Affiliated with a Castle Connolly Top Hospital
Who is Dr. Seo, Emergency Medicine Specialist in New Haven, CT?
What languages does Dr. Seo speak?
Dr. Seo and their clinical team can communicate with patients in the following languages:
- English
What conditions does an Emergency Medicine Specialist like Dr. Seo typically treat?
As an Emergency Medicine Specialist, Dr. Seo 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. Seo. 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:
- Common Cold
- Upper Respiratory Infection
- Head Cold
- Cold Symptoms
ICD-10 Codes:
- J069: Acute upper respiratory infection, unspecified
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
Also known as:
- Urinary Tract Infection
- UTI
- Bladder infection
- Kidney infection
- Urine infection
ICD-10 Codes:
- N390: Urinary tract infection, site not specified
Also known as:
- Dizziness
- Dizziness and Vertigo
- Lightheadedness
- Giddiness
- Vertigo
ICD-10 Codes:
- R42: Dizziness and giddiness
Also known as:
- Headache
- Head pain
- Cephalalgia
- Tension headache
ICD-10 Codes:
- R519: Headache, unspecified
Also known as:
- Fainting
- Syncope
- Passing out
- Collapse
ICD-10 Codes:
- R55: Syncope and collapse
Also known as:
- Alcohol Abuse with Intoxication
- Alcohol Use Disorder (AUD)
- Alcohol use disorder
- Problem drinking with intoxication
- Alcohol poisoning
- Acute alcohol intoxication
ICD-10 Codes:
- F10129: Alcohol abuse with intoxication, unspecified
Also known as:
- Viral Intestinal Infection
- Gastroenteritis
- Viral Infection
- Viral Gastroenteritis (Stomach Flu)
- Viral stomach flu
- Viral enteritis
- Viral gut infection
ICD-10 Codes:
- A084: Viral intestinal infection, unspecified
Also known as:
- COVID-19
- COVID-19 (Coronavirus Disease 2019)
- Coronavirus Disease 2019
- SARS-CoV-2 Infection
- Novel Coronavirus
ICD-10 Codes:
- U071: COVID-19
What procedures does an Emergency Medicine Specialist like Dr. Seo typically perform?
As an Emergency Medicine Specialist, procedures performed by Dr. Lonnie Seo may include:
- Emergency Consultation
- Emergency Follow Up
- Emergency Medicine Consultation
- Removal of Foreign Object from Body
- Urgent Care Consultation
- Urgent Care Follow Up
Please contact Dr. Seo's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Seo accept my insurance?
Dr. Seo accepts most major insurance plans. Important: Please call our office at (203) 737-2644 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Seo accept in New Haven, CT?
Dr. Seo in New Haven, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Cigna Group
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Healthfirst New York
Medicare
Service Employees International Union (SEIU)
State of Connecticut
UMR Administered Payer
UnitedHealth Group
View All Insurances
Where is Dr. Seo's office located?
Dr. Lonnie Seo's Primary Practice
464 Congress Ave Ste 260
New Haven, CT 06519
(203) 737-2644
What hospitals are Dr. Seo affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Seo has admitting privileges at the following hospitals:
What is Dr. Seo's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Seo's National Provider Identifier (NPI) number is 1740785211.
What common questions do patients ask about Dr. Seo?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Seo

