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DR. NANCY CHUNG MD
NPI 1598923542
Internal Medicine - Gastroenterology in New York, NY

Active since May 27, 2008PECOS Enrolled
233 BROADWAY SUITE 2750, NEW YORK, NY 10279(212) 889-5544(212) 481-1089 Get Directions Write a Review

NPPES record last updated: November 29, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 29, 2021, Jul 25, 2018, Apr 1, 2016 and 1 more (4 updates tracked since 2016).

About Dr. Nancy Chung Md NPPES

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

DR. NANCY CHUNG MD (NPI 1598923542) is an individual gastroenterology provider in New York, New York, licensed in New York (249519) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1598923542
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameDR. NANCY CHUNGCredential: MD
Location Address233 BROADWAY SUITE 2750New York, NY 10279-1027
Mailing Address233 Broadway Suite 2750New York, NY 10279 · (212) 889-5544 · Fax (212) 481-1089
Phone(212) 889-5544
Fax(212) 481-1089
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2006
Enumeration DateMay 27, 2008
Last NPPES UpdateNovember 29, 20214 updates tracked since enumeration
NPPES CertifiedNovember 29, 2021
✔ NPI 1598923542 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 · 249519
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.
233 BROADWAY SUITE 2750, New York, NY 10279
Open in Google Maps ↗

Secondary Practice Location 1

Location 136 East 31 Street Suite 701New York, NY 10016-1001 · Phone (212) 889-5544 · Fax (212) 481-1089

Other Identifiers 1

Medicaid03138598NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

PECOS PAC ID1850437344
PECOS Enrollment IDI20091014000503
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 Reassignments

2

Medicare enrollment records show Nancy Chung reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medical Services Of Nassau, PC
Same address
Gastroenterology
233 BROADWAY RM 2750
New York, NY 10279
  • Reassigned Medicare billing, New York enrollment
  • 10 clinicians in this Medicare group
NPI 1598512626 (212) 889-5544
Lenox Hill Faculty Medical Affiliates University Faculty Prac
4.9 mi
Physician Assistant
100 E 77TH ST
New York, NY 10075
  • Reassigned Medicare billing, New York enrollment
  • 19 clinicians in this Medicare group
NPI 1619713716 (212) 434-2000

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Lenox Hill Hospital

Acute Care Hospitals · New York, NY
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330119
Location100 East 77th StreetNew York, NY 10021 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10279 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

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

DR. ADA ROMINA ENE MD
Internal Medicine
233 BROADWAY SUITE 2750
NEW YORK, NY 10279
New York County (212) 245-6893

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 Nancy Chung's NPI number?

The NPI number for Nancy Chung is 1598923542. It was assigned to this individual provider in the NPPES registry on May 27, 2008.

Where is Nancy Chung located?

Nancy Chung practices at 233 Broadway Suite 2750, New York, NY 10279. The listed phone number is (212) 889-5544.

What is Nancy Chung's specialty?

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

Is Nancy Chung enrolled in Medicare?

Yes. Nancy Chung is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Nancy Chung's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Chung reassigns Medicare benefits to 2 organizations: Medical Services Of Nassau, PC (New York, NY) and Lenox Hill Faculty Medical Affiliates University Faculty Prac (New York, NY). Each 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 Nancy Chung's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nancy Chung affiliated with any hospitals?

According to CMS data, Nancy Chung is affiliated with Lenox Hill Hospital.

When was this NPI record last updated?

The NPPES record for Nancy Chung was last updated on November 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.