Theresa Ong Liu Dumlao, MD
Theresa Ong Liu Dumlao is a Hematology & Oncology specialist based in Gilbert, AZ with over 33 years of clinical experience. Offers virtual telehealth visits.
Theresa Ong Liu Dumlao, MD has been part of the Gilbert medical community since 2008 in group practice. She has been in practice for 33+ years. She regularly sees Medicare patients with cancer, high cholesterol, and hypertension (per CMS claims data).
Older · 286dNPPES updated 2025-08-11 · verify NPI on CMS · Verify license at Arizona Medical Board
Contact & Location
Practice Location
2946 E Banner Gateway Dr Suite 450, Gilbert, AZ 85234-2165
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Cancer, High Cholesterol, and Hypertension.
Diseases involving abnormal cell growth with potential to spread to other body parts
Elevated cholesterol or triglycerides that increase heart disease risk
High blood pressure — a leading risk factor for heart disease and stroke
Joint inflammation causing pain, swelling, and stiffness
Conditions affecting emotional state, including depression and bipolar disorder
Excessive worry or fear that interferes with daily life
A condition where the body cannot properly regulate blood sugar levels
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
33 years in practice
Senior practitioner
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Taxonomy: 207RH0003X
Mailing address
2940 E. Banner Gateway Dr Suite 450, Gilbert, AZ 85234-2165
Differs from practice location
Virtual Hematology & Oncology Care With Theresa Ong Liu Dumlao
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Theresa Ong Liu Dumlao for follow-up consultations, cholesterol management, blood pressure monitoring — no travel to Gilbert required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about Theresa Ong Liu Dumlao
Dr. Liu Dumlao is listed as active in the NPI registry with telehealth listed in Gilbert, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (480) 256-6444.
Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. See Data Methodology.
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Contact Theresa Ong Liu Dumlao
Practice Location
2946 E Banner Gateway Dr Suite 450, Gilbert, AZ 85234-2165
Mailing Address
2940 E. Banner Gateway Dr Suite 450, Gilbert, AZ 85234-2165
This is a provider directory. Contact the office directly to schedule appointments.
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