Physician Profile
Unclaimed ProfileAbout RYOO
Joan Joonsun Ryoo, MD, MSHS is a healthcare provider in Los Angeles, CA specializing in radiation oncology. Joan trained at Harvard Medical School, graduating in 2004. Joan is also listed as specializing in surgery and therapeutic radiology.
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
- (323) 783-2841
- Email not available
Practice Locations
4950 W SUNSET BLVD SECOND FLOOR
Los Angeles, CA 90027
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other radiation oncology specialists at this location 5
Same specialty, same street address — most likely the same department or group.
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 radiation oncology specialists in Los Angeles 7
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Ryoo?
Dr. Ryoo is a radiation oncology in Los Angeles, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “RADIATION ONCOLOGY”.
NPI registry
What is Dr. Ryoo's address?
Dr. Ryoo is listed at 4950 W SUNSET BLVD SECOND FLOOR, Los Angeles, CA 90027. 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. Ryoo?
The number on file is (323) 783-2841. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Ryoo's NPI number?
Dr. Ryoo's National Provider Identifier is 1699854596. 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. Ryoo train?
Dr. Ryoo attended Harvard Medical School, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ryoo been practicing?
Dr. Ryoo has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
Has Dr. Ryoo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ryoo. 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.