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GERSTENFELD & GERSTENFELD M D S P C
NPI 1720254840
Ophthalmology in Staten Island, NY

Active since May 08, 2008CLIA 33D2304496 · Waiver
4299 HYLAN BLVD, STATEN ISLAND, NY 10312(718) 984-7616(718) 984-8584 Get Directions Write a Review

NPPES record last updated: April 16, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gerstenfeld & Gerstenfeld M D S P C NPPES

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

GERSTENFELD & GERSTENFELD M D S P C (NPI 1720254840), doing business as Island Eye Surgery Specialists, is a healthcare organization registered as an ophthalmology in Staten Island, New York and active in the NPI registry since May 2008. The organization holds a CLIA Waiver certificate valid through March 26, 2027 and lists David Gerstenfeld, President, as its authorized official.

NPPES Registry Identity

NPI1720254840
Entity TypeOrganization
Primary Taxonomy207W00000X
Legal Business NameGERSTENFELD & GERSTENFELD M D S P C
Location Address4299 HYLAN BLVDStaten Island, NY 10312-6527
Mailing Address4299 Hylan BlvdStaten Island, NY 10312-6527 · (718) 984-7616 · Fax (718) 984-8584
Phone(718) 984-7616
Fax(718) 984-8584
Organization SubpartNo
Authorized OfficialDavid GerstenfeldPresident · (718) 984-7616
Enumeration DateMay 8, 2008
Last NPPES UpdateApril 16, 2025
NPPES CertifiedApril 16, 2025
✔ NPI 1720254840 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.
4299 HYLAN BLVD, Staten Island, NY 10312
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Other Names 1

Doing Business AsIsland Eye Surgery Specialists

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)

Gerstenfeld & Gerstenfeld M D S P C is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Gerstenfeld & Gerstenfeld M D S P C, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (7)

David Gerstenfeld, M.D.
Ophthalmology
NPI 1386618098
4299 HYLAN BLVD
Staten Island, NY 10312
(718) 984-7616
✔ PECOS✔ Accepts MedicareSame address
Michael Nejat, MD
Ophthalmology
NPI 1871576025
4299 HYLAN BLVD
Staten Island, NY 10312
(718) 984-7616
✔ PECOS✔ Accepts MedicareSame address
Jacob Kammerman, MD
Ophthalmology
NPI 1790285781
4299 HYLAN BLVD
Staten Island, NY 10312
(718) 984-7616
✔ PECOSSame address
Chaneve Jeanniton, MD
Ophthalmology
NPI 1023316429
310 E 14TH ST
New York, NY 10003
(212) 979-4000
✔ PECOS16 mi
Moshe Strauss, OD
Optometry
NPI 1982776332
1326 BOUND BROOK RD
Middlesex, NJ 08846
(732) 356-0300
✔ PECOS✔ Accepts Medicare19 mi
Jonathan Naysan, M.D.
Ophthalmology
NPI 1477879575
300 COMMUNITY DR
Manhasset, NY 11030
(516) 562-0100
✔ PECOS✔ Accepts Medicare29 mi
Paul Guerriero, M.D.
Ophthalmology
NPI 1982697033
99 DUTCH HILL RD
Orangeburg, NY 10962
(845) 359-7272
✔ PECOS✔ Accepts Medicare37 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 33D2304496

Gerstenfeld And Gerstenfeld MD Pcs · Staten Island, NY
Active · expires Mar 26, 2027
CLIA Number33D2304496
Laboratory TypePhysician Office
Certificate Effective DateMay 14, 2024
Certificate Expiration DateMarch 26, 2027
Laboratory DirectorDr. Michael Nejat
Laboratory Phone(718) 984-7616
Laboratory LocationGerstenfeld And Gerstenfeld MD Pcs1500 Victory Blvd, Staten Island, NY 10301
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Gerstenfeld & Gerstenfeld M D S P C's NPI number?

The NPI number for Gerstenfeld & Gerstenfeld M D S P C is 1720254840. It was assigned to this organization in the NPPES registry on May 8, 2008. The provider is doing business as Island Eye Surgery Specialists.

Where is Gerstenfeld & Gerstenfeld M D S P C located?

Gerstenfeld & Gerstenfeld M D S P C is located at 4299 Hylan Blvd, Staten Island, NY 10312. The listed phone number is (718) 984-7616.

What is Gerstenfeld & Gerstenfeld M D S P C's specialty?

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

Is Gerstenfeld & Gerstenfeld M D S P C enrolled in Medicare?

Yes. Gerstenfeld & Gerstenfeld M D S P C is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gerstenfeld & Gerstenfeld M D S P C?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to Gerstenfeld & Gerstenfeld M D S 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. The largest specialties are Ophthalmology (6) and Optometry (1). Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Gerstenfeld & Gerstenfeld M D S P C hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D2304496) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Gerstenfeld & Gerstenfeld M D S P C was last updated on April 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.