JOHN JIWOONG RYU MD
NPI 1497783021
Anesthesiology in Walnut Creek, CA

Q: What is John Ryu's NPI number?

The NPI number for John Ryu is 1497783021. It was assigned to this individual provider in the NPPES registry on June 30, 2006.

Q: What is John Ryu's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for John Ryu was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 30, 2006PECOS EnrolledAccepts Medicare Assignment

61.16/100

CMS Quality Rating

1601 YGNACIO VALLEY RD, WALNUT CREEK, CA 94598(925) 939-3000(925) 947-5286 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About John Jiwoong Ryu Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN JIWOONG RYU MD (NPI 1497783021) is an individual anesthesiology provider in Walnut Creek, California, licensed in California (A51686) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Vanderbilt University School Of Medicine (1991).

NPPES Registry Identity

NPI1497783021

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameJOHN JIWOONG RYUCredential: MD

Location Address1601 YGNACIO VALLEY RDWalnut Creek, CA 94598-3122

Mailing AddressPo Box 7793San Francisco, CA 94120-7793

Phone(925) 939-3000

Fax(925) 947-5286

Sole ProprietorNo

Medical School CMSVanderbilt University School Of MedicineGraduated 1991

Enumeration DateJune 30, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1497783021 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A51686

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

1601 YGNACIO VALLEY RD, Walnut Creek, CA 94598

Open in Google Maps ↗

Other Identifiers 3

Medicaid00A516860CA

Medicare UPING23021

Medicare ID-Type Unspecified00A516860

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

John Jiwoong Ryu Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7315008000

PECOS Enrollment IDI20081213000151

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for lens surgery 00142

Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.

12 services12 patients

Anesthesia for procedure on anus and rectum 00902

Anesthesia for procedures on the anus and rectum ensures comfort during medical procedures. It involves the administration of medication to numb the area or induce sleep, so you don't feel pain or discomfort. This helps doctors perform necessary procedures smoothly and effectively.

12 services12 patients

Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810

Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.

12 services12 patients

Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415

This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.

12 services12 patients

Anesthesia for other procedure on nose and sinuses 00160

Anesthesia for procedures on the nose and sinuses involves administering medication to block sensation, ensuring comfort during the procedure. It can be local (numbing a specific area) or general (you're asleep). This helps prevent pain and discomfort during the procedure.

11 services11 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

61.16/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

50.6

Improvement Activities

Reported Quality Measures

Post-Anesthetic Transfer of Care Measure: Procedure Room to a Post Anesthesia Care Unit (PACU)

Percentage of patients, regardless of age, who are under the care of an anesthesia practitioner and are admitted to a PACU or other non-ICU location in which a post-anesthetic formal transfer of care protocol or checklist which includes the key transfer of…

5%170 patients1/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MALCOLM C JOHNSON MD

Emergency Medicine