Crystal Chang, M.D.
NPI 1518253012ActiveIndividual· Radiology, Diagnostic Radiology· Novato, CA
Radiology, Diagnostic Radiology (M.D.) with Bass Medical Group and 3 other groups, practicing in Novato, California. Medicare paid $183,008 for services to 2,003 patients in 2024. Lists Alta Bates Summit Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1518253012 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 22, 2011 |
| Last updated in NPPES | Dec 2, 2024 |
| Certified by provider | Dec 2, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | A140488 | 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 (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,003 |
|---|---|
| Services billed | 8,934 across 101 procedure codes |
| Paid by Medicare | $183,008 |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Diagnostic Radiology |
Medical groups
- Bass Medical GroupChico, CA · 291 clinicians
- Bay Imaging Consultants Medical Group IncVallejo, CA · 146 clinicians
- John Muir Trauma Physicians Billing ServiceWalnut Creek, CA · 113 clinicians
- John Muir Magnetic Imaging CenterConcord, CA · 57 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- San Ramon Regional Medical CenterSan Ramon, CA
- UCSF Health Saint Francis HospitalSan Francisco, 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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