Gregory John Bittner, OD
- Medicare patients, 2024
- 198
- Part D claims, 2024
- 439
- Industry payments
- $15
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2384 Ferguson Rd, Allison Park, PA 15101-3550
- Practice phone
- Call (412) 486-1043
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bittner Vision Associates
Eye care practice · Allison Park, Pennsylvania
Find Gregory Bittner's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Gregory John Bittner is an optometrist in Allison Park, Pennsylvania
Gregory Bittner practices at Bittner Vision Associates in Allison Park, Pennsylvania.
Gregory Bittner's NPI, 1134191448, was assigned on February 2, 2006. Gregory Bittner graduated from Pennsylvania College of Optometry in 1981. Gregory Bittner holds Pennsylvania license OEG000486.
- NPI
- 1134191448NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072519693
- NPI enumeration date
- February 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (412) 486-1043
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Gregory John Bittner practices at Bittner Vision Associates in Allison Park, Pennsylvania
Gregory Bittner's primary practice is Bittner Vision Associates, at 2384 Ferguson Rd, Allison Park, PA 15101-3550. The practice phone is (412) 486-1043.
- Bittner Vision Associates2384 Ferguson Rd, Allison Park, PA 15101-3550Phone(412) 486-1043
Source: Dmand AI Affiliation Data
Gregory John Bittner is affiliated with 1 site of care and 1 medical group
Gregory Bittner's primary practice is Bittner Vision Associates in Allison Park, Pennsylvania. Dmand AI also links Gregory Bittner to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gregory John Bittner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Bittner practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bittner Vision Associates | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory John Bittner is one of 1,750 optometrists in Pennsylvania
Optometrist is Gregory Bittner's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Gregory Bittner is licensed in Pennsylvania.
Specialties and state licenses
- Optometrist, PennsylvaniaPrimary
Optometrists near Gregory Bittner
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Gregory John Bittner treated 198 Medicare patients in 2024, average age 75
CMS counts 198 Medicare patients who saw Gregory Bittner in 2024. The largest group is 65 to 74, with 107 patients. 75% of them have high cholesterol, and 70% have high blood pressure. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Gregory Bittner's median patient age at 76, with 58% women.
Gregory Bittner's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Gregory Bittner's Medicare patients by sex, 2024
- Women11558%
- Men8342%
Chronic conditions among Gregory Bittner's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis44%
- Diabetes24%
- Ischemic heart disease22%
- Anxiety21%
- Mood disorders20%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Gregory Bittner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gregory John Bittner wrote 439 Medicare Part D claims in 2024
In 2024, Gregory Bittner wrote 439 Medicare Part D claims for 103 patients. 69% of them were for generic drugs.
Gregory Bittner's Part D claims by kind of drug, 2024
- Generic304 claims69%
- Brand-name135 claims31%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Gregory John Bittner ranks in the 32nd percentile for cataract surgery in Medicare
Gregory Bittner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 11 procedures of cataract surgery by Gregory Bittner, more than 32% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Gregory Bittner ranks in Medicare procedure volume
- Cataract surgery
- 32nd percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Gregory John Bittner received $15 in industry payments in 2025
CMS Open Payments shows 1 general payment to Gregory Bittner from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $15.
Companies that paid Gregory Bittner the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Gregory John Bittner graduated from Pennsylvania College of Optometry
Gregory Bittner graduated from Pennsylvania College of Optometry in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Gregory John Bittner's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Gregory John Bittner
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory John Bittner's NPI number?
Gregory John Bittner's NPI number is 1134191448. It was assigned on February 2, 2006, and it is active in the NPI Registry.
What does Gregory John Bittner specialize in?
Gregory John Bittner is an optometrist in Allison Park, Pennsylvania. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Gregory John Bittner practice?
Gregory Bittner practices at 2384 Ferguson Rd, Allison Park, PA 15101-3550. Gregory Bittner's primary practice is Bittner Vision Associates in Allison Park, Pennsylvania. Dmand AI also links Gregory Bittner to 1 medical group.
What is Gregory John Bittner's office phone number?
The practice phone on file for Gregory Bittner is (412) 486-1043.
What is Gregory John Bittner's medical license number?
Gregory Bittner holds Pennsylvania license OEG000486.
Does Gregory John Bittner accept Medicare?
Yes. CMS lists Gregory Bittner as accepting Medicare assignment.
How many Medicare patients does Gregory John Bittner see?
CMS counts 198 Medicare patients who saw Gregory Bittner in 2024, with an average age of 75.
Where did Gregory John Bittner go to medical school?
Gregory Bittner graduated from Pennsylvania College of Optometry in 1981.
Has Gregory John Bittner received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Gregory Bittner from 1 company from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Gregory John Bittner been practicing?
Gregory Bittner graduated from medical school in 1981, 45 years ago.
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