NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1750375580 D.O.
Verify on CMS → Da-Thuy Van, D.O.
Ophthalmology Physician in Galveston, 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 22,388 in Ophthalmology Physician, 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
2K
Medicare Part D claims · 693 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Da-Thuy Van, D.O. filed 2,027 Medicare Part D claims in 2024 as an Ophthalmology Physician in Galveston, Texas, prescribing 78% generic.
- 2K
- Part D claims, 2024
- 78%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥84th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Da-Thuy Van, D.O.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1750375580), first enumerated 09/08/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,027 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Da-Thuy Van, D.O.'s individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1750375580 · Ophthalmology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1750375580
- ENUM-LEGACY 2005
- TAX-MID 22K Ophthalmology Physician
- RX-MID 2,027
- BOOK-LIGHT 1,439 in Texas
- PHOTO-ENUM Carrie Golden-Brenne… · 2005
Da-Thuy Van, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
2,027 ≥ 84th percentile 84% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Da-Thuy Van, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Da-Thuy Van, D.O.?
Quality data not reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
2,027 36% vs specialty avg
Specialty distribution in Texas
How Ophthalmology Physician 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 Ophthalmology Physician. 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).
Practice Address
Provider Details
| NPI | 1750375580 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 09/08/2005 |
Hospital and facility affiliations
Facilities where Da-Thuy Van, D.O. 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.
Permanente Medical Group Inc
Vallejo, CA
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 - 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 Da-Thuy Van, D.O.. To verify Da-Thuy Van, D.O.'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 · Typical
Da-Thuy Van, D.O. - brand share 22.0%
Ophthalmology Physician average
22% brand-name claims vs 78% generic, on 2,027 2024 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 2024.
2,027
Total Claims
$89K
Total Drug Cost
693
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,585.6
- Total Day Supply
- 133,880
- Brand vs Generic
- 22% brand / 78% generic
- Brand Drug Cost
- $56K
- Generic Drug Cost
- $33K
Patient Demographics
- Average Patient Age
- 77.5 years
- Avg HCC Risk Score
- 1.27
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 14, 65-74: 243, 75-84: 307, 85+: 129
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Da-Thuy Van, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
642 claims
- Dorzolamide-Timolol
Dorzolamide-Timolol
316 claims
- Prednisolone Acetate
Prednisolone Acetate
261 claims
- Brimonidine Tartrate 173
Brimonidine Tartrate
173 claims
- Timolol Maleate 161
Timolol Maleate
161 claims
- Cyclosporine 93
Cyclosporine
93 claims
- Dorzolamide Hcl 61
Dorzolamide Hcl
61 claims
- Diclofenac Sodium 35
Diclofenac Sodium
35 claims
| Drug | Claims |
|---|---|
| Latanoprost | 642 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 316 |
| Prednisolone Acetate | 261 |
| Brimonidine Tartrate | 173 |
| Timolol Maleate | 161 |
| Cyclosporine | 93 |
| Dorzolamide Hcl | 61 |
| Diclofenac Sodium | 35 |
| Brinzolamide | 33 |
| Erythromycin Erythromycin Base | 30 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Da-Thuy Van, D.O. fits within the Ophthalmology Physician landscape nationally.
22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider
Da-Thuy Van, D.O.'s 2,027 claims are above the specialty average of 1,490.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Van, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmology Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Van.
One of 1,439 Ophthalmology Physician providers enrolled in Texas, 5 are shown here.
Dr. Justin Aaker
MD
Georgetown, TX
Dr. Asad Abbas
M.D.
Baytown, TX
Dr. Ashkan Abbey
M.D.
Dallas, TX
Dr. Meredith Abbott
MD
Dallas, TX
Dr. Musa Abdelaziz
MD
Southlake, TX
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Da-Thuy Van, D.O.'s specialty? ▼
Da-Thuy Van, D.O. specializes in Ophthalmology Physician and practices in Galveston, Texas. Credentials: D.O..
How much does Da-Thuy Van, D.O. prescribe under Medicare Part D? ▼
In 2024, Da-Thuy Van, D.O. wrote 2,027 Medicare Part D claims totaling $89K in drug costs for 693 beneficiaries.
Where is Da-Thuy Van, D.O. located? ▼
Da-Thuy Van, D.O. is located at 2302 AVENUE P, Galveston, TX, 77550. Phone: (409) 765-6324.
What is Da-Thuy Van, D.O.'s NPI number? ▼
Da-Thuy Van, D.O.'s National Provider Identifier (NPI) is 1750375580, issued on 09/08/2005.
Does Da-Thuy Van, D.O. prescribe more brand-name or generic drugs? ▼
Da-Thuy Van, D.O.'s prescribing is 22% brand-name and 78% generic drugs by claim count, with $56K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does Da-Thuy Van, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Da-Thuy Van, D.O.'s most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Da-Thuy Van, D.O. accept Medicare? ▼
Da-Thuy Van, D.O. appears in CMS Medicare data with 2,027 Part D claims and 693 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Da-Thuy Van, D.O.'s credentials? ▼
Da-Thuy Van, D.O.'s NPI is 1750375580 with credentials D.O.. 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.