Thomas Marshall, MD
NPI 1376571687 · Ophthalmology Physician · Baytown, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Marshall, MD is a Ophthalmology Physician provider in Baytown, TX (NPI 1376571687).
Provider details
- NPI number
- 1376571687
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- H0603 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
1,145 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 | 333 | $116 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 271 | $23 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 139 | $483 |
| Imaging of Retina92134 | 88 | $36 |
| Established Patient Problem Focused Exam of Visual System92012 | 84 | $83 |
| Imaging of Optic Nerve92133 | 73 | $34 |
| New Patient Complete Exam of Visual System |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dexamethasone Sodium Phosphate | 489 | 324 |
| Ciprofloxacin Hcl | 445 | 316 |
| Latanoprost | 392 | 111 |
| Timolol Maleate | 204 | 60 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 92 | 33 |
| Bimatoprostbrand: Lumigan | 69 | 18 |
| Bromfenac Sodium | 61 | 47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$381 across 12 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
- 2006-06-28
- Last updated
- 2024-10-16
- Certified
- 2024-10-16
Frequently asked questions
- What is Thomas Marshall's NPI number?
- Thomas Marshall's National Provider Identifier (NPI) is 1376571687, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Marshall's specialty?
- Thomas Marshall is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Marshall located?
- Thomas Marshall's practice location on file with NPPES is 1025 Birdsong Dr Ste a, Baytown, TX 77521-3771.
- What is Thomas Marshall's phone number?
- The practice phone number listed in the NPPES registry for Thomas Marshall is (281) 422-2020.
- Does Thomas Marshall accept Medicare?
- Thomas Marshall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Marshall's NPI active?
- Yes — Thomas Marshall's NPI (1376571687) is active in the NPPES registry as of the last update on 2024-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.