MARK L. GREENBERG O.D.
NPI 1124008586
Optometrist in Pearl River, NY

Q: What is Mark Greenberg's NPI number?

The NPI number for Mark Greenberg is 1124008586. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Q: What is Mark Greenberg's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Greenberg was last updated on October 27, 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.

Active since January 20, 2006PECOS Enrolled

275 N MIDDLETOWN RD, SUITE 2B, PEARL RIVER, NY 10965(845) 735-5757 Get Directions Write a Review

NPPES record last updated: October 27, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Mark L. Greenberg O.d. NPPES

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

MARK L. GREENBERG O.D. (NPI 1124008586) is an individual optometrist in Pearl River, New York, licensed in New York (3359) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124008586

Entity TypeIndividualMale

Primary Taxonomy152W00000X

Provider Legal NameMARK L. GREENBERGCredential: O.D.

Location Address275 N MIDDLETOWN RD, SUITE 2BPearl River, NY 10965-1188

Mailing Address275 N Middletown Rd, Suite 2bPearl River, NY 10965-1188 · (845) 735-5757

Phone(845) 735-5757

Sole ProprietorNo

Enumeration DateJanuary 20, 2006

Last NPPES UpdateOctober 27, 2008

✔ NPI 1124008586 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

License✔ Licensed in NY · 3359

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

275 N MIDDLETOWN RD, Pearl River, NY 10965

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Other Identifiers 8

Other132884816NY · Tax Id Number

Other90603NY · Aetna

Medicare PINC26311NY

OtherP835132NY · Oxford

OtherC26312NY · Bcbs

Other1C7777NY · Healthnet

Medicare NSC0964080001

Medicare UPIND72547NY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Wyoming.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark L. Greenberg O.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 Mark Greenberg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Flynn Optometry PLLC

1.3 mi

Optometrist

275 N MIDDLETOWN RD, SUITE 2 B
Pearl River, NY 10965

Reassigned Medicare billing, New York enrollment
4 clinicians in this Medicare group

NPI 1457695033 (845) 735-5757

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 10965 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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JOSEPH SCALA DMD

Dentist (General Practice)

275 N MIDDLETOWN RD
PEARL RIVER, NY 10965

Rockland County (845) 735-0195

ERICA MORGO

Art Therapist

275 N MIDDLETOWN RD
PEARL RIVER, NY 10965

Rockland County (845) 393-2188

DR. MARK GREENBERG

Optometrist

275 N MIDDLETOWN RD
PEARL RIVER, NY 10965

Rockland County (845) 735-5757

ROCKLAND ENDOCRINOLOGY, PC

Exclusive Provider Organization

275 N MIDDLETOWN RD, SUITE 1-H
PEARL RIVER, NY 10965

Rockland County (845) 620-0220

AMY HEIMOWITZ

Art Therapist

275 N MIDDLETOWN RD
PEARL RIVER, NY 10965

Rockland County (845) 793-6630

CAROL PARAS M.D.

Psychiatry & Neurology (Psychiatry)

275 N MIDDLETOWN RD, SUITE 1 D
PEARL RIVER, NY 10965

Rockland County (845) 735-4700

CAROL PARAS, MD, PC.

Psychiatry & Neurology (Psychiatry)

275 N MIDDLETOWN RD
PEARL RIVER, NY 10965

Rockland County (845) 735-4700

MS. DEBORAH A A KING I LCAT, ATR-BC

Art Therapist

275 N MIDDLETOWN RD
PEARL RIVER, NY 10965

Rockland County (845) 641-8232

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 Greenberg's NPI number?

The NPI number for Mark Greenberg is 1124008586. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Where is Mark Greenberg located?

Mark Greenberg practices at 275 N Middletown Rd Suite 2B, Pearl River, NY 10965. The listed phone number is (845) 735-5757.

What is Mark Greenberg's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Mark Greenberg enrolled in Medicare?

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

Which organization bills Medicare for Mark Greenberg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Greenberg reassigns Medicare benefits to Flynn Optometry PLLC (Pearl River, 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 Mark Greenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Greenberg accept?

Health plans from Blue Cross Blue Shield of Wyoming list Mark Greenberg as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mark Greenberg was last updated on October 27, 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.