Isaac Mezo, M.D.
NPI 1346415908ActiveIndividual· Psychiatry & Neurology, Neurology· Channahon, IL
Psychiatry & Neurology, Neurology (M.D.) with Morris Hospital, practicing in Channahon, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,199,213 for 2,457 claims, against $55,373 paid for services in 2024. Axsome Therapeutics, Inc. was the largest of 36 companies reporting payments in 2025, $33,781 in all, mostly honoraria. Lists Morris Hospital & Healthcare Centers and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1346415908 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 24, 2008 |
| Last updated in NPPES | Jul 25, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 036128413 | IL |
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 - Neurology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 508 |
|---|---|
| Services billed | 1,071 across 31 procedure codes |
| Paid by Medicare | $55,373 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,457 · 4,575 30-day fills |
|---|---|
| Patients | 411 |
| Total drug cost | $1,199,213 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Neurology |
Medical group
- Morris HospitalSeneca, IL · 115 clinicians
Hospital affiliations
- Morris Hospital & Healthcare CentersMorris, IL
- Osf Saint Elizabeth Mdl CtrPeru, IL
- Saint Joseph Medical CenterJoliet, IL
- Silver Cross Hospital and Medical CentersNew Lenox, IL
Other facilities
- Panoptic Home HealthHome health agency · Morris, IL
Industry payments (Open Payments)
- 2025$33,781 · 176 payments from 36 companies
- 2024$19,919 · 196 payments from 34 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Axsome Therapeutics, Inc. | $22,259 | 32 |
| Eisai Inc. | $9,166 | 17 |
| Abbvie Inc. | $525.77 | 35 |
| Teva Pharmaceuticals USA, Inc. | $241.86 | 13 |
| Emd Serono, Inc. | $235.51 | 7 |
What the 2025 payments were for
- Honoraria$20,900 · 6 payments
- Compensation for serving as faculty or as a speaker for a medical education program$7,423 · 10 payments
- Food and Beverage$3,282 · 152 payments
- Travel and Lodging$1,041 · 5 payments
- Consulting Fee$1,000 · 1 payment
- Education$135.49 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records