Physician Profile
Based in Portland, OR, Won Hyung Ryu, MD is listed in the NPI registry under neurological surgery. According to Medicare claims data, Won Hyung cared for 102 Medicare patients across 102 services. The services billed most often include initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes, new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
3303 S BOND AVE
Portland, OR 97239
Within Neurological Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Brain & spine conditions
Brain conditions
Brain disorders
Brain injury
Brain tumors
Movement disorders
Nerve disorders
Pain
Pediatric conditions
Spine & back
Spine conditions
Spine deformity
Trauma & injury
Most searched procedures
Brain & spine surgery
Brain procedures
Brain surgery
Cranial reconstruction
Diagnostic & therapeutic
Endovascular procedures
Functional neurosurgery
Monitoring & trauma
Nerve procedures
Nerve surgery
Pain procedures
Pediatric neurosurgery
Radiation & radiosurgery
Radiation surgery
Skull base surgery
Spasticity treatment
Spine procedures
Spine surgery
Vascular neurosurgery
102 services · 102 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
14 | Less often than most peers in Neurological Surgery |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
31 | More often than most peers in Neurological Surgery |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
23 | As often as other peers in Neurological Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
20 | Less often than most peers in Neurological Surgery |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
14 | Less often than most peers in Neurological Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Ryu is a neurosurgeon in Portland, OR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurological Surgery”.
NPI registry
Dr. Ryu is listed at 3303 S Bond Ave, Portland, OR 97239. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (503) 494-4314. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Ryu's National Provider Identifier is 1043872492. 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
Dr. Ryu attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
Dr. Ryu has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Ryu performs procedures including partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
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
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.