Physician Profile
Unclaimed ProfileAbout RYU
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Education & Training
Areas of Expertise
Common questions
What does Dr. Ryu specialise in?
Dr. Ryu is a radiation oncology in Stony Brook, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “RADIATION ONCOLOGY”.
NPI registry
Where is Dr. Ryu located?
Dr. Ryu is listed at 101 NICOLLS RD LEVLE 2 RADIATION ONCOLOGY, Stony Brook, NY 11794. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ryu's phone number?
The number on file is (631) 444-7770. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Ryu?
Dr. Ryu's National Provider Identifier is 1639239049. 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. Ryu go to medical school?
Dr. Ryu attended Other, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ryu have?
Dr. Ryu has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ryu do most often?
According to Medicare billing data, Dr. Ryu performs imaging including calculation of radiation therapy dose and design and construction of complex radiation treatment device, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Ryu's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ryu. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (631) 444-7770
- Email not available
Practice Locations
101 NICOLLS RD LEVLE 2 RADIATION ONCOLOGY
Stony Brook, NY 11794
Procedures Most Often Billed to Medicare
592 services · 274 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Calculation of radiation therapy dose | Imaging | 77300 |
122 |
| Design and construction of complex radiation treatment device | Imaging | 77334 |
54 |
| Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved | Imaging | 77290 |
37 |
| Complex radiation therapy planning | Imaging | 77263 |
37 |
| Design and construction of radiation treatment device for high precision radiation therapy | Imaging | 77338 |
35 |
| High precision radiation therapy planning | Imaging | 77301 |
35 |
| Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | Billing code | G6002 |
190 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
48 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
18 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
16 |
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.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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 Stony Brook 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1982 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Calculation of radiation therapy dose 8
Providers in NY 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.