
Accepting patients
Who is Dr. Yao, Specialist in Long Beach, CA?
Dr. Diana Yao, MD is a Specialist, who primarily practices in Long Beach, CA with 1 additional practice location. She is board certified. Dr. Yao graduated from Mechanical Engineering and completed her residency at Univ Ca Irvine Med Ctr, Internal Medicine. Dr. Yao is fluent in English, Spanish, and Tagalog, and is currently seeing new patients. Dr. Yao’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Yao’s office at (562) 595-5421.
Where did Dr. Yao go to medical school and complete their residency?
Fellowship: Uc Irvine
Residency: Univ Ca Irvine Med Ctr, Internal Medicine | UC Irvine Medical Center
Medical School: Mechanical Engineering
Is Dr. Yao board certified as a Specialist?
Yes, Dr. Diana Yao, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Yao speak?
Dr. Yao and their clinical team can communicate with patients in the following languages:
English
Spanish
Tagalog
What conditions does a Specialist like Dr. Yao typically treat?
As a Specialist, Dr. Yao 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. Yao. 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:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
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:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
What procedures does a Specialist like Dr. Yao typically perform?
As a Specialist, Dr. Yao 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. Yao. 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 Biopsy
- Colonoscopy with Polyp Removal
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
CPT Codes:
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
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:
- Colonoscopy with Injections
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
CPT Codes:
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
Does Dr. Yao accept my insurance?
Dr. Yao accepts most major insurance plans. Important: Please call our office at (562) 595-5421 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Yao accept in Long Beach, CA?
Dr. Yao in Long Beach, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Centene Corporation
Cigna Group
CVS Health (formerly Aetna)
Humana
Medicare
Other Health Care Provider
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Yao's office located?
Dr. Diana Yao's Primary Practice
3833 Worsham Ave Ste 300
Long Beach, CA 90808
(562) 595-5421
What is Dr. Yao's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Yao's National Provider Identifier (NPI) number is 1588678833.
What common questions do patients ask about Dr. Yao?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Yao
What is Dr. Diana Yao's specialty?
Dr. Yao is a Specialist near Long Beach, CA.
Is this Dr. Diana Yao affiliated with a ranked Castle Connolly Top Hospital?
No, Yao is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: MemorialCare Long Beach 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
When to see a Specialist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Specialist. 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 Diana Yao accepting new patients in Long Beach, CA?
Yes, Dr. Diana Yao is accepting new patients at this time.
Does Dr. Diana Yao offer online booking?
Please contact Dr. Yao's office at (562) 595-5421 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Diana Yao?
Please contact Dr. Yao's office at (562) 595-5421 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Diana Yao have?
Dr. Diana Yao is certified by the American Board of Internal Medicine.
Other Specialist Near Long Beach, CA

Specialist
Dr. Stephen Severance, MD is a Specialist, who primarily practices in Long Beach, CA. He has been practicing for over 52 years and is board certified.
Long Beach, CA

Specialist
Dr. David Drake, MD is a Specialist, who primarily practices in Long Beach, CA. He is board certified.
Long Beach, CA

Specialist
Dr. Kalpana Patel, MD is a Specialist, who primarily practices in Long Beach, CA with 1 additional practice location. She has been practicing for over 27 years and is board certified.
Long Beach, CA