JAMES MARTIN HAMMEL (MD) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1063461317
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for JAMES MARTIN HAMMEL (MD)
Nebraska Medical Center, 668, South 41st Street, Omaha, Douglas County, Nebraska, 68105, United States
OMAHA, NE 681988102
Phone: (402) 559-4360
Fax: (402) 559-4364
Type: Mailing
100 MICHIGAN ST NE # MC845
GRAND RAPIDS, MI 495032560
Phone:
Type: Mailing
25 MICHIGAN ST NE STE 4200
GRAND RAPIDS, MI 495032559
Phone: (616) 267-9150
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $206.
Total Amount is formed as General ($206) + Research ($0) + Ownership ($0) = $206.
Last reported payment date: 2023-06-13 • Largest payer in this snapshot: Abbott Laboratories ($206).
Total Amount
$206
General + Research + Ownership
Payments
2
Total payment records
General Amount
$206
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-06-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $206 |
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: 2021-07-29
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 |
|---|---|---|---|---|
| I20210729002637 | I | Cardiac Surgery | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 68198)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | NE | |
| Infectious Disease | NE | |
| N E U R O L O G Y | NE | |
| P A T H O L O G Y | NE | |
| Medical Oncology, Hematology/Oncology | NE | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NE | |
| - | NE | |
| G A S T R O E N T E R O L O G Y | NE | |
| Internal Medicine | NE | |
| N E U R O S U R G E R Y | NE |
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