Isaac Ilaoa, D.O
NPI 1336415280ActiveIndividual· Internal Medicine· Bethany, OK
Opted out of Medicare from September 2024 to September 2028. Internal Medicine (D.O) in Bethany, Oklahoma, licensed in OK and CA, with an NPI issued in March 2012. Their prescriptions cost Medicare Part D more than their services did: $387,436 for 3,241 claims, against $8,709 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 7 companies reporting payments in 2025, $418.86 in all, mostly food and beverage.
Overview
| NPI | 1336415280 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O |
| Sole proprietor | No |
| NPI issued | Mar 26, 2012 |
| Last updated in NPPES | Aug 6, 2020 |
| Certified by provider | Aug 6, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 6820 | OK |
| Internal Medicine | 207R00000X | 20A13091 | CA |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Sep 3, 2024 – Sep 3, 2028 |
| Can order and refer | Yes |
| Accepts assignment | Yes (participating) |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Medicare services in 2024
| Medicare patients | 46 |
|---|---|
| Services billed | 187 across 20 procedure codes |
| Paid by Medicare | $8,709 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,241 · 6,064 30-day fills |
|---|---|
| Patients | 201 |
| Total drug cost | $387,436 |
| Generic share | 84% of claims |
Industry payments (Open Payments)
- 2025$418.86 · 20 payments from 7 companies
- 2024$681.77 · 40 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $160.49 | 8 |
| Otsuka America Pharmaceutical, Inc. | $116.89 | 5 |
| Axsome Therapeutics, Inc. | $44.73 | 2 |
| Novo Nordisk Inc | $32.30 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $28.34 | 1 |
What the 2025 payments were for
- Food and Beverage$418.86 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Bethany
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