Jun-Ichi Ohara, M.D., PH.D.
NPI 1578665667ActiveIndividual· Internal Medicine, Gastroenterology· Irvine, CA
Internal Medicine, Gastroenterology (M.D., PH.D.) with Ohara and Associates A Professional Medical Corporation, practicing in Irvine, California. 128 Medicare patients in 2024, $85,970 paid; nearly all of their 1,225 Part D prescriptions were generic (91%). Phathom Pharmaceuticals, Inc. reported $17.84 in payments in 2024, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1578665667 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PH.D. |
| Sole proprietor | No |
| NPI issued | Sep 1, 2006 |
| Last updated in NPPES | Feb 18, 2020 |
| Certified by provider | Feb 18, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | AO53621A | CA |
| Internal Medicine | 207R00000X | AO53621A | CA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 128 |
|---|---|
| Services billed | 931 across 35 procedure codes |
| Paid by Medicare | $85,970 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,225 · 2,798 30-day fills |
|---|---|
| Patients | 136 |
| Total drug cost | $76,659 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1975 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Ohara and Associates A Professional Medical CorporationIrvine, CA · 2 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2024$17.84 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $17.84 | 1 |
What the 2024 payments were for
- Food and Beverage$17.84 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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