William Williamson, MD
NPI 1114924560 · Ophthalmology Physician · Baton Rouge, LA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Williamson, MD is a Ophthalmology Physician provider in Baton Rouge, LA (NPI 1114924560).
Provider details
- NPI number
- 1114924560
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 012044 (LA)
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
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
717 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 | 209 | $117 |
| Microfluid Analysis of Tears83861 | 120 | $22 |
| Imaging of Retina92134 | 116 | $37 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 75 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 63 | $86 |
| Imaging of Optic Nerve92133 | 42 | $34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 481 | 132 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 192 | 58 |
| Cyclosporinebrand: Restasis | 175 | 67 |
| Brimonidine Tartrate/Timololbrand: Combigan | 64 | 11 |
| Prednisolone Acetate | 57 | 48 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 53 | 39 |
| Bimatoprostbrand: Lumigan |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$326 across 5 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
- 2005-06-30
- Last updated
- 2011-06-27
Frequently asked questions
- What is William Williamson's NPI number?
- William Williamson's National Provider Identifier (NPI) is 1114924560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Williamson's specialty?
- William Williamson is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Williamson located?
- William Williamson's practice location on file with NPPES is 550 Connells Park Ln, Baton Rouge, LA 70806-6539.
- What is William Williamson's phone number?
- The practice phone number listed in the NPPES registry for William Williamson is (225) 924-2020.
- Does William Williamson accept Medicare?
- William Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Williamson's NPI active?
- Yes — William Williamson's NPI (1114924560) is active in the NPPES registry as of the last update on 2011-06-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.