Greg A. Leszek, OD
- Medicare patients, 2024
- 115
- Part D claims, 2024
- 183
- Hospital affiliations
- 1
- Industry payments
- $289
- Medical group
- 1
- Practice address
- 135 East 38th Street, Erie, PA 16504
- Practice phone
- Call (814) 860-2576
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Greg Leszek'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.
Greg A. Leszek is an optometrist in Erie, Pennsylvania
Greg Leszek practices at Erie VA Medical Center in Erie, Pennsylvania, part of Veterans Health Administration.
Greg Leszek's NPI, 1386714806, was assigned on November 9, 2006. Greg Leszek graduated from Ohio State University - College of Optometry in 2003. Greg Leszek holds Pennsylvania license OEG001253.
- NPI
- 1386714806NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234108135
- NPI enumeration date
- November 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (814) 860-2576
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Greg A. Leszek practices at Erie VA Medical Center in Erie, Pennsylvania
Greg Leszek's primary practice is Erie VA Medical Center, at 135 East 38th Street, Erie, PA 16504 in Erie County. The practice phone is (814) 860-2576.
- Erie VA Medical Center135 East 38th Street, Erie, PA 16504 · Erie CountyPhone(814) 860-2576
Source: Dmand AI Affiliation Data
Greg A. Leszek is affiliated with 2 sites of care and 1 medical group
Greg Leszek's primary practice is Erie VA Medical Center in Erie, Pennsylvania, part of Veterans Health Administration. Dmand AI also links Greg Leszek to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Greg A. Leszek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Greg Leszek practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Erie VA Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Greg A. Leszek is one of 1,750 optometrists in Pennsylvania
Optometrist is Greg Leszek's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Greg Leszek is licensed in Pennsylvania.
Specialties and state licenses
- Optometrist, PennsylvaniaPrimary
Optometrists near Greg Leszek
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
Greg A. Leszek treated 115 Medicare patients in 2024, average age 72
CMS counts 115 Medicare patients who saw Greg Leszek in 2024. The largest group is 65 to 74, with 79 patients. 73% of them have high cholesterol, and 67% have high blood pressure. Their average risk score is 0.82, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Greg Leszek's median patient age at 70, with 56% women.
Greg Leszek's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Greg Leszek's Medicare patients by sex, 2024
- Women6657%
- Men4943%
Chronic conditions among Greg Leszek's Medicare patients, 2024
- High cholesterol73%
- High blood pressure67%
- Arthritis46%
- Diabetes23%
- Mood disorders22%
- Depression17%
- Ischemic heart disease17%
- Osteoporosis16%
Share of Medicare patients with each condition. A patient can have several.
Greg Leszek's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Greg A. Leszek wrote 183 Medicare Part D claims in 2024
In 2024, Greg Leszek wrote 183 Medicare Part D claims for 50 patients. 81% of them were for generic drugs.
Greg Leszek's Part D claims by kind of drug, 2024
- Generic149 claims81%
- Brand-name34 claims19%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Greg A. Leszek takes part in Medicare
Greg Leszek accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Greg A. Leszek received $289 in industry payments in 2025
CMS Open Payments shows 5 general payments to Greg Leszek from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $150.
Companies that paid Greg Leszek the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Greg A. Leszek graduated from Ohio State University - College of Optometry
Greg Leszek graduated from Ohio State University - College of Optometry in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Greg A. Leszek'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 DataDmand AI Org Hierarchy 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 Greg A. Leszek
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Greg A. Leszek's NPI number?
Greg A. Leszek's NPI number is 1386714806. It was assigned on November 9, 2006, and it is active in the NPI Registry.
What does Greg A. Leszek specialize in?
Greg A. Leszek is an optometrist in Erie, Pennsylvania. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Greg A. Leszek practice?
Greg Leszek practices at 135 East 38th Street, Erie, PA 16504. Greg Leszek's primary practice is Erie VA Medical Center in Erie, Pennsylvania, part of Veterans Health Administration. Dmand AI also links Greg Leszek to 1 group practice or clinic and 1 medical group.
What is Greg A. Leszek's office phone number?
The practice phone on file for Greg Leszek is (814) 860-2576.
What is Greg A. Leszek's medical license number?
Greg Leszek holds Pennsylvania license OEG001253.
Which hospitals is Greg A. Leszek affiliated with?
Greg Leszek practices at Erie VA Medical Center in Erie, Pennsylvania.
Does Greg A. Leszek accept Medicare?
Yes. CMS lists Greg Leszek as accepting Medicare assignment.
How many Medicare patients does Greg A. Leszek see?
CMS counts 115 Medicare patients who saw Greg Leszek in 2024, with an average age of 72.
Where did Greg A. Leszek go to medical school?
Greg Leszek graduated from Ohio State University - College of Optometry in 2003.
Has Greg A. Leszek received payments from drug or device companies?
CMS Open Payments shows $289 in general payments to Greg Leszek from 4 companies from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Greg A. Leszek been practicing?
Greg Leszek graduated from medical school in 2003, 23 years ago.
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