain
- Upper Middle Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R109: Unspecified abdominal pain
- R1013: Epigastric pain
Also known as:
- Pre-Procedure Lab Tests
- Other Pre-Procedure Examination
- Pre-op blood work
- Lab tests before surgery
- Pre-treatment lab assessment
- Various pre-op checks
- Miscellaneous pre-surgery exams
- Other pre-treatment assessments
ICD-10 Codes:
- Z01812: Encounter for preprocedural laboratory examination
- Z01818: Encounter for other preprocedural examination
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
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:
- Rectal Bleeding
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
ICD-10 Codes:
- K625: Hemorrhage of anus and rectum
Also known as:
- Bile Duct Stones
- Gallstones
- Choledocholithiasis
- Biliary duct calculi
ICD-10 Codes:
- K8050: Calculus of bile duct without cholangitis or cholecystitis without obstruction
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Fluid in Abdomen
- Liver Disease
- Ascites
- Abdominal fluid buildup
- Peritoneal fluid
ICD-10 Codes:
- R188: Other ascites
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:
- Change in Bowel Habits
- Bowel Movement
- Altered Bowel Habits
- Irregular Bowel Movements
- Changes in Pooping
ICD-10 Codes:
- R194: Change in bowel habit
Which procedures does Dr. Ma perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. James Ma 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. Ma's office.
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 Health Plan
All Other Third Party
Apex Healthcare
Department of Defense / Tricare
Express Scripts
Inland Empire
Kaiser Permanente
Medicaid
Medicare
Other Health Care Provider
View All Insurances
Where is Dr. Ma's office located?
What is Dr. Ma's NPI number?An 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
What is Dr. James Ma's specialty?
Dr. Ma is a Gastroenterologist near Riverside, 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. Ma to book an appointment today.
Is this Dr. James Ma affiliated with a ranked Castle Connolly Top Hospital?
No, Ma is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Kaiser Permanente - Riverside Medical Center. 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 James Ma accepting new patients in Riverside, CA?
Yes, Dr. James Ma is accepting new patients at this time.
Does Dr. James Ma offer online booking?
Please contact Dr. Ma's office at (909) 353-2000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with James Ma?
Please contact Dr. Ma's office at (909) 353-2000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. James Ma have?
Dr. James Ma is certified by the American Board of Internal Medicine.
Other Gastroenterologist Near Riverside, CA
EY
Gastroenterologist
Accepting patientsDr. Edward Yang, MD is a Gastroenterologist, who primarily practices in Riverside, CA with 2 additional practice locations. He is board certified.
Riverside, CA
NN
Gastroenterologist
Accepting patientsDr. Nghia Nguyen is a Gastroenterologist, who primarily practices in Riverside, CA with 2 additional practice locations. He is board certified.
Riverside, CA
RD
Gastroenterologist
Accepting patientsDr. Rodrigo Duarte Chavez, MD is a Gastroenterologist, who primarily practices in Riverside, CA with 2 additional practice locations. He is board certified.
Riverside, CA