Doctor profile · Federal record

Dr. Antonio Carlos Westphalen, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Diagnostic Radiology Physician · Seattle, WA

  • NPI 1689682015
  • Accepts Medicare
  • MIPS 87.0 / 100 · 2023
  • 31 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1959 Ne Pacific St
Seattle, WA 981952204
(206) 520-5000
Mailing address
Po Box 50095
Seattle, WA 981455095

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
June 3, 2020
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State licenses (2)
Washington #MD61039212 · California #F5317
Medicaid
WA #1689682015

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689682015. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,635
Distinct HCPCS
10
Medicare allowed
$156,180
HCPCS Description Services Patients Avg allowed
74018 X-ray of abdomen, 1 view 405 291 $9
74177 Ct scan of abdomen and pelvis with contrast 276 264 $93
74177 Ct scan of abdomen and pelvis with contrast 218 207 $93
76705 Limited ultrasound scan of abdomen 144 135 $30
74230 Imaging for evaluation of swallowing function 118 112 $27
72197 Mri scan of pelvis before and after contrast 114 114 $111
74174 Ct scan of blood vessels of abdomen and pelvis with contrast 112 107 $111
76377 3d radiographic procedure with computerized image postprocessing 86 86 $40
74183 Mri scan of abdomen before and after contrast 84 82 $110
71260 Ct scan of chest with contrast 76 73 $56

In context: peer comparison

Among 79 peers in this city , average services per provider: 113. This provider delivers 23× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Antonio Carlos Westphalen's medical specialty?
Dr. Antonio Carlos Westphalen practices Diagnostic Radiology Physician in Seattle, WA.
Where does Dr. Antonio Carlos Westphalen practice?
Dr. Antonio Carlos Westphalen practices at 1959 Ne Pacific St, Seattle, WA 981952204. Office phone: 2065205000.
What is Dr. Antonio Carlos Westphalen's NPI?
Dr. Antonio Carlos Westphalen's National Provider Identifier (NPI) is 1689682015, issued by NPPES.
Does Dr. Antonio Carlos Westphalen accept Medicare assignment?
Yes. Dr. Antonio Carlos Westphalen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Antonio Carlos Westphalen commonly perform?
Top Medicare-reported procedures in 2023: X-ray of abdomen, 1 view (HCPCS 74018); Ct scan of abdomen and pelvis with contrast (HCPCS 74177); Ct scan of abdomen and pelvis with contrast (HCPCS 74177). Source: CMS Medicare Physician & Other Practitioners file.