Michael Blam, MD
NPI 1801877733ActiveIndividual· Internal Medicine, Gastroenterology· Long Beach, CA
Internal Medicine, Gastroenterology (MD) in Long Beach, California, trained at Washington University School of Medicine (class of 1995). In 2024 Medicare paid $148,687 for 558 patients, and Part D covered 785 of their prescriptions, 78% of them generic. Salix Pharmaceuticals, A Division of Bausch Health US, LLC was the largest of 5 companies reporting payments in 2025, $656.16 in all, mostly food and beverage.
Overview
| NPI | 1801877733 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 8, 2005 |
| Last updated in NPPES | Jan 29, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 039355 | CT |
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 | 558 |
|---|---|
| Services billed | 1,843 across 27 procedure codes |
| Paid by Medicare | $148,687 |
Part D prescriptions in 2024
| Prescriptions (claims) | 785 · 857 30-day fills |
|---|---|
| Patients | 440 |
| Total drug cost | $123,420 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | Washington University School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Gastro-Digestive Medical GroupDowney, CA · 3 clinicians
Hospital affiliations
- Pih Health Downey HospitalDowney, CA
- Saint Francis Medical CenterLynwood, CA
- Uci Health-LakewoodLakewood, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$656.16 · 43 payments from 5 companies
- 2024$99.49 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $281.84 | 26 |
| Ardelyx, Inc. | $271.83 | 13 |
| Janssen Biotech, Inc. | $46.97 | 2 |
| Pfizer Inc. | $29.43 | 1 |
| Madrigal Pharmaceuticals | $26.09 | 1 |
What the 2025 payments were for
- Food and Beverage$656.16 · 43 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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