Doctor profile · Federal record

Dr. MARK JOHNSON, M.D.

Diagnostic Radiology Physician (CMS: DIAGNOSTIC RADIOLOGY) · MOBILE, AL

  • NPI 1740222587
  • Accepts Medicare
  • MIPS 79.3 / 100 · 2023
  • 36 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3719 DAUPHIN ST
MOBILE, AL 366081753
(251) 340-7786
fax (251) 461-2030
Additional location
140 Burke Calhoun City Rd
Calhoun City, MS 389169690
(662) 628-6622

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
November 15, 2023
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
Alabama #21483

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1740222587. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,757
Distinct HCPCS
10
Medicare allowed
$78,292
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 809 587 $8
70450 Ct scan head or brain without contrast 243 225 $38
77067 Screening mammography 170 170 $34
77063 Screening 3d breast mammography 168 168 $27
74176 Ct scan of abdomen and pelvis without contrast 109 103 $79
71046 X-ray of chest, 2 views 94 86 $10
71260 Ct scan of chest with contrast 92 89 $52
74177 Ct scan of abdomen and pelvis with contrast 92 86 $82
74018 X-ray of abdomen, 1 view 87 76 $8
71250 Ct scan of chest without contrast 73 70 $48

In context: peer comparison

Among 20 peers in this city , average services per provider: 56. This provider delivers 49× the peer median.

Hospital affiliations

CMS Hospital Compare