Constantine Balouris, MD
NPI 1851478531 · Ophthalmology Physician · Butler, PA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Constantine Balouris, MD is a Ophthalmology Physician provider in Butler, PA (NPI 1851478531).
Provider details
- NPI number
- 1851478531
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- BB4299447 (PA)
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
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
1,700 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 | 386 | $124 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 240 | $497 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 235 | $40 |
| Imaging of Retina92134 | 217 | $39 |
| Established Patient Problem Focused Exam of Visual System92012 | 163 | $88 |
| New Patient Complete Exam of Visual System92004 | 152 | $146 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 1,264 | 823 |
| Ciprofloxacin Hcl | 1,227 | 806 |
| Latanoprost | 1,017 | 213 |
| Timolol Maleate | 303 | 89 |
| Ketorolac Tromethamine | 250 | 203 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 207 | 48 |
| Brimonidine Tartrate | 201 | 67 |
| Bimatoprost |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$189 across 8 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
- 2006-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Constantine Balouris's NPI number?
- Constantine Balouris's National Provider Identifier (NPI) is 1851478531, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Constantine Balouris's specialty?
- Constantine Balouris is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Constantine Balouris located?
- Constantine Balouris's practice location on file with NPPES is 102 Technology Dr, Butler, PA 16001-1782.
- What is Constantine Balouris's phone number?
- The practice phone number listed in the NPPES registry for Constantine Balouris is (724) 482-0090.
- Does Constantine Balouris accept Medicare?
- Constantine Balouris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Constantine Balouris's NPI active?
- Yes — Constantine Balouris's NPI (1851478531) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.