Joseph Chambers, M.D.
NPI 1578533238ActiveIndividual· Internal Medicine, Interventional Cardiology· Tucson, AZ
Internal Medicine, Interventional Cardiology (M.D.) in Tucson, Arizona, trained at Southern Illinois University School of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $712,496 for 3,671 claims, against $126,334 paid for services in 2024. Abbott Laboratories was the largest of 3 companies reporting payments in 2025, $327.22 in all, mostly food and beverage.
Overview
| NPI | 1578533238 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 25, 2006 |
| Last updated in NPPES | May 14, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 34291 | AZ |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 34291 | AZ |
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 - Cardiovascular Disease (Cardiology) (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 747 |
|---|---|
| Services billed | 1,649 across 56 procedure codes |
| Paid by Medicare | $126,334 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,671 · 9,826 30-day fills |
|---|---|
| Patients | 528 |
| Total drug cost | $712,496 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Southern Illinois University School of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical groups
- Tmc Medical NetworkTucson, AZ · 281 clinicians
- Tucson Physician Group Holdings LLCTucson, AZ · 201 clinicians
- TmconeGreen Valley, AZ · 96 clinicians
Hospital affiliations
- St Joseph's HospitalTucson, AZ
- St. Mary's HospitalTucson, AZ
- Tucson Medical CenterTucson, AZ
Industry payments (Open Payments)
- 2025$327.22 · 6 payments from 3 companies
- 2024$265.72 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $146.03 | 1 |
| Boston Scientific Corporation | $126.65 | 2 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $54.54 | 3 |
What the 2025 payments were for
- Food and Beverage$327.22 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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