Huafeng Shen, M.D.
NPI 1780950105ActiveIndividual· Internal Medicine, Gastroenterology· Murrieta, CA
Internal Medicine, Gastroenterology (M.D.) with United Medical Doctors, practicing in Murrieta, California. Their prescriptions cost Medicare Part D more than their services did: $277,738 for 1,036 claims, against $89,098 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 17 companies reporting payments in 2025, $2,214 in all, mostly food and beverage. Lists Southwest Healthcare Rancho Springs Hospital as a hospital affiliation.
Overview
| NPI | 1780950105 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 29, 2012 |
| Last updated in NPPES | Nov 12, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A155704 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 302 |
|---|---|
| Services billed | 788 across 22 procedure codes |
| Paid by Medicare | $89,098 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,036 · 1,612 30-day fills |
|---|---|
| Patients | 408 |
| Total drug cost | $277,738 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2005 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- United Medical DoctorsMurrieta, CA · 173 clinicians
Hospital affiliation
- Southwest Healthcare Rancho Springs HospitalMurrieta, CA
Industry payments (Open Payments)
- 2025$2,214 · 123 payments from 17 companies
- 2024$1,300 · 66 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $456.87 | 19 |
| Janssen Biotech, Inc. | $386.07 | 23 |
| Abbvie Inc. | $354.37 | 26 |
| Ardelyx, Inc. | $326.31 | 20 |
| Celltrion USA Inc. | $162.76 | 6 |
What the 2025 payments were for
- Food and Beverage$2,214 · 123 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Murrieta
- 1821245382
- 1770559981
- 1760645121
- 1033476262
- 1801229109
- 1356845325
- 1588869382
- 1851634703
- 1760822191
All Internal Medicine, Gastroenterology providers in California →