Mark Roy, OD
NPI 1851360424 · Optometrist · Thibodaux, LA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Roy, OD is a Optometrist provider in Thibodaux, LA (NPI 1851360424).
Provider details
- NPI number
- 1851360424
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- 1354-488T (LA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
311 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Complete Exam of Visual System92014 | 122 | $115 |
| Established Patient Problem Focused Exam of Visual System92012 | 113 | $81 |
| Exam of Visual Field With Extended Testing92083 | 25 | $57 |
| Imaging of Optic Nerve92133 | 20 | $33 |
| New Patient Complete Exam of Visual System92004 | 18 | $136 |
| Imaging of Retina92134 | 13 | $37 |
Typical Medicare-allowed amounts for these services range $33–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 237 | 50 |
| Timolol Maleate | 46 | 11 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 33 | — |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 27 | — |
| Bimatoprostbrand: Lumigan | 27 | — |
| Latanoprostene Bunodbrand: Vyzulta | 16 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$847 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-16
- Last updated
- 2021-07-21
- Certified
- 2021-07-21
Frequently asked questions
- What is Mark Roy's NPI number?
- Mark Roy's National Provider Identifier (NPI) is 1851360424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Roy's specialty?
- Mark Roy is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Mark Roy located?
- Mark Roy's practice location on file with NPPES is 640 Saint Charles St, Thibodaux, LA 70301-3422.
- What is Mark Roy's phone number?
- The practice phone number listed in the NPPES registry for Mark Roy is (985) 446-1717.
- Does Mark Roy accept Medicare?
- Mark Roy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Roy's NPI active?
- Yes — Mark Roy's NPI (1851360424) is active in the NPPES registry as of the last update on 2021-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.