NPI registry status
Active
2026 NPPES data Vision Therapy Optometrist NPI 1306199328 O.D.
Verify on CMS → David Chau, O.D.
Vision Therapy Optometrist in Sugar Land, 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 368 in Vision Therapy 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
62
Medicare Part D claims · 23 beneficiaries · Vision Therapy Optometrist avg: 209
Generic prescribing
35%
generic claims · 65% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.3K
16 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
David Chau, O.D. filed 62 Medicare Part D claims in 2023 as a Vision Therapy Optometrist in Sugar Land, Texas, prescribing 35% generic.
- 62
- Part D claims, 2023
- 35%
- generic prescribing
- $1.3K
- 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.
David Chau, O.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
62 0th percentile higher than 0% of 1,370,886 prescribers
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 David Chau, O.D.?
Quality data not reportedPrimary specialty
Vision Therapy Optometrist
Medicare Part D claims
62 70% vs specialty avg
Specialty distribution in Texas
How Vision Therapy Optometrist compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Vision Therapy Optometrist. Verify directly:
How MIPS and board certification work
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).
David Chau, O.D. appears in the CMS NPPES registry as a Vision Therapy Optometrist provider holding O.D. credentials at 19875 SOUTHWEST FWY STE 180, Sugar Land, TX, 77479, with a listed phone of (718) 458-0713. NPI 1306199328 was issued on 10/16/2012.
Medicare Part D records for calendar year 2023 show 62 prescription claims written by this provider, covering 23 Medicare beneficiaries and totaling roughly $246K in drug spend, split 65% brand-name and 35% generic by claim count.
Vision Therapy Optometrist is a narrow specialty nationwide, with 368 enrolled providers across 42 states and an average of 209 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
Provider Details
| NPI | 1306199328 |
|---|---|
| Specialty | Vision Therapy Optometrist |
| Credentials | O.D. |
| Gender | Male |
| NPI Issued | 10/16/2012 |
Hospital and facility affiliations
Facilities where David Chau, 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.
Evolutionary Eye Care
Sugar Land, TX
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 David Chau, O.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.3K
Largest payer
Bausch & Lomb Americas 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 - 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 David Chau, O.D.. To verify David Chau, 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 · Brand-heavy
David Chau, O.D. - brand share 65.0%
Vision Therapy Optometrist average
65% brand-name claims vs 35% generic, on 62 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.
62
Total Claims
$246K
Total Drug Cost
23
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 108
- Total Day Supply
- 2,925
- Brand vs Generic
- 65% brand / 35% generic
- Brand Drug Cost
- $246K
- Generic Drug Cost
- $385
Patient Demographics
- Average Patient Age
- 69.8 years
- Avg HCC Risk Score
- 1.42
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Latanoprost | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Vision Therapy Optometrist Overview
How David Chau, O.D. fits within the Vision Therapy Optometrist landscape nationally.
368
Vision Therapy Optometrist Providers in US
42
States with Vision Therapy Optometrist
209
Avg Claims per Provider
David Chau, O.D.'s 62 claims are below the specialty average of 209.
Nearby Vision Therapy Optometrist Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Chau.
Dr. Abdulla Al-Amri
OD, MS, FAAO
Corpus Christi, TX
Dr. Eric Ball
O.D.
Argyle, TX
Dr. Juan Barajas
O.D.
Mission, TX
Dr. Timothy Bowers
O.D.
Fort Worth, TX
Dr. James Citek
O D
Angleton, TX
Compare Vision Therapy 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 Vision Therapy 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.
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Frequently Asked Questions
What is David Chau, O.D.'s specialty? ▼
David Chau, O.D. specializes in Vision Therapy Optometrist and practices in Sugar Land, Texas. Credentials: O.D..
How much does David Chau, O.D. prescribe under Medicare Part D? ▼
In 2023, David Chau, O.D. wrote 62 Medicare Part D claims totaling $246K in drug costs for 23 beneficiaries.
Where is David Chau, O.D. located? ▼
David Chau, O.D. is located at 19875 SOUTHWEST FWY STE 180, Sugar Land, TX, 77479. Phone: (718) 458-0713.
What is David Chau, O.D.'s NPI number? ▼
David Chau, O.D.'s National Provider Identifier (NPI) is 1306199328, issued on 10/16/2012.
Does David Chau, O.D. prescribe more brand-name or generic drugs? ▼
David Chau, O.D.'s prescribing is 65% brand-name and 35% generic drugs by claim count, with $246K in brand drug costs.
How many Vision Therapy Optometrist providers are there in the US? ▼
There are 368 Vision Therapy Optometrist providers across 42 states in the US. The average Vision Therapy Optometrist provider writes 209 Medicare Part D claims per year.
What drugs does David Chau, O.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, David Chau, O.D.'s most frequently prescribed drugs include Latanoprost. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Chau, O.D. accept Medicare? ▼
David Chau, O.D. appears in CMS Medicare data with 62 Part D claims and 23 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Chau, O.D.'s credentials? ▼
David Chau, O.D.'s NPI is 1306199328 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
View source datasets and methodology notes
- 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.