DR. LEENA MAMMEN (MD) – Diagnostic Radiology Physician, NPI 1275568826
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
248 RADIATION ONCOLOGY in MI
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Provider Addresses for DR. LEENA MAMMEN (MD)
Evergreen Drive Northeast, Evergreen Lake Condominiums, Grand Rapids Charter Township, Kent County, Michigan, 49525, United States
GRAND RAPIDS, MI 495259746
Phone: (616) 363-7272
Fax: (616) 363-7290
Type: Location
3186 VILLAGE DR STE 201
FAYETTEVILLE, NC 283043979
Phone: (910) 486-5700
Fax: (910) 486-5950
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $222.
Total Amount is formed as General ($222) + Research ($0) + Ownership ($0) = $222.
Last reported payment date: 2024-07-02 • Largest payer in this snapshot: Siemens Medical Solutions USA, Inc. ($222).
Total Amount
$222
General + Research + Ownership
Payments
1
Total payment records
General Amount
$222
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-02
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Siemens Medical Solutions USA, Inc. | $222 |
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: 2026-03-10
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 4 Medicare enrollment records; no due dates published yet.
Enrollment records
4
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 |
|---|---|---|---|---|
| I20041116000216 | I | Diagnostic Radiology | MI | TBD |
| I20230829000631 | I | Diagnostic Radiology | CA | TBD |
| I20260105000474 | I | Radiation Oncology | IL | TBD |
| I20260310004276 | I | Diagnostic Radiology | AZ | 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 |
|---|---|---|---|---|
| 71045 | X-ray of chest, 1 view | 365 | 315 | $0 |
| 74177 | Ct scan of abdomen and pelvis with contrast | 298 | 295 | $0 |
| 71250 | Ct scan of chest without contrast | 268 | 263 | $0 |
| 76376 | 3d radiographic procedure | 239 | 232 | $0 |
| 74176 | Ct scan of abdomen and pelvis without contrast | 230 | 228 | $0 |
Insurance plans in this area (ZIP 49525)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | MI | 71010 | X-ray of chest, 1 view, front | 120 | 111 |
| DIAGNOSTIC RADIOLOGY | MI | 71250 | CT scan chest | 67 | 65 |
| DIAGNOSTIC RADIOLOGY | MI | 74177 | CT scan of abdomen and pelvis with contrast | 42 | 42 |
| DIAGNOSTIC RADIOLOGY | MI | 76830 | Ultrasound pelvis through vagina | 18 | 18 |
| DIAGNOSTIC RADIOLOGY | MI | 93971 | Ultrasound scan of veins of one arm or leg or limited including assessment of compression and functional maneuvers | 39 | 39 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | MI | |
| Internal Medicine | MI | |
| Internal Medicine | MI | |
| Physician Assistant | MI | |
| Emergency Medicine | OH | |
| Emergency Medicine | MI | |
| Emergency Medicine | MI | |
| Nurse Practitioner | MI | |
| Diagnostic Radiology | MI | |
| Physician Assistant | MI |
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