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STEPHEN ROBERT GREENBERG M.D.
NPI 1699878587
Ophthalmology in Holbrook, NY

Active since September 06, 2006PECOS Enrolled
233 UNION AVENUE, SUITE 104/105, HOLBROOK, NY 11741(631) 285-7311 Get Directions Write a Review

NPPES record last updated: February 9, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Stephen Robert Greenberg M.d. NPPES

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

STEPHEN ROBERT GREENBERG M.D. (NPI 1699878587) is an individual ophthalmology provider in Holbrook, New York, licensed in New York (106798) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699878587
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameSTEPHEN ROBERT GREENBERGCredential: M.D.
Location Address233 UNION AVENUE, SUITE 104/105Holbrook, NY 11741-1820
Mailing Address260 E Middle Country Rd, Suite 201Smithtown, NY 11787-2982 · (631) 265-8780 · Fax (631) 265-8521
Phone(631) 285-7311
Sole ProprietorNo
Enumeration DateSeptember 6, 2006
Last NPPES UpdateFebruary 9, 2015
✔ NPI 1699878587 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
License✔ Licensed in NY · 106798
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.
Also ListedTechnician/Technologist · OphthalmicTaxonomy 156FX1100X · License 106798 (NY)
233 UNION AVENUE, Holbrook, NY 11741
Open in Google Maps ↗

Other Identifiers 1

Medicaid00187595NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Stephen Robert Greenberg M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Stephen Greenberg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sight Medical Doctors PLLC
8.1 mi
Ophthalmology
125 KENNEDY DR STE 400
Hauppauge, NY 11788
  • Reassigned Medicare billing, New York enrollment
  • 164 clinicians in this Medicare group
NPI 1487077483 (855) 295-4144

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11741 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Stephen Greenberg's NPI number?

The NPI number for Stephen Greenberg is 1699878587. It was assigned to this individual provider in the NPPES registry on September 6, 2006.

Where is Stephen Greenberg located?

Stephen Greenberg practices at 233 Union Avenue Suite 104/105, Holbrook, NY 11741. The listed phone number is (631) 285-7311.

What is Stephen Greenberg's specialty?

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

Is Stephen Greenberg enrolled in Medicare?

Yes. Stephen Greenberg is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephen Greenberg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Greenberg reassigns Medicare benefits to Sight Medical Doctors PLLC (Hauppauge, NY). The 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 Stephen Greenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Stephen Greenberg was last updated on February 9, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.