Dr. Leo Hsu
- Gender: Male
- Experience: 18 years
- Graduated from: Saint Louis University School Of Medicine
- Graduation year: 2003
- Sole propriator: No
- NPI: 1215965702
Dr. Leo Hsu MD
Emergency Physician
He is located at 2 Progress Point Court in O Fallon, MO 63368. Can help patients with the following: Angina, Fever, Frostbite, General Care, Hematoma, Migraine. His National Provider Identifier (NPI) number is 1215965702. Appointment can be made via the phone number (636) 344-1151. He is affiliated with 2 hospitals.
Conditions treated
Dr. Leo Hsu Md, being an emergency physician, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Leo Hsu.
- Acute Pain
- Altitude Sickness
- Angina
- Brain Aneurysm
- Brain Hemorrhage
- Broken Bone
- Bruises
- Choking
- Common Cold
- Coronavirus
- Costochondritis
- Febrile Seizure
- Fever
- Frostbite
- General Care
- Headache
- Hematoma
- Influenza
- Insect Stings
- Laceration
- Migraine
- Nausea and Vomiting
- Phlebitis and Thrombophlebitis
- Whiplash
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Leo Hsu as in-network for the following 2026 plans.
Health plans
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 11 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic 4700 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Classic Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver Plus | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Diabetes | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic Standard | EPO · Gold | Preferred | Accepting new patients |
| Gold Simple | EPO · Gold | Preferred | Accepting new patients |
| Silver Classic Standard | EPO · Silver | Preferred | Accepting new patients |
| Silver Elite Saver Plus | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Diabetes | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple Women's Health with Menopause Benefits | EPO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Leo Hsu is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Leo Hsu is enrolled to bill Medicare as a Practitioner - Emergency Medicine .
Bills through: Southeastern Emergency Physicians Of Memphis Llc
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Boehringer Ingelheim | $29 |
| Janssen | $12 |
Other
| Food and Beverage | $42 |
Studies
SAINT LOUIS UNIVERSITY SCHOOL OF MEDICINE
Graduated in 2003
Looking for more Emergency Physicians?
There are 9 other emergency physicians in this region.
- Gender: Male
- Address: 2630 Highway K O Fallon, 63368, MO
- Gender: Female
- Address: 7909 Highway North Dardenne Prairie, 63368, MO
- Gender: Male
- Address: Progress West Health Center 2 Progress Point Court O Fallon, 63368, MO
- Gender: Female
- Address: 201 Bjc Saint Peters Drive Suite 200 Saint Peters, 63376, MO
- Gender: Female
- Address: Progress West Health Care Center Attn Er 2 Progress Point Parkway O Fallon, 63368, MO
- Gender: Male
- Address: Dept Emergency Med 10 Hospital Drive Saint Peters, 63376, MO
- Gender: Female
- Address: 2 Progress Point Court O Fallon, 63368, MO
- Gender: Female
- Address: 2630 Highway K O Fallon, 63368, MO
- Gender: Male
- Address: 2630 Highway K O'Fallon, 63368, MO
Questions & Answers
Does Dr. Leo Hsu Md accept insurance?
Dr. Leo Hsu Md is listed in-network for 11 ACA Marketplace (Obamacare/HealthCare.gov) plans from Oscar Insurance Company. See the Marketplace plans section for details.
What conditions does Dr. Leo Hsu Md treat?
Dr. Leo Hsu Md provides treatment for Angina, Fever, Frostbite, General Care, Hematoma, Migraine. For the full list see this list.
Where can you meet with Dr. Leo Hsu Md?
Dr. Leo Hsu Md's office is located at 2 Progress Point Court in O Fallon, MO 63368.
Has Dr. Leo Hsu Md affiliation with hospitals?
Dr. Leo Hsu Md is affiliated with PROGRESS WEST HOSPITAL. For the full list of hospitals see this list.