Maxwell Jen, MD
NPI 1154688810ActiveIndividual· Emergency Medicine· Tustin, CA
Emergency Medicine (MD) in Tustin, California, trained at University of California, San Francisco School of Medicine (class of 2012). 1,342 Medicare patients in 2024, $1,062,246 paid; nearly all of their 105 Part D prescriptions were generic (90%). Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $43.97 in all, mostly food and beverage.
Overview
| NPI | 1154688810 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 19, 2012 |
| Last updated in NPPES | Dec 6, 2021 |
| Certified by provider | Aug 18, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A130209 | 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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,342 |
|---|---|
| Services billed | 12,278 across 61 procedure codes |
| Paid by Medicare | $1,062,246 |
Part D prescriptions in 2024
| Prescriptions (claims) | 105 · 108 30-day fills |
|---|---|
| Patients | 36 |
| Total drug cost | $5,109 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Emergency Medicine |
| Secondary specialties | General Practice |
| Telehealth | Offers telehealth |
Medical groups
- Regents of the University ofOrange, CA · 129 clinicians
- Vital Medical Group IncGlendale, CA · 10 clinicians
- Remedial Medical Services IncRiverside, CA · 9 clinicians
- Remedial Patients Care IncCorona, CA · 8 clinicians
Hospital affiliation
- Uci Health-OrangeOrange, CA
Other facilities
- Holy Light Home Health, Inc.Home health agency · Burbank, CA
- Laglen Home Inc.Home health agency · Burbank, CA
- Primary Home Care, IncHome health agency · Burbank, CA
- Top Form Home Health Care, Inc.Home health agency · Burbank, CA
- Vivat Skilled Nursing, IncHome health agency · Glendale, CA
Industry payments (Open Payments)
- 2025$43.97 · 2 payments from 2 companies
- 2024$18.71 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $24.77 | 1 |
| Revance Therapeutics, Inc. | $19.20 | 1 |
What the 2025 payments were for
- Food and Beverage$43.97 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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