Monica Wei
NPI 1417450214ActiveIndividual· Internal Medicine, Rheumatology· Walnut Creek, CA
Internal Medicine, Rheumatology with John Muir Physician Network, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $574,367 for 673 claims, against $60,556 paid for services in 2024. Amgen Inc. was the largest of 20 companies reporting payments in 2025, $1,694 in all, mostly food and beverage. Lists John Muir Medical Center - Concord Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1417450214 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 18, 2018 |
| Last updated in NPPES | Oct 9, 2023 |
| Certified by provider | Oct 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | A189352 | 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 - Rheumatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 206 |
|---|---|
| Services billed | 626 across 14 procedure codes |
| Paid by Medicare | $60,556 |
Part D prescriptions in 2024
| Prescriptions (claims) | 673 · 1,150 30-day fills |
|---|---|
| Patients | 174 |
| Total drug cost | $574,367 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Rheumatology |
| 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
Industry payments (Open Payments)
- 2025$1,694 · 89 payments from 20 companies
- 2024$2,069 · 89 payments from 27 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $500.45 | 31 |
| Abbvie Inc. | $155.61 | 12 |
| Fresenius Kabi USA, LLC | $133.90 | 4 |
| Novartis Pharmaceuticals Corporation | $109.96 | 5 |
| Aurinia Pharma U.S., Inc. | $93.20 | 5 |
What the 2025 payments were for
- Food and Beverage$1,694 · 89 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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