Michael Andrew Brown, M.D.
NPI 1093719056ActiveIndividual· Internal Medicine, Cardiovascular Disease· Walnut Creek, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Walnut Creek, California, trained at Yale University School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $2,110,059 for 7,396 claims, against $450,213 paid for services in 2024. Philips North America LLC was the largest of 14 companies reporting payments in 2025, $757.18 in all, mostly food and beverage.
Overview
| NPI | 1093719056 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 8, 2005 |
| Last updated in NPPES | Aug 11, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | G79875 | CA |
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) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,849 |
|---|---|
| Services billed | 8,856 across 61 procedure codes |
| Paid by Medicare | $450,213 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,396 · 19,068 30-day fills |
|---|---|
| Patients | 907 |
| Total drug cost | $2,110,059 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Yale University School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Other facilities
- John Muir Home Health ServicesHome health agency · Concord, CA
Industry payments (Open Payments)
- 2025$757.18 · 33 payments from 14 companies
- 2024$989.77 · 44 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Philips North America LLC | $128.77 | 4 |
| Atricure, Inc. | $88.53 | 5 |
| Boston Scientific Corporation | $78.06 | 3 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $76.06 | 3 |
| Heartflow, Inc. | $67.73 | 3 |
What the 2025 payments were for
- Food and Beverage$757.18 · 33 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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