Lino J. Deguzman, M.D.
NPI 1346324720ActiveIndividual· Internal Medicine, Gastroenterology· Irvine, CA
Internal Medicine, Gastroenterology (M.D.) in Irvine, California, licensed in CA, with an NPI issued in October 2006. Their prescriptions cost Medicare Part D more than their services did: $598,729 for 1,838 claims, against $94,751 paid for services in 2024. Abbvie Inc. was the largest of 22 companies reporting payments in 2025, $4,824 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1346324720 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 24, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A46594 | 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) | Enrolled Practitioner - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 275 |
|---|---|
| Services billed | 1,471 across 36 procedure codes |
| Paid by Medicare | $94,751 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,838 · 3,454 30-day fills |
|---|---|
| Patients | 631 |
| Total drug cost | $598,729 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Gastroenterology |
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$4,824 · 157 payments from 22 companies
- 2024$3,482 · 142 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $911.69 | 44 |
| Janssen Biotech, Inc. | $504.25 | 20 |
| Madrigal Pharmaceuticals | $423.09 | 8 |
| Exact Sciences Corporation | $290.12 | 5 |
| Ardelyx, Inc. | $283.16 | 12 |
What the 2025 payments were for
- Food and Beverage$4,824 · 157 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Irvine
- 1134452725
- 1780843458
- 1881023257
- 1699898221
- 1558353144
- 1356361166
- 1275447773
- 1689759805
- 1841731080
- 1720492267
- 1366527491
- 1629123070
All Internal Medicine, Gastroenterology providers in California →