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VIVIAN NG M.D.
NPI 1700026416
Internal Medicine - Gastroenterology in Redwood City, CA

Active since February 20, 2009PECOS EnrolledAccepts Medicare Assignment
905 MAPLE ST., REDWOOD CITY, CA 94063(650) 299-2537(650) 299-4172 Get Directions Write a Review

NPPES record last updated: December 20, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 20, 2021, Aug 25, 2021, May 18, 2020 and 1 more (4 updates tracked since 2016).

About Vivian Ng M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

VIVIAN NG M.D. (NPI 1700026416) is an individual gastroenterology provider in Redwood City, California, licensed in California (A111047) and active in the NPI registry since February 2009. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2008).

NPPES Registry Identity

NPI1700026416
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameVIVIAN NGCredential: M.D.
Location Address905 MAPLE ST.Redwood City, CA 94063
Mailing Address905 Maple St.Redwood City, CA 94063 · (650) 299-2537 · Fax (650) 299-4172
Phone(650) 299-2537
Fax(650) 299-4172
Sole ProprietorNo
Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2008
Enumeration DateFebruary 20, 2009
Last NPPES UpdateDecember 20, 20214 updates tracked since enumeration
NPPES CertifiedAugust 9, 2021
✔ NPI 1700026416 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · A111047
Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License A111047 (CA)
905 MAPLE ST., Redwood City, CA 94063
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Vivian Ng M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID941488902
PECOS Enrollment IDI20110623000016
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94063 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Vivian Ng's NPI number?

The NPI number for Vivian Ng is 1700026416. It was assigned to this individual provider in the NPPES registry on February 20, 2009.

Where is Vivian Ng located?

Vivian Ng practices at 905 Maple St., Redwood City, CA 94063. The listed phone number is (650) 299-2537.

What is Vivian Ng's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Vivian Ng enrolled in Medicare?

Yes. Vivian Ng is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Vivian Ng was last updated on December 20, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.