William Chen, DO
NPI 1720575871ActiveIndividual· Family Medicine· Farmington, NM
Family Medicine (DO) in Farmington, New Mexico, trained at Touro Un College of Osteopathic Medicine, Vallejo (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $763,536 for 2,666 claims, against $482.48 paid for services in 2024. Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $298.87 in all, mostly food and beverage.
Overview
| NPI | 1720575871 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 15, 2018 |
| Last updated in NPPES | Jan 11, 2024 |
| Certified by provider | Jan 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | DO2024-0004 | NM |
| Family Medicine | 207Q00000X | 20A17902 | 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 - Family Practice (CA); Practitioner - Family Practice (NM); Practitioner - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 28 |
|---|---|
| Services billed | 33 across 4 procedure codes |
| Paid by Medicare | $482.48 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,666 · 5,386 30-day fills |
|---|---|
| Patients | 282 |
| Total drug cost | $763,536 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Touro Un College of Osteopathic Medicine, Vallejo |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical groups
- Northbay Health Medical FoundationFairfield, CA · 213 clinicians
- Presbyterian Medical ServicesCarlsbad, NM · 132 clinicians
Hospital affiliations
- Northbay Medical CenterFairfield, CA
- San Juan Regional Medical Center IncFarmington, NM
Other facilities
- Aura Home Health, LLCHome health agency · Antioch, CA
Industry payments (Open Payments)
- 2025$298.87 · 16 payments from 11 companies
- 2024$146.79 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $45.29 | 3 |
| Otsuka America Pharmaceutical, Inc. | $34.42 | 2 |
| Medtronic, Inc. | $31.12 | 2 |
| Sage Therapeutics, LLC | $30.15 | 2 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $30.07 | 1 |
What the 2025 payments were for
- Food and Beverage$298.87 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 family medicine physicians in Farmington · All family medicine physicians in New Mexico