2026 NPPES data Optometrist NPI 1861588790 O.D.
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NIKKI ROOK, O.D.

Optometrist in CANTON, Pennsylvania. 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
292
Medicare Part D claims · 67 beneficiaries · Optometrist avg: 257
Generic prescribing
53%
generic claims · 47% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$204.01
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

NIKKI ROOK, O.D. filed 292 Medicare Part D claims in 2023 as a Optometrist in CANTON, Pennsylvania, prescribing 53% generic.

292
Part D claims, 2023
53%
generic prescribing
$204.01
industry payments (Sunshine Act)

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.

NIKKI ROOK, O.D.'s Medicare Part D volume vs every U.S. prescriber

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

292 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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 NIKKI ROOK, O.D.?

Quality data not reported

NPI registry status

Active

Issued 10/05/2006

NPI 1861588790

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

292 14% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Pennsylvania

How Optometrist compares to other specialties among Pennsylvania providers

Pennsylvania providers

Optometrist share within Pennsylvania

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

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).

NIKKI ROOK, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 327 SPRINGBROOK DR, CANTON, PA, 17724, with a listed phone of (570) 673-8390. NPI 1861588790 was issued on 10/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ROOK 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 292 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $54K in drug spend, split 47% brand-name and 53% 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

327 SPRINGBROOK DR
CANTON, PA 17724

Provider Details

NPI 1861588790
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 10/05/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for NIKKI ROOK, O.D.. Source: openpaymentsdata.cms.gov.

Total received

$204

Largest payer

BIOTISSUE HOLDINGS INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to NIKKI ROOK, O.D.. To verify NIKKI ROOK, O.D.'s current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

NIKKI ROOK, O.D. — brand share 47.0%
Specialty average (est.)

47% brand-name claims vs 53% generic, on 292 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.

292
Total Claims
$54K
Total Drug Cost
67
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
428
Total Day Supply
11,415
Brand vs Generic
47% brand / 53% generic
Brand Drug Cost
$47K
Generic Drug Cost
$7K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
1.12
Gender Split
64% female / 36% male

Top Prescribed Drugs (Medicare Part D)

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

What NIKKI ROOK, O.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Latanoprost
78
Dorzolamide Hcl
21
Lumigan
Bimatoprost
21
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
20
Timolol Maleate
20
Restasis
Cyclosporine
19
Cyclosporine
18
Brinzolamide
15
Travoprost
12

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

Optometrist Overview

How NIKKI ROOK, O.D. fits within the Optometrist landscape nationally.

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

NIKKI ROOK, O.D.'s 292 claims are above the specialty average of 257.

Nearby Optometrist Providers in Pennsylvania

Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as ROOK.

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

Frequently Asked Questions

What is NIKKI ROOK, O.D.'s specialty?
NIKKI ROOK, O.D. specializes in Optometrist and practices in CANTON, Pennsylvania. Credentials: O.D..
How much does NIKKI ROOK, O.D. prescribe under Medicare Part D?
In 2023, NIKKI ROOK, O.D. wrote 292 Medicare Part D claims totaling $54K in drug costs for 67 beneficiaries.
Where is NIKKI ROOK, O.D. located?
NIKKI ROOK, O.D. is located at 327 SPRINGBROOK DR, CANTON, PA, 17724. Phone: (570) 673-8390.
What is NIKKI ROOK, O.D.'s NPI number?
NIKKI ROOK, O.D.'s National Provider Identifier (NPI) is 1861588790, issued on 10/05/2006.
Does NIKKI ROOK, O.D. prescribe more brand-name or generic drugs?
NIKKI ROOK, O.D.'s prescribing is 47% brand-name and 53% generic drugs by claim count, with $47K 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 NIKKI ROOK, O.D. prescribe most often?
Based on 2023 Medicare Part D data, NIKKI ROOK, O.D.'s most frequently prescribed drugs include Latanoprost, Dorzolamide Hcl, Lumigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NIKKI ROOK, O.D. accept Medicare?
NIKKI ROOK, O.D. appears in CMS Medicare data with 292 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NIKKI ROOK, O.D.'s credentials?
NIKKI ROOK, O.D.'s NPI is 1861588790 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