Nora O'Byrne, MD
NPI 1073909826ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Merrionette Park, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Merrionette Park, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $807,241 for 2,095 claims, against $40,858 paid for services in 2024. Sequel Med Tech, LLC reported $85.62 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1073909826 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 8, 2015 |
| Last updated in NPPES | Aug 15, 2022 |
| Certified by provider | Aug 15, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036.149389 | IL |
| Internal Medicine | 207R00000X | 125066904 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 215 |
|---|---|
| Services billed | 1,269 across 17 procedure codes |
| Paid by Medicare | $40,858 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,095 · 4,304 30-day fills |
|---|---|
| Patients | 287 |
| Total drug cost | $807,241 |
| Generic share | 40% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Advocate Trinity HospitalChicago, IL
Industry payments (Open Payments)
- 2025$85.62 · 1 payment from 1 company
- 2024$123.02 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sequel Med Tech, LLC | $85.62 | 1 |
What the 2025 payments were for
- Food and Beverage$85.62 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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