Hongguang Liu, M.D.
NPI 1780892117ActiveIndividual· Internal Medicine, Gastroenterology· Redding, CA
Internal Medicine, Gastroenterology (M.D.) with Hazel Hawkins Memorial Hospital, practicing in Redding, California. In 2024 Medicare paid $100,145 for 498 patients, and Part D covered 336 of their prescriptions, 76% of them generic. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $893.52 in all, mostly food and beverage. Lists Hazel Hawkins Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1780892117 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 18, 2007 |
| Last updated in NPPES | Apr 13, 2026 |
| Certified by provider | Apr 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A120683 | 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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 498 |
|---|---|
| Services billed | 963 across 33 procedure codes |
| Paid by Medicare | $100,145 |
Part D prescriptions in 2024
| Prescriptions (claims) | 336 · 342 30-day fills |
|---|---|
| Patients | 316 |
| Total drug cost | $9,681 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Hazel Hawkins Memorial HospitalHollister, CA · 52 clinicians
Hospital affiliations
- Hazel Hawkins Memorial HospitalHollister, CA
- Mercy Medical Center ReddingRedding, CA
Industry payments (Open Payments)
- 2025$893.52 · 36 payments from 8 companies
- 2024$551.84 · 25 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $454.54 | 21 |
| Ipsen Biopharmaceuticals, Inc | $116.62 | 4 |
| Madrigal Pharmaceuticals | $107.90 | 1 |
| Janssen Biotech, Inc. | $74.37 | 4 |
| Pfizer Inc. | $55.39 | 3 |
What the 2025 payments were for
- Food and Beverage$893.52 · 36 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 gastroenterologists in Redding · All gastroenterologists in California