Ann Bich Huyen Nguyen-Traxler, M.D.
NPI 1376770933ActiveIndividual· Internal Medicine· Berkeley, CA
Internal Medicine (M.D.) in Berkeley, California, trained at University of Oklahoma College of Medicine (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $742,941 for 9,814 claims, against $170,726 paid for services in 2024. Collegium Pharmaceutical, Inc. was the largest of 10 companies reporting payments in 2025, $285.19 in all, mostly food and beverage.
Overview
| NPI | 1376770933 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 22, 2009 |
| Last updated in NPPES | Oct 19, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A135433 | 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 | 428 |
|---|---|
| Services billed | 1,814 across 28 procedure codes |
| Paid by Medicare | $170,726 |
Part D prescriptions in 2024
| Prescriptions (claims) | 9,814 · 15,953 30-day fills |
|---|---|
| Patients | 562 |
| Total drug cost | $742,941 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Rossmoor Medical Associates IncWalnut Creek, CA · 5 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Other facilities
- Ace Home Health Care & Hospice, IncHome health agency · Orinda, CA
- Health Link Home Health AgencyHome health agency · San Francisco, CA
- John Muir Home Health ServicesHome health agency · Concord, CA
- One Health Home Care, IncHome health agency · Livermore, CA
- Triza Home Health CareHome health agency · Hayward, CA
- Alameda Care HospiceHospice · Walnut Creek, CA
- Atrium Hospice LLCHospice · Brentwood, CA
- Compassionate Care HospiceHospice · San Ramon, CA
- Bayberry Skilled Nursing & Healthcare CenterNursing home · Concord, CA
Industry payments (Open Payments)
- 2025$285.19 · 11 payments from 10 companies
- 2024$274.78 · 13 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Collegium Pharmaceutical, Inc. | $44.17 | 2 |
| Globus Medical, Inc. | $42.68 | 1 |
| Ucb, Inc. | $31.53 | 1 |
| Dexcom, Inc. | $29.58 | 1 |
| Exact Sciences Corporation | $26.14 | 1 |
What the 2025 payments were for
- Food and Beverage$285.19 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 100 internal medicine physicians in Berkeley · All internal medicine physicians in California