Physician Profile
Unclaimed ProfileAbout RYU
John Jiwoong Ryu, MD is a healthcare provider in Walnut Creek, CA specialising in anesthesiology. John trained at Vanderbilt University School of Medicine, graduating in 1991.
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. Ryu's specialty?
Dr. Ryu is an anesthesiology in Walnut Creek, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
Where can I find Dr. Ryu?
Dr. Ryu is listed at 1601 YGNACIO VALLEY RD, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ryu?
The number on file is (925) 939-3000. 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 1497783021. 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. Ryu's medical education?
Dr. Ryu attended Vanderbilt University School of Medicine, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ryu have?
Dr. Ryu has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Ryu known for?
According to Medicare billing data, Dr. Ryu performs procedures including injection of anesthetic agent and/or steroid into arm nerve bundle; provides treatments such as anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand and anesthesia for procedure on anus and rectum. 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
- (925) 939-3000
- Email not available
Practice Locations
1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598
Procedures Most Often Billed to Medicare
59 services · 59 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) | Procedure | 64415 |
12 |
| Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand | Anaesthesia | 01810 |
12 |
| Anesthesia for procedure on anus and rectum | Anaesthesia | 00902 |
12 |
| Anesthesia for lens surgery | Anaesthesia | 00142 |
12 |
| Anesthesia for other procedure on nose and sinuses | Anaesthesia | 00160 |
11 |
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.
Other anesthesiology specialists at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
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.
More connections — 27 related providers in 4 groups
Other anesthesiology specialists in Walnut Creek 3
Same specialty, same city.
Trained at Vanderbilt University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1991 at Vanderbilt University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 8
Providers in CA 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.