ROXANNE CHAN (MD) – Diagnostic Radiology Physician, NPI 1851407787
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,800 DIAGNOSTIC RADIOLOGY in CA
Provider Addresses for ROXANNE CHAN (MD)
1048 IRVINE AVE # 782
NEWPORT BEACH, CA 926604602
Phone: (310) 456-7828
Type: Mailing
2811 WILSHIRE BLVD
SANTA MONICA, CA 904034803
Phone: (310) 456-7828
Type: Location
Tufts Medical Center, 800, Washington Street, Chinatown, Financial District, Boston, Suffolk County, Massachusetts, 02111, United States
BOSTON, MA 021111552
Phone: (617) 636-5000
Type: Mailing
15332, Antioch Street, Pacific Palisades, Los Angeles, Los Angeles County, California, 90272, United States
#212
PACIFIC PALISADES, CA 902723628
Phone: (714) 966-8041
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2021-10-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 5 Medicare enrollment records; no due dates published yet.
Enrollment records
5
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20051017000855 | I | Diagnostic Radiology | CA | TBD |
| I20191224000526 | I | Diagnostic Radiology | MA | TBD |
| I20201002000254 | I | Diagnostic Radiology | TX | TBD |
| I20201229002212 | I | Diagnostic Radiology | FL | TBD |
| I20211012000505 | I | Diagnostic Radiology | NM | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| Q9967 | Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 5,200 | 50 | $0 |
| A9575 | Injection, gadoterate meglumine, 0.1 ml | 4,111 | 50 | $0 |
| Q9966 | Low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml | 1,400 | 14 | $0 |
| 73721 | Mri scan of leg joint without contrast | 260 | 218 | $0 |
| 76376 | 3d radiographic procedure | 152 | 148 | $0 |
Insurance plans in this area (ZIP 92660)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | CA | 71250 | CT scan chest | 112 | 108 |
| DIAGNOSTIC RADIOLOGY | CA | 73110 | X-ray of wrist, minimum of 3 views | 14 | 14 |
| DIAGNOSTIC RADIOLOGY | CA | 73562 | X-ray of knee, 3 views | 18 | 15 |
| DIAGNOSTIC RADIOLOGY | CA | 73630 | X-ray of foot, minimum of 3 views | 44 | 41 |
| DIAGNOSTIC RADIOLOGY | CA | 78452 | Nuclear medicine study of vessels of heart using drugs or exercise multiple studies | 32 | 32 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | CA | |
| Nuclear Medicine, Diagnostic Radiology | CA | |
| Vascular Surgery, Obstetrics/Gynecology | CA | |
| Diagnostic Radiology | MN | |
| Diagnostic Radiology | CA |
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