Gregory Bittner, OD
NPI 1134191448 · Optometrist · Allison Park, PA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Bittner, OD is a Optometrist provider in Allison Park, PA (NPI 1134191448).
Provider details
- NPI number
- 1134191448
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Male
- Sole proprietor
- No
- License
- OEG000486 (PA)
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
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
295 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 | 156 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 74 | $86 |
| Imaging of Optic Nerve92133 | 37 | $34 |
| Imaging of Retina92134 | 28 | $38 |
Typical Medicare-allowed amounts for these services range $34–$118 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 213 | 46 |
| Bimatoprostbrand: Lumigan | 44 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 26 | — |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 22 | 20 |
| Brimonidine Tartrate/Timololbrand: Brimonidine Tartrate-Timolol | 18 | — |
| Timolol Maleate | 17 | — |
| Cyclosporine | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$201 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
- 2006-02-02
- Last updated
- 2012-11-07
Frequently asked questions
- What is Gregory Bittner's NPI number?
- Gregory Bittner's National Provider Identifier (NPI) is 1134191448, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Bittner's specialty?
- Gregory Bittner is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gregory Bittner located?
- Gregory Bittner's practice location on file with NPPES is 2384 Ferguson Rd, Allison Park, PA 15101-3550.
- What is Gregory Bittner's phone number?
- The practice phone number listed in the NPPES registry for Gregory Bittner is (412) 486-1043.
- Does Gregory Bittner accept Medicare?
- Gregory Bittner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Bittner's NPI active?
- Yes — Gregory Bittner's NPI (1134191448) is active in the NPPES registry as of the last update on 2012-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.