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DR. SANDY NG MD
NPI 1356838411
Internal Medicine - Gastroenterology in New York, NY

Active since April 15, 2018PECOS Enrolled
17 ELIZABETH STREET, SUITE 608, NEW YORK, NY 10013(212) 219-8031(212) 219-3903 Get Directions Write a Review

NPPES record last updated: June 5, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 5, 2026, Jun 13, 2024, Jun 21, 2018 and 1 more (4 updates tracked since 2018).

About Dr. Sandy Ng Md NPPES

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

DR. SANDY NG MD (NPI 1356838411) is an individual gastroenterology provider in New York, New York, licensed in New York (302230) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Flushing, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1356838411
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameDR. SANDY NGCredential: MD
Location Address17 ELIZABETH STREET, SUITE 608New York, NY 10013
Mailing Address17 Elizabeth Street, Suite 608New York, NY 10013-4803 · (212) 219-8031 · Fax (212) 219-3903
Phone(212) 219-8031
Fax(212) 219-3903
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateApril 15, 2018
Last NPPES UpdateJune 5, 20264 updates tracked since enumeration
NPPES CertifiedJune 5, 2026
✔ NPI 1356838411 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NY · 302230
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.
17 ELIZABETH STREET, New York, NY 10013
Open in Google Maps ↗

Secondary Practice Location 1

Location 1131-72 40th RoadFlushing, NY 11354 · Phone (718) 587-1111 · Fax (718) 886-3903

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sandy Ng Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7113265687
PECOS Enrollment IDI20240806000232
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.

Medicare Billing Reassignment

Medicare enrollment records show Sandy Ng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Downtown Gastroenterology Associates PC
Same address
Gastroenterology
17 ELIZABETH ST, #608
New York, NY 10013
  • Reassigned Medicare billing, New York enrollment
  • 5 clinicians in this Medicare group
NPI 1003976960 (212) 219-8031

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10013 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
$150.24 typical visit price
range $65.69 – $198.19
Typical copayment $37.56 (range $16.42 – $49.54)
Most-billed visit code 99204
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
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.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TSER FU HUANG
Anesthesiology (Pediatric Anesthesiology)
17 ELIZABETH STREET, #608
NEW YORK, NY 10013
New York County (212) 219-8031
DR. JERSY J CHEN DMD
Dentist (General Practice)
17 ELIZABETH STREET, SUITE #510
NEW YORK, NY 10013
New York County (212) 219-8820
DANNY CHU MD
Internal Medicine (Gastroenterology)
17 ELIZABETH STREET, # 608
NEW YORK, NY 10013
New York County (212) 219-8031

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 Sandy Ng's NPI number?

The NPI number for Sandy Ng is 1356838411. It was assigned to this individual provider in the NPPES registry on April 15, 2018.

Where is Sandy Ng located?

Sandy Ng practices at 17 Elizabeth Street Suite 608, New York, NY 10013. The listed phone number is (212) 219-8031.

What is Sandy Ng's specialty?

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

Is Sandy Ng enrolled in Medicare?

Yes. Sandy Ng is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sandy Ng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sandy Ng reassigns Medicare benefits to Downtown Gastroenterology Associates PC (New York, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sandy Ng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sandy Ng was last updated on June 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.