Alexander J. Chien, MD
NPI 1255313318ActiveIndividual· Radiology, Diagnostic Radiology· Pomona, CA
Radiology, Diagnostic Radiology (MD) in Pomona, California, trained at University of Michigan Medical School (class of 1997). Medicare paid $16,182 for services to 303 patients in 2024.
Overview
| NPI | 1255313318 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 15, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | A82949 | 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 - Diagnostic Radiology (CA); Practitioner - Diagnostic Radiology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 303 |
|---|---|
| Services billed | 401 across 88 procedure codes |
| Paid by Medicare | $16,182 |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Diagnostic Radiology |
Medical groups
- Darin Rentz DO PCRedlands, CA · 124 clinicians
- Imaging Specialists PLLCBrentwood, TN · 39 clinicians
Hospital affiliation
- Redlands Community HospitalRedlands, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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