Physician Profile
Unclaimed ProfileAbout CHI
Stephen Wen-Yan Chi, MD practices pulmonary disease in Saint Louis, MO. Stephen is a 2015 graduate of Washington University School of Medicine. Stephen is also listed as specializing in anesthesiology — critical care, internal medicine, and hospice & palliative medicine. Medicare claims data shows Stephen provided 226 services to 119 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (314) 454-8762
- Email not available
Practice Locations
1 BARNES JEWISH HOSPITAL PLZ DIV IM PULMONARY
Saint Louis, MO 63110
Procedures Most Often Billed to Medicare
226 services · 119 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
13 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
172 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
28 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pulmonary diseases in Saint Louis 8
Same specialty, same city.
Trained at Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2015 at Washington University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of non-tunneled central venous tube for infusion (5 years or older) 8
Providers in MO who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Chi?
Dr. Chi is a pulmonary disease in Saint Louis, MO. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PULMONARY DISEASE”.
NPI registry
What is Dr. Chi's address?
Dr. Chi is listed at 1 BARNES JEWISH HOSPITAL PLZ DIV IM PULMONARY, Saint Louis, MO 63110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Chi?
The number on file is (314) 454-8762. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Chi?
Dr. Chi's National Provider Identifier is 1396126553. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Chi train?
Dr. Chi attended Washington University School of Medicine, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chi have?
Dr. Chi has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Chi perform?
According to Medicare billing data, Dr. Chi performs procedures including insertion of non-tunneled central venous tube for infusion, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Chi's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chi. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.