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BAKER, DIANAM.D. NPI 1790730984 Clinician

Diagnostic Radiology · SAN FRANCISCO, CA

Specialty Diagnostic Radiology — from billed Medicare claims
Trained STANFORD UNIVERSITY SCHOOL OF MEDICINE — medical school, self-reported to CMS
In practice about 29 years since medical school (class of 1997, self-reported to CMS)
Location SAN FRANCISCO, CA · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 30 codes billed · 2,703 disclosed services (CY2024 — most recent year in data)
Current groups
member of 4 groups; the volumes below are this clinician's personal volume and are not attributed to any single group

Group affiliation since 2019

20192026
UNIVERSITY OF CALIFORNIA SAN FRANCISCO
2026
CALIFORNIA ADVANCED IMAGING MEDICAL ASSOCIATES INC
2019–2026
COUNTY OF SAN MATEO
2019–2026
SUTTER BAY MEDICAL FOUNDATION
2019–2026

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 2025-10

Year: 2024 · 2023 · 2022  · 2021  · 2020 

Provider overview · all codes · CY2024

The full analytics for this provider

Premium

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. Unlock to see the figure.

  • 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
77080 Dxa bone density measurement of hip, pelvis, spine
77067 Screening mammography
77063 Screening 3d breast mammography
76705 Limited ultrasound scan of abdomen
71045 X-ray of chest, 1 view
77081 Dxa bone density measurement of forearm, finger, hand, or foot
76770 Complete ultrasound scan behind abdominal cavity
76641 Complete ultrasound scan of 1 breast
70450 Ct scan head or brain without contrast
G0279 Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066)
76536 Ultrasound scan of head and neck soft tissue
77065 Diagnostic mammography of 1 breast
77066 Diagnostic mammography of both breasts
76856 Complete ultrasound scan of pelvis
74177 Ct scan of abdomen and pelvis with contrast
76830 Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina
76642 Limited ultrasound scan of 1 breast
76700 Complete ultrasound scan of abdomen
71046 X-ray of chest, 2 views
74176 Ct scan of abdomen and pelvis without contrast
71260 Ct scan of chest with contrast
77049 Mri scan of both breasts
73030 X-ray of shoulder, minimum of 2 views
70496 Ct scan of blood vessels of head with contrast
70498 Ct scan of blood vessels of neck with contrast
76706 Ultrasound scan of abdominal aorta
71250 Ct scan of chest without contrast
71275 Ct scan of blood vessels of chest with contrast
73502 X-ray of hip, 2-3 views
72125 Ct scan of upper spine 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.