Elizabeth Wonie Hwang, MD - Medicare Gastroenterology in Stanford, CA

Elizabeth Wonie Hwang, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Stanford, California. She went to Johns Hopkins University School Of Medicine and graduated in 2005 and has 19 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice County Of Santa Clara and her current practice location is 300 Pasteur Dr, Alway Building, Room M211, Stanford, California. You can reach out to her office (for appointments etc.) via phone at (650) 721-6190.

Elizabeth Wonie Hwang is licensed to practice in California (license number A107452) 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 1679765838.

Contact Information

Elizabeth Wonie Hwang, MD
300 Pasteur Dr, Alway Building, Room M211,
Stanford, CA 94305-2200
(650) 721-6190
(650) 723-5488

Map and Direction




Physician's Profile

Full NameElizabeth Wonie Hwang
GenderFemale
SpecialityGastroenterology
Experience19 Years
Location300 Pasteur Dr, Stanford, 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:
  • Elizabeth Wonie Hwang attended and graduated from Johns Hopkins University School Of Medicine in 2005
  NPI Data:
  • NPI Number: 1679765838
  • Provider Enumeration Date: 08/13/2007
  • Last Update Date: 04/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 4587820543
  • Enrollment ID: I20120720000013

Medical Identifiers

Medical identifiers for Elizabeth Wonie Hwang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679765838NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 243597 (New York)Secondary
207RI0008XInternal Medicine - Hepatology A107452 (California)Secondary
207RT0003XInternal Medicine - Transplant Hepatology A107452 (California)Secondary
207RG0100XInternal Medicine - Gastroenterology A107452 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Santa Clara Valley Medical CenterSan jose, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Santa Clara1254244973722

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 Wonie Hwang allows following entities to bill medicare on her behalf.
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699885079
PECOS PAC ID: 1254244973
Enrollment ID: O20040113000784

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 Wonie Hwang 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 Wonie Hwang, MD
300 Pasteur Dr, Alway Building, Room M211,
Stanford, CA 94305-2200

Ph: (650) 721-6190
Elizabeth Wonie Hwang, MD
300 Pasteur Dr, Alway Building, Room M211,
Stanford, CA 94305-2200

Ph: (650) 721-6190

Reviews and Comments


Internal Medicine Doctors in Stanford, CA

Prista Charuworn, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 300 Pasteur Dr, Alway Build M211, Mc 5187, Stanford, CA 94305
Phone: 650-723-6661    
Yu Kuang Lai, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Andrea Lorenze, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Drive, Lane 154, Stanford, CA 94305
Phone: 650-723-6661    Fax: 650-498-6205
Audra Horomanski, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    Fax: 650-498-6205
Meghan Brady Marmor, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Lauren Michelle Ulsh, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 300 Pasteur Dr, Stanford, CA 94305
Phone: 650-723-4000    
Ann M Chen, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 300 Pasteur Dr, A149, Mc5202, Stanford, CA 94305
Phone: 650-725-3376    Fax: 650-723-8305

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.