Doctor profile · Federal record

Dr. Mark Pennington, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Muskegon, MI

  • NPI 1275525958
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 39 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1700 Clinton St, Radiology Department
Muskegon, MI 494425502
(231) 728-4818
fax (231) 728-4622
Mailing address
605 W Western Ave, P.O. Box 208
Muskegon, MI 494401080

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
April 12, 2012
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
Michigan #43010058239
Medicaid
MI #305023010

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275525958. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
411
Distinct HCPCS
10
Medicare allowed
$10,422
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 73 69 $9
71046 X-ray of chest, 2 views 58 58 $10
70450 Ct scan head or brain without contrast 45 45 $38
71046 X-ray of chest, 2 views 30 30 $10
77067 Screening mammography 29 29 $36
77063 Screening 3d breast mammography 28 28 $28
72125 Ct scan of upper spine without contrast 18 18 $46
76705 Limited ultrasound scan of abdomen 18 18 $27
76775 Limited ultrasound scan behind abdominal cavity 17 17 $27
93880 Ultrasound of both sides of head and neck blood flow 17 17 $37

In context: peer comparison

Among 5 peers in this city , average services per provider: 68. This provider delivers 6.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Mark Pennington's medical specialty?
Dr. Mark Pennington practices Diagnostic Radiology Physician in Muskegon, MI.
Where does Dr. Mark Pennington practice?
Dr. Mark Pennington practices at 1700 Clinton St, Muskegon, MI 494425502. Office phone: 2317284818.
What is Dr. Mark Pennington's NPI?
Dr. Mark Pennington's National Provider Identifier (NPI) is 1275525958, issued by NPPES.
Does Dr. Mark Pennington accept Medicare assignment?
Yes. Dr. Mark Pennington accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Pennington commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); X-ray of chest, 2 views (HCPCS 71046); Ct scan head or brain without contrast (HCPCS 70450). Source: CMS Medicare Physician & Other Practitioners file.