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IAN CHAN MD PC
NPI 1710546270
Ophthalmology in Brooklyn, NY

Active since June 09, 2019
869 57TH ST APT 102, BROOKLYN, NY 11220(631) 213-1668(718) 509-6993 Get Directions Write a Review

NPPES record last updated: September 8, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 8, 2021, Jun 9, 2019 (2 updates tracked since 2019).

About Ian Chan Md Pc NPPES

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

IAN CHAN MD PC (NPI 1710546270) is a healthcare organization registered as an ophthalmology in Brooklyn, New York and active in the NPI registry since June 2019. The organization lists Ian Hing-yeung Chan, President, as its authorized official.

NPPES Registry Identity

NPI1710546270
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameIAN CHAN MD PC
Location Address869 57TH ST APT 102Brooklyn, NY 11220-5192
Mailing Address139 Centre St Ph 113New York, NY 10013-4559 · (631) 213-1668 · Fax (718) 509-6993
Phone(631) 213-1668
Fax(718) 509-6993
Organization SubpartNo
Authorized OfficialIan Hing-yeung ChanPresident · (631) 213-1668
Enumeration DateJune 9, 2019
Last NPPES UpdateSeptember 8, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2021
✔ NPI 1710546270 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
869 57TH ST APT 102, Brooklyn, NY 11220
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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, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateNew YorkEnrollment IDO20130508000038Non-DME Part B · Clinic/Group PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Ian Chan MD PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Ian Chan, MD
Ophthalmology
NPI 1942406756
139 CENTRE ST PH 113
New York, NY 10013
(917) 238-7875
✔ PECOS✔ Accepts Medicare5.6 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 Ian Chan MD PC's NPI number?

The NPI number for Ian Chan MD PC is 1710546270. It was assigned to this organization in the NPPES registry on June 9, 2019.

Where is Ian Chan MD PC located?

Ian Chan MD PC is located at 869 57th St Apt 102, Brooklyn, NY 11220. The listed phone number is (631) 213-1668.

What is Ian Chan MD PC's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Is Ian Chan MD PC enrolled in Medicare?

Yes. Ian Chan MD PC is registered in the Medicare PECOS enrollment system.

When is Ian Chan MD PC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (New York, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Ian Chan MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Ophthalmology) reassigns their Medicare billing to Ian Chan 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Ian Chan MD PC was last updated on September 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.