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MARK FLECKNER M.D., P.C.
NPI 1285850693
Ophthalmology in Garden City, NY

Active since April 17, 2007
520 FRANKLIN AVE, SUITE L-6, GARDEN CITY, NY 11530(516) 739-5905 Get Directions Write a Review

NPPES record last updated: February 14, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mark Fleckner M.d., P.c. NPPES

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

MARK FLECKNER M.D., P.C. (NPI 1285850693) is a healthcare organization registered as an ophthalmology in Garden City, New York and active in the NPI registry since April 2007. The organization lists Mark Fleckner, President, as its authorized official.

NPPES Registry Identity

NPI1285850693
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameMARK FLECKNER M.D., P.C.
Location Address520 FRANKLIN AVE, SUITE L-6Garden City, NY 11530-5801
Mailing Address520 Franklin Ave, Suite L-6Garden City, NY 11530-5801 · (516) 739-5905
Phone(516) 739-5905
Organization SubpartNo
Authorized OfficialMark FlecknerPresident · (516) 739-5905
Enumeration DateApril 17, 2007
Last NPPES UpdateFebruary 14, 2008
✔ NPI 1285850693 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in NY · 200481
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.
520 FRANKLIN AVE, Garden City, NY 11530
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Other Identifiers 3

Medicare UPING14265NY
Medicaid02059149NY
Medicare PINWWT241NY

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)

Mark Fleckner M.d., P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Mark Fleckner M.D., P.C., which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (4)

Mark Fleckner, M.D.,P.C.
Ophthalmology
NPI 1225063274
520 FRANKLIN AVE SUITE L6
Garden City, NY 11530
(516) 739-5905
✔ PECOS✔ Accepts MedicareSame address
Naima Zilkha, M.D.
Ophthalmology
NPI 1245201847
360 MONTAUK HWY
West Islip, NY 11795
(631) 422-1110
✔ PECOS✔ Accepts Medicare17 mi
Andrew Gewirtz, MD
Ophthalmology
NPI 1982601191
524 E 20TH ST 4H
New York, NY 10009
(212) 995-8458
✔ PECOS18 mi
Andrew Brookner, M.D.
Ophthalmology
NPI 1629063888
1 HALTON GREEN WAY
Greenville, SC 29607
(864) 654-6706
✔ PECOS✔ Accepts Medicare625 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 Mark Fleckner M.D., P.C.'s NPI number?

The NPI number for Mark Fleckner M.D., P.C. is 1285850693. It was assigned to this organization in the NPPES registry on April 17, 2007.

Where is Mark Fleckner M.D., P.C. located?

Mark Fleckner M.D., P.C. is located at 520 Franklin Ave Suite L-6, Garden City, NY 11530. The listed phone number is (516) 739-5905.

What is Mark Fleckner M.D., P.C.'s specialty?

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

Is Mark Fleckner M.D., P.C. enrolled in Medicare?

Yes. Mark Fleckner M.D., P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mark Fleckner M.D., P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Ophthalmology, reassign their Medicare billing to Mark Fleckner M.D., P.C.. 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Mark Fleckner M.D., P.C. was last updated on February 14, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.