2026 NPPES data Optometrist NPI 1366426504 O.D.
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KENNETH HOROWITZ, O.D.

Optometrist in STATEN ISLAND, New York. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
54
Medicare Part D claims · 25 beneficiaries · Optometrist avg: 257
Generic prescribing
43%
generic claims · 57% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KENNETH HOROWITZ, O.D. filed 54 Medicare Part D claims in 2023 as a Optometrist in STATEN ISLAND, New York, prescribing 43% generic.

54
Part D claims, 2023
43%
generic prescribing

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

KENNETH HOROWITZ, O.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

54 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about KENNETH HOROWITZ, O.D.?

Quality data not reported

NPI registry status

Active

Issued 12/01/2005

NPI 1366426504

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

54 79% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in New York

How Optometrist compares to other specialties among New York providers

New York providers

Optometrist share within New York

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within New York

Specialty board-certification context

Estimated specialty board-certified rate — Optometrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Optometrist ABMS/AOA estimate

Est. board-certified rate (Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Optometrist) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

KENNETH HOROWITZ, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 927 WILLOWBROOK RD, STATEN ISLAND, NY, 10314, with a listed phone of (718) 982-8790. NPI 1366426504 was issued on 12/01/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HOROWITZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 54 prescription claims written by this provider, covering 25 Medicare beneficiaries and totaling roughly $10K in drug spend, split 57% brand-name and 43% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

927 WILLOWBROOK RD
STATEN ISLAND, NY 10314

Provider Details

NPI 1366426504
Specialty Optometrist
Credentials O.D.
Gender Male
NPI Issued 12/01/2005

Hospital and facility affiliations

Facilities where KENNETH HOROWITZ, O.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

AHAVA MEDICAL AND REHABILITATION CENTER, LLC
BROOKLYN, NY

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — New York NYSBPMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 — they are NOT specific to KENNETH HOROWITZ, O.D.. To verify KENNETH HOROWITZ, O.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

KENNETH HOROWITZ, O.D. — brand share 57.0%
Specialty average (est.)

57% brand-name claims vs 43% generic, on 54 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

54
Total Claims
$10K
Total Drug Cost
25
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
71
Total Day Supply
1,467
Brand vs Generic
57% brand / 43% generic
Brand Drug Cost
$9K
Generic Drug Cost
$839

Patient Demographics

Average Patient Age
76.0 years
Avg HCC Risk Score
2.26
Gender Split
44% female / 56% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Tobradex St
Tobramycin/Dexamethasone
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Optometrist Overview

How KENNETH HOROWITZ, O.D. fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

KENNETH HOROWITZ, O.D.'s 54 claims are below the specialty average of 257.

Nearby Optometrist Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as HOROWITZ.

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is KENNETH HOROWITZ, O.D.'s specialty?
KENNETH HOROWITZ, O.D. specializes in Optometrist and practices in STATEN ISLAND, New York. Credentials: O.D..
How much does KENNETH HOROWITZ, O.D. prescribe under Medicare Part D?
In 2023, KENNETH HOROWITZ, O.D. wrote 54 Medicare Part D claims totaling $10K in drug costs for 25 beneficiaries.
Where is KENNETH HOROWITZ, O.D. located?
KENNETH HOROWITZ, O.D. is located at 927 WILLOWBROOK RD, STATEN ISLAND, NY, 10314. Phone: (718) 982-8790.
What is KENNETH HOROWITZ, O.D.'s NPI number?
KENNETH HOROWITZ, O.D.'s National Provider Identifier (NPI) is 1366426504, issued on 12/01/2005.
Does KENNETH HOROWITZ, O.D. prescribe more brand-name or generic drugs?
KENNETH HOROWITZ, O.D.'s prescribing is 57% brand-name and 43% generic drugs by claim count, with $9K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does KENNETH HOROWITZ, O.D. prescribe most often?
Based on 2023 Medicare Part D data, KENNETH HOROWITZ, O.D.'s most frequently prescribed drugs include Tobradex St. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KENNETH HOROWITZ, O.D. accept Medicare?
KENNETH HOROWITZ, O.D. appears in CMS Medicare data with 54 Part D claims and 25 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KENNETH HOROWITZ, O.D.'s credentials?
KENNETH HOROWITZ, O.D.'s NPI is 1366426504 with credentials O.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology