Vivian Ng, MD - Medicare Gastroenterology in Redwood City, CA

Vivian Ng, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Redwood City, California. She went to University Of California, Geffen School Of Medicine and graduated in 2008 and has 16 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice Permanente Medical Group Inc and her current practice location is 905 Maple St., Redwood City, California. You can reach out to her office (for appointments etc.) via phone at (650) 299-2537.

Vivian Ng is licensed to practice in California (license number A111047) 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 1700026416.

Contact Information

Vivian Ng, MD
905 Maple St.,
Redwood City, CA 94063
(650) 299-2537
(650) 299-4172

Map and Direction




Physician's Profile

Full NameVivian Ng
GenderFemale
SpecialityGastroenterology
Experience16 Years
Location905 Maple St., Redwood City, 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:
  • Vivian Ng attended and graduated from University Of California, Geffen School Of Medicine in 2008
  NPI Data:
  • NPI Number: 1700026416
  • Provider Enumeration Date: 02/20/2009
  • Last Update Date: 12/20/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0941488902
  • Enrollment ID: I20110623000016

Medical Identifiers

Medical identifiers for Vivian Ng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1700026416NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A111047 (California)Secondary
207RG0100XInternal Medicine - Gastroenterology A111047 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102258376

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. Vivian Ng allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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. Vivian Ng 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
Vivian Ng, MD
905 Maple St.,
Redwood City, CA 94063

Ph: (650) 299-2537
Vivian Ng, MD
905 Maple St.,
Redwood City, CA 94063

Ph: (650) 299-2537

Reviews and Comments


Internal Medicine Doctors in Redwood City, CA

Dorothy D. Nguyen, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 1150 Veterans Blvd, Redwood City, CA 94063
Phone: 650-299-2588    Fax: 650-299-4071
Dr. Alison Laura Pachynski, MD MPH
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 2710 Middlefield Rd, Redwood City, CA 94063
Phone: 650-364-6010    Fax: 650-366-4732
Anagha V Jain, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1150 Veterans Blvd, Nephrology Dept, Redwood City, CA 94063
Phone: 650-299-4107    Fax: 650-299-3758
Ramesh Lingamneni, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 1150 Veterans Blvd, Redwood City, CA 94063
Phone: 650-299-2000    
Dr. Barrett Bryan, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 2900 Whipple Ave, Suite 130, Redwood City, CA 94062
Phone: 650-298-8774    Fax: 650-298-8667
Dr. Daniel Rengstorff, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2900 Whipple Ave Ste 245, Redwood City, CA 94062
Phone: 650-365-3700    Fax: 650-368-3836
Francis Chui, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 1150 Veterans Blvd, Redwood City, CA 94063
Phone: 650-299-2000    

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.