ALLEN D. EFRON (MD) – Neurological Surgery Physician, NPI 1831277482
Neurological Surgery Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
795 NEUROSURGERY in CA
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Provider Addresses for ALLEN D. EFRON (MD)
Harrison Street, Chinatown, Oakland, Alameda County, California, 94607, United States
OAKLAND, CA 946123466
Phone: (510) 625-6262
Type: Mailing
Kaiser Permanente Tower Building, 1150, Veterans Boulevard, Redwood City, San Mateo County, California, 94063, United States
REDWOOD CITY, CA 940632037
Phone: (650) 299-2000
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 $118.
Total Amount is formed as General ($118) + Research ($0) + Ownership ($0) = $118.
Last reported payment date: 2023-03-21 • Largest payer in this snapshot: Medtronic, Inc. ($118).
Total Amount
$118
General + Research + Ownership
Payments
1
Total payment records
General Amount
$118
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-03-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $118 |
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: 2022-05-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20050225000802 | I | Neurosurgery | CA | TBD |
| I20220517002051 | I | Neurosurgery | HI | 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 94612)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| P S Y C H I A T R Y | CA | |
| O P T O M E T R Y | HI | |
| - | HI | |
| Physician Assistant | HI | |
| Emergency Medicine | VA | |
| Orthopedic Surgery | HI | |
| Internal Medicine | HI | |
| Orthopedic Surgery | HI | |
| - | HI | |
| - | CO |
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