MR. SIMON K. JR. ASHIKU (MD) – Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, NPI 1144302993
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MR. SIMON K. JR. ASHIKU (MD)
275 W MACARTHUR BLVD
OAKLAND, CA 946115641
Phone: (510) 752-1000
Type: Mailing
MacArthur, MacArthur BART Plaza, Mosswood, Oakland, Alameda County, California, 94609, United States
OAKLAND, CA 946115641
Phone: (510) 752-1000
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $1,372.
Total Amount is formed as General ($1,372) + Research ($0) + Ownership ($0) = $1,372.
Last reported payment date: 2024-12-03 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($1,372).
Total Amount
$1,372
General + Research + Ownership
Payments
7
Total payment records
General Amount
$1,372
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-03
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $1,372 |
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: 2010-04-29
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 |
|---|---|---|---|---|
| I20100429000741 | I | Thoracic Surgery | CA | 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 94611)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | DC | |
| Colorectal Surgery (Proctology), General Surgery | LA | |
| - | CA | |
| N E U R O S U R G E R Y | MA | |
| Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Emergency Medicine | CA | |
| - | MA | |
| Emergency Medicine | CA |
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