2026 NPPES data Optometrist NPI 1376831842 O.D.
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Hailey Willis, O.D.

Optometrist in Greenville, Texas. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 60,463 in Optometrist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
190
Medicare Part D claims · 72 beneficiaries · Optometrist avg: 257
Generic prescribing
53%
generic claims · 47% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$53.17
3 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Hailey Willis, O.D. filed 190 Medicare Part D claims in 2023 as a Optometrist in Greenville, Texas, prescribing 53% generic.

190
Part D claims, 2023
53%
generic prescribing
$53.17
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.

Hailey Willis, O.D.'s Medicare Part D volume vs every U.S. prescriber

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

190 35th percentile higher than 35% 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 Hailey Willis, O.D.?

Quality data not reported

NPI registry status

Active

Issued 07/18/2011

NPI 1376831842

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

190 26% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Texas

How Optometrist compares to other specialties among Texas providers

Texas providers

Largest specialties in Texas (% of in-state providers)

Behavior Technician — 5.6%Behavior Technician5.6%Student in an Organized Health Care Education/Training Program — 5.1%Student in an Organized Health Care Education/Training Program5.1%Family Nurse Practitioner — 4.5%Family Nurse Practitioner4.5%Professional Counselor — 4.4%Professional Counselor4.4%Pharmacist — 4.4%Pharmacist4.4%Speech-Language Pathologist — 3.9%Speech-Language Pathologist3.9%Optometrist — 1.1%Optometrist1.1%
Largest specialties in Texas (% of in-state providers)

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).

Hailey Willis, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 5200 WESLEY ST, Greenville, TX, 75402, with a listed phone of (903) 455-0294. NPI 1376831842 was issued on 07/18/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Willis 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 190 prescription claims written by this provider, covering 72 Medicare beneficiaries and totaling roughly $38K 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

5200 WESLEY ST
Greenville, TX 75402

Provider Details

NPI 1376831842
Specialty Optometrist
Credentials O.D.
Gender Female
NPI Issued 07/18/2011

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 Hailey Willis, O.D.. Source: openpaymentsdata.cms.gov.

Total received

$53

Largest payer

Alcon Vision LLC

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 — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to Hailey Willis, O.D.. To verify Hailey Willis, O.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Above average

Hailey Willis, O.D. — brand share 47.0%
Optometrist average

47% brand-name claims vs 53% generic, on 190 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.

190
Total Claims
$38K
Total Drug Cost
72
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
312
Total Day Supply
8,546
Brand vs Generic
47% brand / 53% generic
Brand Drug Cost
$33K
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
1.11
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 Hailey Willis, 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
59
Timolol Maleate
24
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
14

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

Optometrist Overview

How Hailey Willis, O.D. fits within the Optometrist landscape nationally.

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

Hailey Willis, O.D.'s 190 claims are below the specialty average of 257.

Nearby Optometrist Providers in Texas

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Texas medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Optometrist peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Hailey Willis, O.D.'s specialty?
Hailey Willis, O.D. specializes in Optometrist and practices in Greenville, Texas. Credentials: O.D..
How much does Hailey Willis, O.D. prescribe under Medicare Part D?
In 2023, Hailey Willis, O.D. wrote 190 Medicare Part D claims totaling $38K in drug costs for 72 beneficiaries.
Where is Hailey Willis, O.D. located?
Hailey Willis, O.D. is located at 5200 WESLEY ST, Greenville, TX, 75402. Phone: (903) 455-0294.
What is Hailey Willis, O.D.'s NPI number?
Hailey Willis, O.D.'s National Provider Identifier (NPI) is 1376831842, issued on 07/18/2011.
Does Hailey Willis, O.D. prescribe more brand-name or generic drugs?
Hailey Willis, O.D.'s prescribing is 47% brand-name and 53% generic drugs by claim count, with $33K 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 Hailey Willis, O.D. prescribe most often?
Based on 2023 Medicare Part D data, Hailey Willis, O.D.'s most frequently prescribed drugs include Latanoprost, Timolol Maleate, Neomycin-Polymyxin-Dexameth. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hailey Willis, O.D. accept Medicare?
Hailey Willis, O.D. appears in CMS Medicare data with 190 Part D claims and 72 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hailey Willis, O.D.'s credentials?
Hailey Willis, O.D.'s NPI is 1376831842 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

Compiled from official public sources by the PlainDoctor editorial team.