Physician Profile
Unclaimed ProfileAbout CHOI
John Chuwon Choi, M.D. practises ophthalmology in Warrenville, IL. John is a 1990 graduate of Harvard Medical School.
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
Common questions
What is Dr. Choi's specialty?
Dr. Choi is an ophthalmology in Warrenville, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where can I find Dr. Choi?
Dr. Choi is listed at 28375 DAVIS PKWY SUITE 905, Warrenville, IL 60555. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Choi?
The number on file is (630) 836-1616. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Choi's NPI number?
Dr. Choi's National Provider Identifier is 1699765230. 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
What is Dr. Choi's medical education?
Dr. Choi attended Harvard Medical School, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Choi been practising?
Dr. Choi has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Choi known for?
According to Medicare billing data, Dr. Choi performs procedures including probing of nasal tear duct, closure of tear duct opening using plug and removal of eyelashes using forceps; provides treatments such as photography of content of eyes and photography of the retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Choi confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Choi. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (630) 836-1616
- Email not available
Practice Locations
28375 DAVIS PKWY SUITE 905
Warrenville, IL 60555
Procedures Most Often Billed to Medicare
1,592 services · 950 patients · 16 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Probing of nasal tear duct | Procedure | 68840 |
131 |
| Closure of tear duct opening using plug | Procedure | 68761 |
105 |
| Removal of eyelashes using forceps | Procedure | 67820 |
32 |
| Injection of chemical for paralysis of nerve muscles on side of face | Procedure | 64612 |
30 |
| Removal of growth of eyelid | Procedure | 67840 |
23 |
| Repair tear duct opening by heat, tying, or laser surgery | Procedure | 68760 |
15 |
| Photography of content of eyes | Treatment | 92285 |
135 |
| Photography of the retina | Treatment | 92250 |
109 |
| Imaging of retina | Treatment | 92134 |
95 |
| Exam of visual field with extended testing | Treatment | 92083 |
44 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated 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.
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Probing of nasal tear duct 8
Providers in IL who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.