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CHRIS DEMETRIOU MD PC
NPI 1386954279
Internal Medicine - Gastroenterology in Garden City, NY

Active since October 14, 2010
623 STEWART AVE STE 106, GARDEN CITY, NY 11530(516) 650-3355(866) 706-0812 Get Directions Write a Review

NPPES record last updated: May 5, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 5, 2025, Feb 14, 2025, Dec 16, 2021 (3 updates tracked since 2021).

About Chris Demetriou Md Pc NPPES

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

CHRIS DEMETRIOU MD PC (NPI 1386954279) is a healthcare organization registered as a gastroenterology in Garden City, New York and active in the NPI registry since October 2010. The organization lists Veronica Verde, Administrator, as its authorized official.

NPPES Registry Identity

NPI1386954279
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameCHRIS DEMETRIOU MD PC
Location Address623 STEWART AVE STE 106Garden City, NY 11530-4771
Mailing Address623 Stewart Ave Ste 106Garden City, NY 11530-4771 · (516) 650-3355 · Fax (866) 706-0812
Phone(516) 650-3355
Fax(866) 706-0812
Organization SubpartNo
Authorized OfficialVeronica VerdeAdministrator · (516) 650-3355
Enumeration DateOctober 14, 2010
Last NPPES UpdateMay 5, 20253 updates tracked since enumeration
NPPES CertifiedMay 5, 2025
✔ NPI 1386954279 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
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.
623 STEWART AVE STE 106, Garden City, NY 11530
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Chris Demetriou Md Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Chris Demetriou MD PC, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 5 within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Chris Demetriou, M.D.
Gastroenterology
NPI 1194806075
623 STEWART AVE STE 106
Garden City, NY 11530
(516) 650-3355
✔ PECOS✔ Accepts MedicareSame address
Jennifer Miller, DO
Gastroenterology
NPI 1396275269
623 STEWART AVE STE 106
Garden City, NY 11530
(516) 650-3355
✔ PECOS✔ Accepts MedicareSame address
Amy Tan, MD
Gastroenterology
NPI 1932542149
623 STEWART AVE STE 106
Garden City, NY 11530
(516) 650-3355
✔ PECOS✔ Accepts MedicareSame address
Joseph Ilasi, D.O.
Pathology
NPI 1740312818
51 CHARLES LINDBERGH BLVD
Uniondale, NY 11553
(516) 794-4646
✔ PECOS✔ Accepts Medicare0.9 mi
Lili Lee, MD
Pathology
NPI 1154555902
6 OHIO DR 202
New Hyde Park, NY 11042
(516) 304-7278
✔ PECOS✔ Accepts Medicare4.5 mi

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

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 Chris Demetriou MD PC's NPI number?

The NPI number for Chris Demetriou MD PC is 1386954279. It was assigned to this organization in the NPPES registry on October 14, 2010.

Where is Chris Demetriou MD PC located?

Chris Demetriou MD PC is located at 623 Stewart Ave Ste 106, Garden City, NY 11530. The listed phone number is (516) 650-3355.

What is Chris Demetriou MD PC's specialty?

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

Is Chris Demetriou MD PC enrolled in Medicare?

Yes. Chris Demetriou MD PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Chris Demetriou MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 2 Medicare specialties reassign their Medicare billing to Chris Demetriou MD PC. A 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 the clinician's services. The largest specialties are Gastroenterology (3) and Pathology (2). Of these, 3 practice at this address and 5 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Chris Demetriou MD PC was last updated on May 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.