Juana Gonzalez Aguirre, M.D.
NPI 1811278112ActiveIndividual· Internal Medicine· Concord, CA
Internal Medicine (M.D.) with John Muir Physician Network, practicing in Concord, California. Their prescriptions cost Medicare Part D more than their services did: $388,377 for 3,722 claims, against $105,824 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 3 companies reporting payments in 2025, $155.48 in all, mostly food and beverage. Lists Alta Bates Summit Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1811278112 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 31, 2011 |
| Last updated in NPPES | Jan 19, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A117419 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 535 |
|---|---|
| Services billed | 1,802 across 37 procedure codes |
| Paid by Medicare | $105,824 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,722 · 8,388 30-day fills |
|---|---|
| Patients | 562 |
| Total drug cost | $388,377 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Other facilities
- Healthflex Home Health ServicesHome health agency · Oakland, CA
- John Muir Home Health ServicesHome health agency · Concord, CA
- One Health Home Care, IncHome health agency · Livermore, CA
- Prohealth Home Care, IncHome health agency · Stockton, CA
Industry payments (Open Payments)
- 2025$155.48 · 6 payments from 3 companies
- 2024$83.68 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $70.83 | 3 |
| Lilly USA, LLC | $59.26 | 2 |
| Exact Sciences Corporation | $25.39 | 1 |
What the 2025 payments were for
- Food and Beverage$155.48 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 internal medicine physicians in Concord · All internal medicine physicians in California