William Helwig, M.D.
NPI 1275533564 · Ophthalmology Physician · Warren, OH
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Helwig, M.D. is a Ophthalmology Physician provider in Warren, OH (NPI 1275533564).
Provider details
- NPI number
- 1275533564
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35055186 (OH)
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
4,633 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) |
|---|---|---|
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 3,070 | $1 |
| Established Patient Complete Exam of Visual System92014 | 529 | $110 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 342 | $113 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 201 | $80 |
| Photography of the Retina92250 | 163 | $32 |
| Established Patient Problem Focused Exam of Visual System92012 | 148 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 565 | 163 |
| Prednisolone Acetate | 224 | 170 |
| Erythromycin Basebrand: Erythromycin | 218 | 119 |
| Bimatoprostbrand: Lumigan | 133 | 37 |
| Brimonidine Tartrate | 113 | 28 |
| Cyclosporinebrand: Restasis | 108 | 52 |
| Cyclosporine | 79 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$309 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
Registry dates
- Enumerated
- 2005-07-28
- Last updated
- 2017-03-30
Frequently asked questions
- What is William Helwig's NPI number?
- William Helwig's National Provider Identifier (NPI) is 1275533564, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Helwig's specialty?
- William Helwig is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is William Helwig located?
- William Helwig's practice location on file with NPPES is 2625 E Market St, Warren, OH 44483-6203.
- What is William Helwig's phone number?
- The practice phone number listed in the NPPES registry for William Helwig is (330) 393-4000.
- Does William Helwig accept Medicare?
- William Helwig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Helwig's NPI active?
- Yes — William Helwig's NPI (1275533564) is active in the NPPES registry as of the last update on 2017-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.