VT
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Tatsis, Obstetrician / Gynecologist (OBGYN) in Fullerton, CA?
Dr. Vasiliki Tatsis, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Fullerton, CA with 1 additional practice location. She is board certified. Dr. Tatsis is fluent in English and Greek, Modern (1453-), and is currently seeing new patients. Dr. Tatsis’s practice accepts Kaiser Permanente and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Tatsis’s office at (714) 973-2825.
Is Dr. Tatsis board certified as an Obstetrician / Gynecologist (OBGYN)?
Yes, Dr. Vasiliki Tatsis, MD is board certified by the American Board of Obstetrics and Gynecology
What languages does Dr. Tatsis speak?
Dr. Tatsis and their clinical team can communicate with patients in the following languages:
English
Greek, Modern (1453-)
What conditions does an Obstetrician / Gynecologist (OBGYN) like Dr. Tatsis typically treat?
As an Obstetrician / Gynecologist (OBGYN), Dr. Tatsis 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. Tatsis. 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:
- Breech Presentation
- Childbirth Problems
- Baby is Breech
- Feet First Birth
- Bottom First Birth
ICD-10 Codes:
- O321XX0: Maternal care for breech presentation, not applicable or unspecified
Also known as:
- Abnormal Fetal Heart Rate During Childbirth
- Childbirth Problems
- Fetal heart rate abnormality in labor
- Irregular baby heartbeat during delivery
- Fetal distress due to heart rate
ICD-10 Codes:
- O76: Abnormality in fetal heart rate and rhythm complicating labor and delivery
Also known as:
- Severe Preeclampsia After Childbirth
- High Blood Pressure in Pregnancy
- Preeclampsia
- Postpartum Severe Preeclampsia
- Advanced Preeclampsia Post-Delivery
- High-Risk Preeclampsia After Birth
ICD-10 Codes:
- O1415: Severe pre-eclampsia, complicating the puerperium
Also known as:
- Fetal Heart Rate Problems
- Irregular Fetal Heartbeat
- Fetal Arrhythmia
- Abnormal Fetal Heart Rhythm
ICD-10 Codes:
- O368330: Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, not applicable or unspecified
Also known as:
- Low Transverse C-section Scar in Pregnancy
- Prenatal Care
- Horizontal C-section Scar (Pregnancy)
- Low-lying C-section Scar
- Prior Cesarean Scar (Low Transverse)
ICD-10 Codes:
- O34211: Maternal care for low transverse scar from previous cesarean delivery
What procedures does an Obstetrician / Gynecologist (OBGYN) like Dr. Tatsis typically perform?
As an Obstetrician / Gynecologist (OBGYN), Dr. Tatsis 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. Tatsis. 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:
- 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. Tatsis accept my insurance?
Dr. Tatsis accepts most major insurance plans. Important: Please call our office at (714) 973-2825 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Tatsis accept in Fullerton, CA?
Dr. Tatsis in Fullerton, 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
Centene Corporation
Community Health Network of Washington
Conifer Health Solutions
Health Plan of San Joaquin
Hill Physicians Medical Group
Other Health Care Provider
State of California
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Tatsis' office located?
Dr. Vasiliki Tatsis' Primary Practice
2262 N State College Blvd
Fullerton, CA 92831
(714) 973-2825
What is Dr. Tatsis's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Tatsis's National Provider Identifier (NPI) number is 1013114719.
What common questions do patients ask about Dr. Tatsis?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Tatsis
What is Dr. Vasiliki Tatsis's specialty?
Dr. Tatsis is a Obstetrician / Gynecologist (OBGYN) near Fullerton, 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. Vasiliki Tatsis affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Tatsis is affiliated with Ucsf Medical Center At Parnassus which is a Castle Connolly Top Hospital. 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 Vasiliki Tatsis accepting new patients in Fullerton, CA?
Yes, Dr. Vasiliki Tatsis is accepting new patients at this time.
Does Dr. Vasiliki Tatsis offer online booking?
Please contact Dr. Tatsis's office at (714) 973-2825 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Vasiliki Tatsis?
Please contact Dr. Tatsis's office at (714) 973-2825 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Vasiliki Tatsis have?
Dr. Vasiliki Tatsis is certified by the American Board of Obstetrics and Gynecology.
Other Obstetrician / Gynecologist (OBGYN) Near Fullerton, CA
JT
Obstetrician / Gynecologist (OBGYN)
Dr. Jerald Thanos, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Fullerton, CA. He has been practicing for over 43 years.
Fullerton, CA

Obstetrician / Gynecologist (OBGYN)
Dr. Nicholas Thanos, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Fullerton, CA. He has been practicing for over 43 years and is board certified.
Fullerton, CA
TF
Dr. Theresa Franks, MD is an Obstetrician / Gynecologist (OBGYN), who primarily practices in Fullerton, CA with 2 additional practice locations. She is board certified.
Fullerton, CA