JOHN VAUGHN SIEBEL (M.D.) – Medical Oncology Physician, NPI 1780741306
Medical Oncology Physician
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for JOHN VAUGHN SIEBEL (M.D.)
DeBarr Road, Anchorage, Alaska, 99598, United States
ANCHORAGE, AK 995082974
Phone: (907) 279-3155
Fax: (907) 257-9856
Type: Mailing
De Anza Boulevard, San Mateo, San Mateo County, California, 94402, United States
SAN MATEO, CA 944023913
Phone: (650) 341-9131
Fax: (650) 341-9135
Type: Location
1250 Idaho St
Lewiston, ID 835011965
Phone: (208) 743-7427
Fax: (208) 743-7421
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: 2009-01-28
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 |
|---|---|---|---|---|
| I20090128000074 | I | Medical Oncology | 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 99508)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| General Surgery | UT | |
| - | ID | |
| Interventional Radiology | WA | |
| Nurse Practitioner | WA | |
| Family Practice | ID | |
| - | ID | |
| Nurse Practitioner | ID | |
| H E M A T O L O G Y/ O N C O L O G Y | ID | |
| General Surgery | CO | |
| Orthopedic Surgery | ID |
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