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ARMSTRONG, NICHOLASM.D. NPI 1134418759 Clinician

Diagnostic Radiology · OKLAHOMA CITY, OK

Specialty Diagnostic Radiology — from billed Medicare claims
Trained UNIVERSITY OF OKLAHOMA COLLEGE OF MEDICINE — medical school, self-reported to CMS
In practice about 15 years since medical school (class of 2011, self-reported to CMS)
Location OKLAHOMA CITY, OK · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 66 codes billed · 5,502 disclosed services (CY2024 — most recent year in data)
Current groups

Group affiliation since 2019

20192026
RADIOLOGY ASSOCIATES LLC
2022–2026
HOT SPRINGS RADIOLOGY SERVICES, LTD
2019–2021

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 2021-07

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. 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
71045 X-ray of chest, 1 view
70450 Ct scan head or brain without contrast
74177 Ct scan of abdomen and pelvis with contrast
74018 X-ray of abdomen, 1 view
71046 X-ray of chest, 2 views
71250 Ct scan of chest without contrast
74176 Ct scan of abdomen and pelvis without contrast
71260 Ct scan of chest with contrast
78815 Nuclear medicine study from skull base to mid-thigh with ct scan
74420 Imaging of urinary tract following injection of a contrast agent
71275 Ct scan of blood vessels of chest with contrast
76770 Complete ultrasound scan behind abdominal cavity
73700 Ct scan of leg without contrast
77080 Dxa bone density measurement of hip, pelvis, spine
76705 Limited ultrasound scan of abdomen
73562 X-ray of knee, 3 views
76700 Complete ultrasound scan of abdomen
93971 Ultrasound study of one arm or leg veins with compression and maneuvers
73630 X-ray of foot, minimum of 3 views
73030 X-ray of shoulder, minimum of 2 views
73560 X-ray of knee, 1-2 views
72125 Ct scan of upper spine without contrast
73130 X-ray of hand, minimum of 3 views
72170 X-ray of pelvis, 1-2 views
76536 Ultrasound scan of head and neck soft tissue
73552 X-ray of thigh bone, minimum 2 views
73502 X-ray of hip, 2-3 views
73501 X-ray of hip, 1 view
74230 Imaging for evaluation of swallowing function
73721 Mri scan of leg joint without contrast
70551 Mri scan of brain without contrast
70496 Ct scan of blood vessels of head with contrast
73221 Mri scan of arm joint without contrast
70498 Ct scan of blood vessels of neck with contrast
93970 Ultrasound study of arm or leg veins with compression and maneuvers
71271 Low dose ct scan of chest for lung cancer screening
72100 X-ray of lower and sacral spine, 2-3 views
93880 Ultrasound of both sides of head and neck blood flow
72192 Ct scan of pelvis without contrast
74178 Ct scan of abdomen and pelvis before and after contrast
73610 X-ray of ankle, minimum of 3 views
74174 Ct scan of blood vessels of abdomen and pelvis with contrast
72148 Mri scan of lower spinal canal without contrast
93975 Complete ultrasound of abdomen and pelvis artery and vein blood flow
73590 X-ray of lower leg, 2 views
72040 X-ray of upper spine, 2-3 views
72141 Mri scan of upper spinal canal without contrast
93925 Ultrasound of leg arteries or artery grafts
73110 X-ray of wrist, minimum of 3 views
73620 X-ray of foot, 2 views
74160 Ct scan of abdomen with contrast
72131 Ct scan of lower spine without contrast
74181 Mri scan of abdomen without contrast
74220 Single contrast x-ray of esophagus
76706 Ultrasound scan of abdominal aorta
78306 Nuclear medicine study of bone and/or joint whole body
78816 Nuclear medicine study whole body with ct scan
93926 Ultrasound of one leg arteries or artery grafts
93979 Ultrasound of aorta, vena cava, groin vessels or bypass grafts
73200 Ct scan of arm without contrast
78315 Nuclear medicine study of bone taken at different times
73060 X-ray of upper arm, minimum of 2 views
73070 X-ray of elbow, 2 views
70486 Ct scan of face without contrast
72128 Ct scan of middle spine without contrast
74019 X-ray of abdomen, 2 views

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.