William Johnson, MD
NPI 1376506774 · Ophthalmology Physician · Columbia, SC
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Johnson, MD is a Ophthalmology Physician provider in Columbia, SC (NPI 1376506774).
Provider details
- NPI number
- 1376506774
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 23668 (SC)
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
4,109 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 | 1,364 | $121 |
| Established Patient Problem Focused Exam of Visual System92012 | 580 | $86 |
| Imaging of Optic Nerve92133 | 539 | $35 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 440 | $125 |
| Exam of Visual Field With Extended Testing92083 | 348 | $61 |
| Imaging of Retina92134 | 217 | $38 |
| Measurement of Corneal Curvature and Depth of Eye |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 674 | 195 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 252 | 70 |
| Prednisolone Acetate | 181 | 124 |
| Bimatoprostbrand: Lumigan | 162 | 40 |
| Travoprost | 147 | 37 |
| Timolol Maleate | 112 | 28 |
| Moxifloxacin Hclbrand: Moxifloxacin | 87 | 64 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$54 across 3 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
- 2006-04-08
- Last updated
- 2020-08-17
- Certified
- 2020-08-17
Frequently asked questions
- What is William Johnson's NPI number?
- William Johnson's National Provider Identifier (NPI) is 1376506774, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Johnson's specialty?
- William Johnson is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Johnson located?
- William Johnson's practice location on file with NPPES is 100 Summit Centre Dr, Columbia, SC 29229.
- What is William Johnson's phone number?
- The practice phone number listed in the NPPES registry for William Johnson is (803) 252-8566.
- Does William Johnson accept Medicare?
- William Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Johnson's NPI active?
- Yes — William Johnson's NPI (1376506774) is active in the NPPES registry as of the last update on 2020-08-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.