Irene L. Dejak, MD
NPI 1407885411ActiveIndividual· Internal Medicine, Bariatric Medicine· Cleveland, OH
Internal Medicine, Bariatric Medicine (MD) in Cleveland, Ohio, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $263,739 for 607 claims, against $6,789 paid for services in 2024. Novo Nordisk Inc reported $16.05 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1407885411 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 2, 2006 |
| Last updated in NPPES | Aug 3, 2026 |
| Certified by provider | Aug 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Bariatric Medicine Primary | 207RB0002X | 3508-2166-D | OH |
| Preventive Medicine, Obesity Medicine | 2083B0002X | OH35082166 | OH |
| Internal Medicine | 207R00000X | 35082166 | OH |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 50 |
|---|---|
| Services billed | 114 across 3 procedure codes |
| Paid by Medicare | $6,789 |
Part D prescriptions in 2024
| Prescriptions (claims) | 607 · 803 30-day fills |
|---|---|
| Patients | 96 |
| Total drug cost | $263,739 |
| Generic share | 58% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Summa Physicians LLCAkron, OH · 671 clinicians
Hospital affiliation
- Summa Health SystemAkron, OH
Industry payments (Open Payments)
- 2025$16.05 · 1 payment from 1 company
- 2024$122.18 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $16.05 | 1 |
What the 2025 payments were for
- Food and Beverage$16.05 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Bariatric Medicine providers in Cleveland
- 1093501959
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- 1144260761
- 1588615652
All Internal Medicine, Bariatric Medicine providers in Ohio →