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DR. JAMES SAEYUNG AHN M.D.
NPI 1588641963
Anesthesiology in Corona, CA

Active since December 28, 2005PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
800 S MAIN ST, CORONA, CA 92882(951) 737-4343 Get Directions Write a Review

NPPES record last updated: May 8, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 8, 2024, Jul 14, 2023 (2 updates tracked since 2023).

About Dr. James Saeyung Ahn M.d. NPPES

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

DR. JAMES SAEYUNG AHN M.D. (NPI 1588641963) is an individual anesthesiology provider in Corona, California, licensed in California (G84344) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Duarte, and is a graduate of Other (1990).

NPPES Registry Identity

NPI1588641963
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. JAMES SAEYUNG AHNCredential: M.D.
Location Address800 S MAIN STCorona, CA 92882-3420
Mailing Address800 S Main StCorona, CA 92882-3420
Phone(951) 737-4343
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateDecember 28, 2005
Last NPPES UpdateMay 8, 20242 updates tracked since enumeration
NPPES CertifiedJuly 14, 2023
✔ NPI 1588641963 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · G84344
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.
800 S MAIN ST, Corona, CA 92882
Open in Google Maps ↗

Secondary Practice Location 1

Location 11500 Duarte RdDuarte, CA 91010-3012 · Phone (626) 256-4673

Other Identifiers 1

Medicaid00G843440CA

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

Dr. James Saeyung Ahn M.d. 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 ID941236590
PECOS Enrollment IDI20050714000559
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

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 other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
19 services17 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.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality88.99
Improvement Activities40

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.

AARON DEATHERAGE
Student in an Organized Health Care Education/Training Program
800 S MAIN ST
CORONA, CA 92882
Riverside County (951) 737-4343
CRYSTAL SOULE
Dietitian, Registered
800 S MAIN ST
CORONA, CA 92882
Riverside County (951) 737-4343
CHERYL JANE SAPIDA P.A
Physician Assistant
800 S MAIN ST
CORONA, CA 92882
Riverside County (909) 736-6241
INTEGRATED ANESTHESIA MEDICAL GROUP PC
Anesthesiology (Pain Medicine)
800 S MAIN ST
CORONA, CA 92882
Riverside County (310) 379-2134
JEFFREY RIEKER M.D.
Anesthesiology
800 S MAIN ST
CORONA, CA 92882
Riverside County (951) 737-4343
SCOTT MATTHEW BROWN P.A.-C
Physician Assistant
800 S MAIN ST
CORONA, CA 92882
Riverside County (909) 736-6241
DHIREN PATEL FNP-C
Nurse Practitioner (Family)
800 S MAIN ST
CORONA, CA 92882
Riverside County (951) 737-4343
WENDY S MARTIN MD
Anesthesiology
800 S MAIN ST
CORONA, CA 92882
Riverside County (909) 737-4343

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Ahn's NPI number?

The NPI number for James Ahn is 1588641963. It was assigned to this individual provider in the NPPES registry on December 28, 2005.

Where is James Ahn located?

James Ahn practices at 800 S Main St, Corona, CA 92882. The listed phone number is (951) 737-4343.

What is James Ahn's specialty?

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

Is James Ahn enrolled in Medicare?

Yes. James Ahn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for James Ahn was last updated on May 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.