MR. TIMOTHY R. WILLIAMS (M.D.) – Radiation Oncology Physician, NPI 1790731446
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
494 RADIATION ONCOLOGY in FL
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Provider Addresses for MR. TIMOTHY R. WILLIAMS (M.D.)
1599, Northwest 9th Avenue, Boca Raton, Palm Beach County, Florida, 33486, United States
SUITE 201
BOCA RATON, FL 334861310
Phone: (561) 368-4998
Fax: (561) 584-7775
Type: Mailing
Linton Boulevard, Tropic Isle, Delray Beach, Palm Beach County, Florida, 33484, United States
DELRAY BEACH, FL 334846516
Phone: (561) 323-6498
Fax: (561) 584-7775
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 16 Open Payments records for all available years, with a total value of $490.
Total Amount is formed as General ($490) + Research ($0) + Ownership ($0) = $490.
Last reported payment date: 2024-10-30 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($174).
Total Amount
$490
General + Research + Ownership
Payments
16
Total payment records
General Amount
$490
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $174 |
| Seagen Inc. | $112 |
| PALETTE LIFE SCIENCES, INC. | $50 |
| Janssen Biotech, Inc. | $46 |
| Lilly USA, LLC | $34 |
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: 2010-11-22
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 |
|---|---|---|---|---|
| I20101122000800 | I | Radiation Oncology | FL | 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 |
|---|---|---|---|---|
| 77014 | Ct guidance for insertion of radiation therapy fields | 2,464 | 199 | $0 |
| 77523 | Intermediate proton beam radiation treatment | 1,239 | 184 | $0 |
| 77300 | Calculation of radiation therapy dose | 915 | 148 | $0 |
| G6017 | Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment | 759 | 180 | $0 |
| 77336 | Continuing radiation therapy consultation per week | 758 | 168 | $0 |
Insurance plans in this area (ZIP 33486)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| RADIATION ONCOLOGY | FL | 76872 | Ultrasound of rectum | 20 | 20 |
| RADIATION ONCOLOGY | FL | 77263 | Management of radiation therapy, complex | 140 | 134 |
| RADIATION ONCOLOGY | FL | 77300 | Calculation of radiation therapy dose | 1091 | 112 |
| RADIATION ONCOLOGY | FL | 77427 | Radiation treatment management, 5 treatments | 285 | 96 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Radiation Oncology | CA | |
| Radiation Oncology | FL | |
| Radiation Oncology | MD |
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