Physician Profile
Unclaimed ProfileAbout CHOI
Based in Sun Valley, CA, Joon Choi, MD is listed in the NPI registry under obstetrics/gynecology. Joon graduated from Medical College of Ohio in 1991. Joon is also listed as specializing in obstetrics & gynecology. According to Medicare claims data, Joon cared for 75 Medicare patients across 79 services.
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
- (818) 242-6811
- Email not available
Practice Locations
8100 SUNLAND BLVD
Sun Valley, CA 91352
Procedures Most Often Billed to Medicare
79 services · 75 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
46 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
33 |
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.
Trained at Medical College of Ohio 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1991 at Medical College of Ohio 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Choi's specialty?
Dr. Choi is an obstetrics/gynecology in Sun Valley, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OBSTETRICS/GYNECOLOGY”.
NPI registry
Where can I find Dr. Choi?
Dr. Choi is listed at 8100 SUNLAND BLVD, Sun Valley, CA 91352. 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 (818) 242-6811. 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 1023073152. 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 Medical College of Ohio, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Choi been practicing?
Dr. Choi has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Choi known for?
According to Medicare billing data, Dr. Choi the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.