William Segal, M.D.
NPI 1275698516 · Ophthalmology Physician · Duluth, GA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Segal, M.D. is a Ophthalmology Physician provider in Duluth, GA (NPI 1275698516).
Provider details
- NPI number
- 1275698516
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 50261 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3,083 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 | 510 | $126 |
| Photography of the Retina92250 | 478 | $36 |
| Established Patient Problem Focused Exam of Visual System92012 | 399 | $89 |
| Exam of Visual Field With Extended Testing92083 | 340 | $64 |
| Imaging of Retina92134 | 240 | $40 |
| Imaging of Optic Nerve92133 | 226 | $35 |
| Measurement of Corneal Curvature and Depth of Eye92136 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 498 | 171 |
| Timolol Maleate | 198 | 75 |
| Brimonidine Tartrate | 155 | 68 |
| Azelastine Hcl | 98 | 43 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 88 | 27 |
| Prednisolone Acetate | 80 | 68 |
| Erythromycin Basebrand: Erythromycin | 73 | 52 |
| Lifitegrast |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,082 across 31 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
- 2006-12-27
- Last updated
- 2019-10-31
Frequently asked questions
- What is William Segal's NPI number?
- William Segal's National Provider Identifier (NPI) is 1275698516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Segal's specialty?
- William Segal is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Segal located?
- William Segal's practice location on file with NPPES is 3800 Pleasant Hill Rd, Duluth, GA 30096-1428.
- What is William Segal's phone number?
- The practice phone number listed in the NPPES registry for William Segal is (678) 584-0400.
- Does William Segal accept Medicare?
- William Segal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Segal's NPI active?
- Yes — William Segal's NPI (1275698516) is active in the NPPES registry as of the last update on 2019-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.