Dr James Saeyung Ahn, MD - Medicare Anesthesiology in Corona, CA

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Dr James Saeyung Ahn, MD is a medicare enrolled "Anesthesiology" physician in Corona, California. He graduated from medical school in 1990 and has 34 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Corona Anesthesia Group, Inc. and his current practice location is 800 S Main St, Corona, California. You can reach out to his office (for appointments etc.) via phone at (951) 737-4343.

Dr James Saeyung Ahn is licensed to practice in California (license number G84344) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1588641963.

Contact Information

Dr James Saeyung Ahn, MD
800 S Main St,
Corona, CA 92882-3420
(951) 737-4343
Not Available

Map and Direction




Physician's Profile

Full NameDr James Saeyung Ahn
GenderMale
SpecialityAnesthesiology
Experience34 Years
Location800 S Main St, Corona, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr James Saeyung Ahn graduated from medical school in 1990
  NPI Data:
  • NPI Number: 1588641963
  • Provider Enumeration Date: 12/28/2005
  • Last Update Date: 05/08/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0941236590
  • Enrollment ID: I20050714000559

Medical Identifiers

Medical identifiers for Dr James Saeyung Ahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1588641963NPI-NPPES
00G843440MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology G84344 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Corona Regional Medical CenterCorona, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Corona Anesthesia Group, Inc.741621257622

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr James Saeyung Ahn allows following entities to bill medicare on his behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678
Entity NameRegents Of The University Of
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487602546
PECOS PAC ID: 8729983473
Enrollment ID: O20031204001085
Entity NameAllied Anesthesia Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346267267
PECOS PAC ID: 6103728407
Enrollment ID: O20040126001001
Entity NameCity Of Hope Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871886366
PECOS PAC ID: 3779751656
Enrollment ID: O20110720000244
Entity NameFirst Choice Physician Partners
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104183052
PECOS PAC ID: 0941465322
Enrollment ID: O20120710000480
Entity NameCorona Anesthesia Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558865840
PECOS PAC ID: 7416212576
Enrollment ID: O20180521002362

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr James Saeyung Ahn is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr James Saeyung Ahn, MD
800 S Main St,
Corona, CA 92882-3420

Ph: () -		Dr James Saeyung Ahn, MD
800 S Main St,
Corona, CA 92882-3420

Ph: (951) 737-4343

Reviews and Comments


Anesthesiology Doctors in Corona, CA

Jeffrey Rieker, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 800 S Main St, Corona, CA 92882
Phone: 951-737-4343    
William John Brya, M.D.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 25015 Cliffrose St, Corona, CA 92883
Phone: 951-277-9890    Fax: 951-277-9890
Wendy S Martin, MD
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 800 S Main St, Corona, CA 92882
Phone: 909-737-4343    
Mahesh Suranjan Desilva, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 800 S. Main Street, Corona, CA 92882
Phone: 951-736-6233    
Susan Trinh, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 6459 Whitelily St, Corona, CA 92880
Phone: 858-232-8572    
Youn S. Toh, M.D.
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 24258 Owl Ct, Corona, CA 92883
Phone: 951-603-3496    
Dr. Ramin Rahimian, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 800 S Main St, Corona, CA 92882
Phone: 951-736-6229    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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