DR. MARK R PENNINGTON (M.D.) – Diagnostic Radiology Physician, NPI 1275525958
Diagnostic Radiology Physician
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,650 DIAGNOSTIC RADIOLOGY in MI
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Provider Addresses for DR. MARK R PENNINGTON (M.D.)
605, West Western Avenue, Muskegon, Muskegon County, Michigan, 49440, United States
P.O. BOX 208
MUSKEGON, MI 494401080
Phone: (231) 722-6005
Fax: (231) 726-2804
Type: Mailing
Mercy Health Hackley Campus, 1700, Clinton Street, Muskegon, Muskegon County, Michigan, 49444, United States
RADIOLOGY DEPARTMENT
MUSKEGON, MI 494425502
Phone: (231) 728-4818
Fax: (231) 728-4622
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2011-02-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20110217000382 | I | Diagnostic Radiology | MI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 71046 | X-ray of chest, 2 views | 88 | 88 | $0 |
| 71045 | X-ray of chest, 1 view | 73 | 69 | $0 |
| 70450 | Ct scan head or brain without contrast | 45 | 45 | $0 |
| 77067 | Screening mammography | 40 | 40 | $0 |
| 76705 | Limited ultrasound scan of abdomen | 33 | 33 | $0 |
Insurance plans in this area (ZIP 49440)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | MI | 71250 | CT scan chest | 21 | 21 |
| DIAGNOSTIC RADIOLOGY | MI | 73562 | X-ray of knee, 3 views | 23 | 22 |
| DIAGNOSTIC RADIOLOGY | MI | 73630 | X-ray of foot, minimum of 3 views | 71 | 68 |
| DIAGNOSTIC RADIOLOGY | MI | 76830 | Ultrasound pelvis through vagina | 16 | 16 |
| DIAGNOSTIC RADIOLOGY | MI | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 136 | 135 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | MI | |
| Diagnostic Radiology | MI | |
| Diagnostic Radiology | IN | |
| Diagnostic Radiology | MI | |
| Diagnostic Radiology | MI | |
| Physician Assistant | MI | |
| Diagnostic Radiology | MI | |
| Diagnostic Radiology | MI | |
| Diagnostic Radiology | TX | |
| Diagnostic Radiology | MI |
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