
22 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Chao, Obstetrician / Gynecologist (OBGYN) in Los Alamitos, CA?
Dr. Cynthia Chao, DO is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Los Alamitos, CA with 2 additional practice locations. She has been practicing for over 22 years. Dr. Chao completed her residency at St Francis Hosp Of Evanston, Obstetrics And Gynecology; Kern Med Ctr, Obstetrics And Gynecology. She is a member of the MemorialCare Physician Society and American Osteopathic Association, DO. Dr. Chao is fluent in English and Chinese, and is currently seeing new patients. Dr. Chao’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chao’s office at (562) 931-3137.
Where did Dr. Chao go to medical school and complete their residency?
Residency: St Francis Hosp Of Evanston, Obstetrics And Gynecology; Kern Med Ctr, Obstetrics And Gynecology | St. Francis Hospital
What languages does Dr. Chao speak?
Dr. Chao and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does an Obstetrician / Gynecologist (OBGYN) like Dr. Chao typically treat?
As an Obstetrician / Gynecologist (OBGYN), Dr. Chao 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. Chao. 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:
- Routine Gynecological Exam (Normal Findings)
- Routine Gynecological Exam (Abnormal Findings)
- Women's Health Checkup
- Women's checkup, all clear
- Pelvic exam, normal results
- OB/GYN visit, no issues
- Women's checkup with issues
- Pelvic exam, abnormal results
- OB/GYN visit with concerns
ICD-10 Codes:
- Z01419: Encounter for gynecological examination (general) (routine) without abnormal findings
- Z01411: Encounter for gynecological examination (general) (routine) with abnormal findings
Also known as:
- Human Papillomavirus (HPV) Test
- HPV screening
- Papillomavirus test
- Cervical cancer screening
ICD-10 Codes:
- Z1151: Encounter for screening for human papillomavirus (HPV)
Also known as:
- Uncomplicated Childbirth
- Childbirth
- Normal Delivery
- Natural Birth
- Vaginal Delivery
ICD-10 Codes:
- O80: Encounter for full-term uncomplicated delivery
Also known as:
- Heavy and Frequent Periods (Regular Cycle)
- Menstruation
- Menorrhagia
- Polymenorrhea
- Abnormal Uterine Bleeding
ICD-10 Codes:
- N920: Excessive and frequent menstruation with regular cycle
Also known as:
- Prenatal Care for Normal Pregnancy
- Prenatal Care
- Routine Pregnancy Check-ups
- Maternity Care
- Normal Pregnancy Supervision
ICD-10 Codes:
- Z3490: Encounter for supervision of normal pregnancy, unspecified, unspecified trimester
Also known as:
- Cervical Cancer Screening
- HPV and Pap Test Results
- Pap Test
- HPV Test
- Cervical Smear
- Early Cervical Cancer Detection
ICD-10 Codes:
- Z124: Encounter for screening for malignant neoplasm of cervix
Also known as:
- Abnormal Uterine and Vaginal Bleeding
- Vaginal Bleeding
- Unusual Uterine Bleeding
- Abnormal Vaginal Discharge
- AUB
- Irregular Genital Bleeding
ICD-10 Codes:
- N939: Abnormal uterine and vaginal bleeding, unspecified
What procedures does an Obstetrician / Gynecologist (OBGYN) like Dr. Chao typically perform?
As an Obstetrician / Gynecologist (OBGYN), Dr. Chao 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. Chao. 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:
- Hysteroscopy with Biopsy or Polyp Removal
- Biopsy
- Hysteroscopy
- Uterine Scope with Biopsy
- Hysteroscopic Polypectomy
- D&C with Hysteroscopy
CPT Codes:
- 58558: Hysteroscopy, surgical; with sampling (biopsy) of endometrium and/or polypectomy, with or without D & C
Also known as:
- Pessary Insertion
- Vaginal Pessary Placement
- Intravaginal Support Device Fitting
- Pelvic Organ Prolapse Device
CPT Codes:
- 57160: Fitting and insertion of pessary or other intravaginal support device
Also known as:
- Uterine Lining Biopsy
- Biopsy
- Endometrial Biopsy
- Uterine Biopsy
- Cervical Biopsy
- Endocervical Sampling
CPT Codes:
- 58100: Endometrial sampling (biopsy) with or without endocervical sampling (biopsy), without cervical dilation, any method (separate procedure)
Also known as:
- IUD Insertion
- Birth Control
- Intrauterine device placement
- IUD placement
- Birth control implant
CPT Codes:
- 58300: Insertion of intrauterine device (IUD)
Also known as:
- IUD Removal
- Birth Control
- Intrauterine device removal
- Take out IUD
- Remove birth control device
- IUD explant
CPT Codes:
- 58301: Removal of intrauterine device (IUD)
Also known as:
- Colposcopy with Cervical Biopsy and Curettage
- Colposcopy
- Cervical Biopsy
- Endocervical Curettage
- Pap Smear Follow-up Procedure
CPT Codes:
- 57454: Colposcopy of the cervix including upper/adjacent vagina; with biopsy(s) of the cervix and endocervical curettage
Also known as:
- Fetal Non-Stress Test
- Nonstress Test
- Nonstress Test (NST)
- Fetal Heart Rate Monitoring
- NST for Pregnancy
- Baby Heartbeat Test
CPT Codes:
- 59025: Fetal non-stress test
Does Dr. Chao accept my insurance?
Dr. Chao accepts most major insurance plans. Important: Please call our office at (562) 931-3137 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Chao accept in Los Alamitos, CA?
Dr. Chao in Los Alamitos, 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
American Healthcare
Centene Corporation
City of Los Angeles
MHH Healthcare
Other Health Care Provider
Other Provider Networks
Preferred IPA
State of California
Unknown
View All Insurances
Where is Dr. Chao's office located?
Dr. Cynthia Chao's Primary Practice
10861 Cherry St Ste 109
Los Alamitos, CA 90720
(562) 931-3137
Recognitions
Memberships & Associations
MemorialCare Physician Society
Member
American Osteopathic Association, DO
Member
What is Dr. Chao's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Chao's National Provider Identifier (NPI) number is 1720077274.
What common questions do patients ask about Dr. Chao?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Chao
What is Dr. Cynthia Chao's specialty?
Dr. Chao is a Obstetrician / Gynecologist (OBGYN) near Los Alamitos, CA.
What does an Obstetrician / Gynecologist (OBGYN) do?
An obstetrician/gynecologist has specialized knowledge, skills, and expertise in the medical and surgical management of the female reproductive system and related disorders. This physician acts as a consultant to other healthcare providers while also serving as a primary care physician for women, addressing their unique health needs throughout various stages of life.
Is this Dr. Cynthia Chao affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Chao is affiliated with Dignity Health - St. Mary Medical Center, Uci Medical Center, Los Angeles General Medical Center 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 an Obstetrician / Gynecologist (OBGYN)?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Obstetrician / Gynecologist (OBGYN). 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 Cynthia Chao accepting new patients in Los Alamitos, CA?
Yes, Dr. Cynthia Chao is accepting new patients at this time.
Does Dr. Cynthia Chao offer online booking?
Please contact Dr. Chao's office at (562) 931-3137 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Cynthia Chao?
Please contact Dr. Chao's office at (562) 931-3137 for information regarding telehealth appointment availability or for scheduling assistance.
Other Obstetrician / Gynecologist (OBGYN) Near Los Alamitos, CA

Obstetrician / Gynecologist (OBGYN)
Dr. Karen Koe, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Los Alamitos, CA with 1 additional practice location. She has been practicing for over 33 years and is board certified.
Los Alamitos, CA
GH
Gynecologist
Dr. Gretchen Hetzler, MD is a Gynecologist, who primarily practices in Los Alamitos, CA. She is board certified.
Los Alamitos, CA

Obstetrician / Gynecologist (OBGYN)
Dr. Joel Kizner, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Los Alamitos, CA. He has been practicing for over 40 years and is board certified.
Los Alamitos, CA