Elizabeth Nguyen, MD - Medicare Emergency Medicine in Walnut Creek, CA

Elizabeth Nguyen, MD is a medicare enrolled "Emergency Medicine" physician in Walnut Creek, California. Her current practice location is 1425 S Main St, Walnut Creek, California. You can reach out to her office (for appointments etc.) via phone at (415) 508-8042.

Elizabeth Nguyen is licensed to practice in California (license number A151962) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1639532344.

Contact Information

Elizabeth Nguyen, MD
1425 S Main St,
Walnut Creek, CA 94596-5318
(415) 508-8042
Not Available

Map and Direction




Physician's Profile

Full NameElizabeth Nguyen
GenderFemale
SpecialityEmergency Medicine
Location1425 S Main St, Walnut Creek, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1639532344
  • Provider Enumeration Date: 03/30/2016
  • Last Update Date: 09/26/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7810255585
  • Enrollment ID: I20181010001652

Medical Identifiers

Medical identifiers for Elizabeth Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639532344NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine A151962 (California)Primary

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. Elizabeth Nguyen allows following entities to bill medicare on her behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520
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 NamePalomar Emergency Physicians, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124698139
PECOS PAC ID: 9830593730
Enrollment ID: O20210813000628

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. Elizabeth Nguyen 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
Elizabeth Nguyen, MD
1425 S Main St,
Walnut Creek, CA 94596-5318

Ph: (415) 508-8042
Elizabeth Nguyen, MD
1425 S Main St,
Walnut Creek, CA 94596-5318

Ph: (415) 508-8042

Reviews and Comments


Emergency Medicine Doctors in Walnut Creek, CA

Brook Andrew Woolley, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1425 S Main St, Emergency Medicine Department, Walnut Creek, CA 94596
Phone: 925-295-5100    
Malcolm C Johnson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598
Phone: 925-939-3000    
Alice Decker Hunter, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598
Phone: 925-939-3000    
Seigfred P. Jalalon, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1450 Treat Blvd # 160, Walnut Creek, CA 94597
Phone: 925-296-9000    
Theodore Ira Kloth, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598
Phone: 925-939-3000    
Stephanie Carlson, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    
Michael R. Lozano, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    

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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