Nancy Sun, MD - Medicare Emergency Medicine in Simi Valley, CA

Nancy Sun, MD is a medicare enrolled "Emergency Medicine" physician in Simi Valley, California. She went to George Washington University School Of Medicine and graduated in 2000 and has 24 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Allied Emergency Physicians, Inc. and her current practice location is 2975 Sycamore Dr, Simi Valley, California. You can reach out to her office (for appointments etc.) via phone at (805) 955-6107.

Nancy Sun is licensed to practice in California (license number A98171) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1821146051.

Contact Information

Nancy Sun, MD
2975 Sycamore Dr,
Simi Valley, CA 93065-1201
(805) 955-6107
(805) 527-9374

Map and Direction




Physician's Profile

Full NameNancy Sun
GenderFemale
SpecialityEmergency Medicine
Experience24 Years
Location2975 Sycamore Dr, Simi Valley, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Nancy Sun attended and graduated from George Washington University School Of Medicine in 2000
  NPI Data:
  • NPI Number: 1821146051
  • Provider Enumeration Date: 01/05/2007
  • Last Update Date: 01/28/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 8527043538
  • Enrollment ID: I20070424000721

Medical Identifiers

Medical identifiers for Nancy Sun such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821146051NPI-NPPES
A98171OtherCAMEDICAL LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A98171 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Adventist Health Simi ValleySimi valley, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Allied Emergency Physicians, Inc.993139160419

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. Nancy Sun allows following entities to bill medicare on her behalf.
Entity NameLos Robles Emergency Physicians Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417983552
PECOS PAC ID: 4880582618
Enrollment ID: O20040916000469
Entity NameAllied Emergency Physicians, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043531346
PECOS PAC ID: 9931391604
Enrollment ID: O20101013000562

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. Nancy Sun 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
Nancy Sun, MD
Po Box 660446,
Arcadia, CA 91066-0446

Ph: (626) 447-0296
Nancy Sun, MD
2975 Sycamore Dr,
Simi Valley, CA 93065-1201

Ph: (805) 955-6107

Reviews and Comments


Emergency Medicine Doctors in Simi Valley, CA

Joyce Norman, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2975 Sycamore Dr, Emergency Department, Simi Valley, CA 93065
Phone: 805-955-6000    
Marc L. Mendes, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 2975 Sycamore Dr, Emergency Department, Simi Valley, CA 93065
Phone: 805-955-6101    
Virginia T. Valadka, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2975 Sycamore Dr, Emergency Department, Simi Valley, CA 93065
Phone: 805-955-6000    
Dr. Alfred L. Yu, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2975 Sycamore Dr, Emergency Department, Simi Valley, CA 93065
Phone: 805-955-6000    
Laura L. Leistiko, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2975 Sycamore Dr, Emergency Department, Simi Valley, CA 93065
Phone: 805-955-6000    
Daniel T Mcginn, DO
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 124 Park Hill Rd, Simi Valley, CA 93065
Phone: 805-907-8256    

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.