Muhammad Bader Hammami, M.D.
NPI 1073801809ActiveIndividual· Internal Medicine, Gastroenterology· Rancho Cucamonga, CA
Internal Medicine, Gastroenterology (M.D.) in Rancho Cucamonga, California, trained at Saint Louis University School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $174,136 for 353 claims, against $11,400 paid for services in 2024. Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $343.18 in all, mostly food and beverage.
Overview
| NPI | 1073801809 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 14, 2011 |
| Last updated in NPPES | Apr 11, 2025 |
| Certified by provider | Apr 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A131069 | 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 | 74 |
|---|---|
| Services billed | 100 across 16 procedure codes |
| Paid by Medicare | $11,400 |
Part D prescriptions in 2024
| Prescriptions (claims) | 353 · 465 30-day fills |
|---|---|
| Patients | 279 |
| Total drug cost | $174,136 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical groups
- Faculty Physicians and Surgeons of LlusmLoma Linda, CA · 1,315 clinicians
- Basim Z. Abdelkarim, M.D., Inc.Upland, CA · 4 clinicians
Hospital affiliations
- Chino Valley Medical CenterChino, CA
- Montclair Hospital Medical CenterMontclair, CA
- Pomona Valley Hospital Medical CenterPomona, CA
- San Antonio Regional HospitalUpland, CA
Industry payments (Open Payments)
- 2025$343.18 · 15 payments from 3 companies
- 2024$116.27 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $256.25 | 11 |
| Janssen Biotech, Inc. | $71.83 | 3 |
| Pfizer Inc. | $15.10 | 1 |
What the 2025 payments were for
- Food and Beverage$343.18 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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