William Riggs, M. D.
NPI 1538193230 · Ophthalmology Physician · Bryan, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Riggs, M. D. is a Ophthalmology Physician provider in Bryan, TX (NPI 1538193230).
Provider details
- NPI number
- 1538193230
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- No
- License
- M3711 (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
3,764 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 | 896 | $119 |
| Imaging of Retina92134 | 410 | $38 |
| Insertion of Drug Delivery Implant Into Tear Duct of Eye68841 | 343 | $16 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 320 | $37 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 314 | $54 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 294 | $475 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 532 | 157 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 276 | 75 |
| Brimonidine Tartrate | 127 | 33 |
| Prednisolone Acetate | 113 | 84 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 65 | 14 |
| Lifitegrastbrand: Xiidra | 65 | 28 |
| Bimatoprostbrand: Lumigan | 50 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,127 across 33 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
- 2006-07-10
- Last updated
- 2020-09-23
- Certified
- 2020-09-23
Frequently asked questions
- What is William Riggs's NPI number?
- William Riggs's National Provider Identifier (NPI) is 1538193230, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Riggs's specialty?
- William Riggs is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Riggs located?
- William Riggs's practice location on file with NPPES is 3811 Sagebriar Dr, Bryan, TX 77802-6107.
- What is William Riggs's phone number?
- The practice phone number listed in the NPPES registry for William Riggs is (979) 774-0498.
- Does William Riggs accept Medicare?
- William Riggs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Riggs's NPI active?
- Yes — William Riggs's NPI (1538193230) is active in the NPPES registry as of the last update on 2020-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.