Doctor profile · Federal record

Dr. Nicholas Armstrong, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Diagnostic Radiology Physician · Student in an Organized Health Care Education/Training Program · Oklahoma City, OK

  • NPI 1134418759
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 15 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3433 Nw 56Th, Suite C-40
Oklahoma City, OK 731124455
(405) 945-4741
fax (888) 972-5320

Credentials & registration

NPPES · NUCC
NPI registered
April 2011 — 15 yrs on file
Profile last updated
July 19, 2021
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State licenses (2)
Oklahoma #29211 · California #A142667

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134418759. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,135
Distinct HCPCS
10
Medicare allowed
$159,501
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 1,469 1,107 $8
70450 Ct scan head or brain without contrast 353 334 $39
71046 X-ray of chest, 2 views 244 240 $10
74018 X-ray of abdomen, 1 view 240 208 $8
74177 Ct scan of abdomen and pelvis with contrast 236 228 $84
71250 Ct scan of chest without contrast 161 156 $49
74176 Ct scan of abdomen and pelvis without contrast 154 154 $81
78815 Nuclear medicine study from skull base to mid-thigh with ct scan 135 129 $109
74420 Imaging of urinary tract following injection of a contrast agent 133 126 $24
71260 Ct scan of chest with contrast 123 118 $51

In context: peer comparison

Among 45 peers in this city , average services per provider: 88. This provider delivers 58× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nicholas Armstrong's medical specialty?
Dr. Nicholas Armstrong practices Diagnostic Radiology Physician in Oklahoma City, OK.
Where does Dr. Nicholas Armstrong practice?
Dr. Nicholas Armstrong practices at 3433 Nw 56Th, Suite C-40, Oklahoma City, OK 731124455. Office phone: 4059454741.
What is Dr. Nicholas Armstrong's NPI?
Dr. Nicholas Armstrong's National Provider Identifier (NPI) is 1134418759, issued by NPPES.
Does Dr. Nicholas Armstrong accept Medicare assignment?
Yes. Dr. Nicholas Armstrong accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nicholas Armstrong commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.