TH
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Hayashi, Pediatrician in San Jose, CA?
Dr. Tomomi Hayashi, MD is a Pediatrician, who primarily practices in San Jose, CA. Dr. Hayashi is fluent in English, and is not currently seeing new patients. Dr. Hayashi’s practice accepts Kaiser Permanente and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hayashi’s office at (408) 356-9900.
What languages does Dr. Hayashi speak?
Dr. Hayashi and their clinical team can communicate with patients in the following languages:
English
What conditions does a Pediatrician like Dr. Hayashi typically treat?
As a Pediatrician, Dr. Hayashi 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. Hayashi. 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 Child Health Examination (Normal Findings)
- Health Checkup
- Normal Well-Child Checkup
- Child Physical Exam (No Issues)
- Routine Pediatric Exam (Clear)
ICD-10 Codes:
- Z00129: Encounter for routine child health examination without abnormal findings
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- Fever
- High temperature
- Pyrexia
- Elevated body temperature
ICD-10 Codes:
- R509: Fever, unspecified
Also known as:
- Common Cold
- Upper Respiratory Infection
- Head Cold
- Cold Symptoms
ICD-10 Codes:
- J069: Acute upper respiratory infection, unspecified
Also known as:
- Sore Throat
- Acute pharyngitis
- Throat inflammation
- Acute throat infection
ICD-10 Codes:
- J029: Acute pharyngitis, unspecified
Also known as:
- Cough
- Coughing
- Persistent cough
- Chronic cough
ICD-10 Codes:
- R059: Cough, unspecified
Also known as:
- Exposure to COVID-19
- COVID-19 (Coronavirus Disease 2019)
- COVID-19 contact
- Suspected coronavirus exposure
- SARS-CoV-2 exposure
ICD-10 Codes:
- Z20822: Contact with and (suspected) exposure to COVID-19
Also known as:
- Failure to Thrive in Children
- Growth Disorder
- Poor growth in children
- Childhood growth problems
- Infant growth failure
ICD-10 Codes:
- R6251: Failure to thrive (child)
What procedures does a Pediatrician like Dr. Hayashi typically perform?
As a Pediatrician, procedures performed by Dr. Tomomi Hayashi may include:
- 12 Month Well-Baby Checkup
- 15 Month Well-Baby Checkup
- 18 Month Well-Baby Checkup
- 1 Month Well-Baby Checkup
- 24 Month Well-Baby Checkup
- 2 Month Well-Baby Checkup
- 2 Week Well Baby Checkup
- 30 Month Well-Baby Checkup
Please contact Dr. Hayashi's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Hayashi accept my insurance?
Dr. Hayashi accepts most major insurance plans. Important: Please call our office at (408) 356-9900 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Hayashi accept in San Jose, CA?
Dr. Hayashi in San Jose, 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)
Federal government of the United States
Other Health Care Provider
Other Provider Networks
UMR Administered Payer
UnitedHealth Group
View All Insurances
Where is Dr. Hayashi's office located?
Dr. Tomomi Hayashi's Primary Practice
2505 Samaritan Dr Ste 607
San Jose, CA 95124
(408) 356-9900
What is Dr. Hayashi's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Hayashi's National Provider Identifier (NPI) number is 1962822114.
What common questions do patients ask about Dr. Hayashi?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Hayashi
What is Dr. Tomomi Hayashi's specialty?
Dr. Hayashi is a Pediatrician near San Jose, CA.
What does a Pediatrician do?
A pediatrician focuses on the physical, emotional, and social health of children from birth through young adulthood. Their care includes a wide range of health services, from preventive healthcare to diagnosing and treating acute and chronic diseases. Pediatricians consider the biological, social, and environmental influences on a child's development, as well as how diseases and dysfunctions can impact growth and overall development.
Is this Dr. Tomomi Hayashi affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Hayashi is affiliated with Stanford Health Care - Stanford Hospital 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 a Pediatrician?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Pediatrician. 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 Tomomi Hayashi accepting new patients in San Jose, CA?
No, Dr. Tomomi Hayashi is not accepting new patients at this time.
Does Dr. Tomomi Hayashi offer online booking?
Please contact Dr. Hayashi's office at (408) 356-9900 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Tomomi Hayashi?
Please contact Dr. Hayashi's office at (408) 356-9900 for information regarding telehealth appointment availability or for scheduling assistance.
Other Pediatrician Near San Jose, CA
LF
Pediatrician
Dr. Lauren Farash, MD is a Pediatrician, who primarily practices in Pleasanton, CA with 2 additional practice locations. She is board certified.
Pleasanton, CA

Pediatrician
Dr. Latha Vrittamani, MD is a Pediatrician, who primarily practices in San Jose, CA with 1 additional practice location. She is board certified.
San Jose, CA

Pediatrician
Dr. Jacqueline Chak, MD is a Pediatrician, who primarily practices in San Jose, CA with 2 additional practice locations. She is board certified.
San Jose, CA