DR. WILLIAM P DILLON (MD) – Neuroradiology Physician, NPI 1386609337
Neuroradiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,800 DIAGNOSTIC RADIOLOGY in CA
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Provider Addresses for DR. WILLIAM P DILLON (MD)
1635, Divisadero Street, Western Addition, San Francisco, California, 94115, United States
STE 625, BOX 1821
SAN FRANCISCO, CA 941430001
Phone:
Type: Mailing
University of California Medical Center, 505, Parnassus Avenue, Cole Valley, San Francisco, California, 94143, United States
SAN FRANCISCO, CA 941432204
Phone: (415) 353-1668
Fax: (415) 353-8593
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 $117.
Total Amount is formed as General ($117) + Research ($0) + Ownership ($0) = $117.
Last reported payment date: 2024-02-14 • Largest payer in this snapshot: Boston Scientific Corporation ($117).
Total Amount
$117
General + Research + Ownership
Payments
1
Total payment records
General Amount
$117
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-02-14
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $117 |
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: 2008-03-04
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 |
|---|---|---|---|---|
| I20080304000927 | I | Diagnostic Radiology | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 70450 | Ct scan head or brain without contrast | 83 | 76 | $0 |
| 77012 | Review by radiologist of ct guidance for needle placement | 43 | 41 | $0 |
| 70553 | Mri scan of brain before and after contrast | 41 | 40 | $0 |
| 70496 | Ct scan of blood vessels of head with contrast | 32 | 32 | $0 |
| 70498 | Ct scan of blood vessels of neck with contrast | 32 | 32 | $0 |
Insurance plans in this area (ZIP 94143)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DIAGNOSTIC RADIOLOGY | CA | 77012 | Radiological supervision and interpretation of CT guidance for needle insertion | 15 | 15 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | CA | |
| Hospitalist, Internal Medicine | CA | |
| - | CA | |
| - | CA | |
| Physician Assistant | CA | |
| - | CA | |
| - | ID | |
| Diagnostic Radiology | CA | |
| - | MD | |
| Orthopedic Surgery | CA |
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