William Southerland, O. D.
NPI 1821325333 · Optometrist · Greenville, SC
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Southerland, O. D. is a Optometrist provider in Greenville, SC (NPI 1821325333).
Provider details
- NPI number
- 1821325333
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O. D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1580 (SC)
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
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
11 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
746 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 Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 195 | $116 |
| Photography of the Retina92250 | 129 | $32 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 117 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 86 | $84 |
| Microfluid Analysis of Tears83861 | 84 | $22 |
| Imaging of Retina92134 | 55 | $37 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 27 | 15 |
| Prednisolone Acetate | 25 | 22 |
| Bimatoprostbrand: Lumigan | 13 | — |
| Timolol Maleate | 13 | — |
| Cyclosporinebrand: Restasis | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$540 across 11 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
Additional practice locations (10)
- 2011 E Greenville StAnderson, SC 29621-1529Phone: (864) 654-6706
- 931 Tiger BlvdClemson, SC 29631-1419Phone: (864) 654-6706
- 22995 US Highway 76Clinton, SC 29325-7529Phone: (864) 654-6706
- 15 Southern Center CtEasley, SC 29642-1533Phone: (864) 654-6706
- 360 Pelham RdGreenville, SC 29615-3111Phone: (864) 654-6706
- 317 the PkwyGreer, SC 29650-4569Phone: (964) 654-6706
- 317 the PkwyGreer, SC 29650-4569Phone: (964) 654-6706
- 2735 Winnsboro RdNewberry, SC 29108-4011Phone: (864) 654-6706
- 273 Harrison Bridge RdSimpsonville, SC 29680-7132Phone: (864) 654-6706
Registry dates
- Enumerated
- 2009-11-05
- Last updated
- 2026-06-03
- Certified
- 2026-06-03
Frequently asked questions
- What is William Southerland's NPI number?
- William Southerland's National Provider Identifier (NPI) is 1821325333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Southerland's specialty?
- William Southerland is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is William Southerland located?
- William Southerland's practice location on file with NPPES is 1 Halton Green Way, Greenville, SC 29607-6606.
- What is William Southerland's phone number?
- The practice phone number listed in the NPPES registry for William Southerland is (864) 654-6706.
- Does William Southerland accept Medicare?
- William Southerland is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Southerland's NPI active?
- Yes — William Southerland's NPI (1821325333) is active in the NPPES registry as of the last update on 2026-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.