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CHAN, ROXANNEMD NPI 1851407787 Clinician

Diagnostic Radiology · SANTA MONICA, CA

Specialty Diagnostic Radiology — from billed Medicare claims
Trained NEW YORK MEDICAL COLLEGE — medical school, self-reported to CMS
In practice about 30 years since medical school (class of 1996, self-reported to CMS)
Location SANTA MONICA, CA · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 36 codes billed · 10,386 disclosed services (CY2024 — most recent year in data)
Current groups
member of 2 groups; the volumes below are this clinician's personal volume and are not attributed to any single group

Group affiliation since 2019

20192026
MEDICAL IMAGING CENTER OF SOUTHERN CALIFORNIA-BEVERLY HILLS INC
2023–2026
MEDICAL IMAGING CENTER OF SOUTHERN CALIFORNIA
2021–2026
CENTRAL VALLEY COMMUNITY MEDICAL IMAGING
2025
PRATT RADIOLOGY ASSOCIATES INC
2025
BLOOMINGTON RADIOLOGY S C
2023
DALLAS COUNTY HOSPITAL DISTRICT
2023
BROOKDALE HOSPITAL MEDICAL CENTER
2021–2023
FACULTY PHYSICIANS AND SURGEONS OF LLUSM
2021–2023
PCO PC
2021–2023
STEWARD RADIOLOGY PHYSICIANS OF ARIZONA INC
2021–2023
BLUE RADIOLOGY SERVICES LLC
2022
DHHS PHS NAIHS SHIPROCK HOSPITAL
2022
ON-LINE RADIOLOGY MEDICAL GROUP INC
2022
PRATT RADIOLOGY ASSOCIATES INC
2022
DHEW IND HLTH SV HLTH SVS AND MNTL HLTH ADM
2021–2022
RADADVANTAGE A PROFESSIONAL CORPORATION
2021–2022
UNIVERSITY MEDICAL CENTER RADIOLOGY
2021–2022
MEDICAL IMAGING CENTER OF SOUTHERN CALIFORNIA-BEVERLY HILLS INC
2021
RADIOLOGY ASSOCIATES OF ROCKLEDGE LLP
2021
ARIS RADIOLOGY PROFESSIONALS OF MICHIGAN PC
2020
PRATT RADIOLOGY ASSOCIATES INC
2020
QUANTUM MEDICAL RADIOLOGY OF CALIFORNIA PC
2019–2020
QUANTUM MEDICAL RADIOLOGY PC
2019–2020
ARIS TELERADIOLOGY PROFESSIONAL CORPORATION
2019
CLINCH COUNTY HOSPITAL AUTHORITY
2019

The roster archive begins in 2019, so a span starting at 2019 may reach back further. Membership spans only — no volume is attributed to any group here.

NPPES registry · CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · NPPES record last updated 2025-06

Year: 2024 · 2023 · 2022  · 2021  · 2020 

Provider overview · all codes · CY2024

The full analytics for this provider

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The billed-volume positioning, practice focus, and economics behind this provider — computed on the same disclosed Medicare Part B data.

This provider's disclosed Medicare payments across all codes were in CY2024. Included with Platform.

  • Payment, service & beneficiary totals — the disclosed scale, all codes
  • Practice profile — focus & reach — top codes by share of services
  • Office vs. facility setting mix — place-of-service code split
  • Volume over five years — discrete yearly counts, no rate
  • Peer positioning — service volume — percentile among specialty peers, cohort & year disclosed
  • Peer positioning — code breadth — how many codes billed, vs peers

Peer positioning shows billed-volume and code-breadth positions among specialty peers, not measures of care (a provider's true volume position can only be higher, never lower). All figures disclosed Medicare Part B fee-for-service; volumes are personal to this NPI, not attributed to any group.

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Procedures billed to Medicare Part B (2024)

Medicare Part B FFS · CY2024 · as published by CMS
CodeDescription Services Beneficiary-episodes Avg charge Avg Medicare payment
A9575 Injection, gadoterate meglumine, 0.1 ml
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml
Q9966 Low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml
73721 Mri scan of leg joint without contrast
73221 Mri scan of arm joint without contrast
71046 X-ray of chest, 2 views
76376 3d radiographic procedure
73718 Mri scan of leg without contrast
73502 X-ray of hip, 2-3 views
93971 Ultrasound study of one arm or leg veins with compression and maneuvers
72100 X-ray of lower and sacral spine, 2-3 views
73562 X-ray of knee, 3 views
73030 X-ray of shoulder, minimum of 2 views
72110 X-ray of lower and sacral spine, minimum of 4 views
76700 Complete ultrasound scan of abdomen
76856 Complete ultrasound scan of pelvis
76830 Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina
76770 Complete ultrasound scan behind abdominal cavity
72050 X-ray of upper spine, 4-5 views
71250 Ct scan of chest without contrast
73040 Review by radiologist of shoulder joint image
76536 Ultrasound scan of head and neck soft tissue
93970 Ultrasound study of arm or leg veins with compression and maneuvers
73223 Mri scan of arm joint before and after contrast
23350 Injection of contrast for imaging of shoulder joint
73218 Mri scan of arm without contrast
73700 Ct scan of leg without contrast
73130 X-ray of hand, minimum of 3 views
72131 Ct scan of lower spine without contrast
72040 X-ray of upper spine, 2-3 views
71260 Ct scan of chest with contrast
73630 X-ray of foot, minimum of 3 views
73200 Ct scan of arm without contrast
93925 Ultrasound of leg arteries or artery grafts
72125 Ct scan of upper spine without contrast
72195 Mri scan of pelvis without contrast

These are this provider's own Medicare Part B fee-for-service volumes (CMS public data). CMS suppresses rows with fewer than 11 beneficiaries, so low-volume codes may be missing entirely — absence is not zero. Beneficiary-episodes count CMS's per-setting beneficiary figures, not unique patients. Average charge and average Medicare payment are weighted by service volume across office and facility settings. Volumes on this page are personal to the NPI and are not attributed to any physician group. See Methods & Sources.