DR. TIMOTHY L CANNON (M.D.) – Medical Oncology Physician, NPI 1376719906
Medical Oncology Physician
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Profile Insights
NPPES metrics only — not quality of care.
4,930 INTERNAL MEDICINE in VA
Provider Addresses for DR. TIMOTHY L CANNON (M.D.)
PO BOX 37174
BALTIMORE, MD 212973174
Phone: (571) 423-5699
Fax: (571) 423-5698
Type: Mailing
Hematology - Oncology Associates, 4501, Empire Court, Fourmile Fork, Fredericksburg, Spotsylvania County, Virginia, 22408, United States
FREDERICKSBURG, VA 224081949
Phone: (540) 371-0079
Fax: (540) 371-4254
Type: Mailing
4501 Empire Ct
Fredericksburg, VA 224081949
Phone: (540) 371-0079
Fax: (540) 656-2653
Type: Location
44055 Riverside Pkwy # 108
Leesburg, VA 201765179
Phone: (703) 858-8600
Fax: (703) 858-8603
Type: Location
3300 Gallows Rd
Falls Church, VA 220423307
Phone: (703) 776-4001
Fax: (703) 776-7113
Type: Location
Innovation Park Drive, Annandale, Fairfax, Virginia, 22037, United States
FAIRFAX, VA 220314867
Phone: (571) 472-4724
Fax: (571) 472-0241
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $4,290.
Total Amount is formed as General ($4,290) + Research ($0) + Ownership ($0) = $4,290.
Last reported payment date: 2024-03-05 • Largest payer in this snapshot: Sirtex Medical Inc ($2,710).
Total Amount
$4,290
General + Research + Ownership
Payments
4
Total payment records
General Amount
$4,290
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Sirtex Medical Inc | $2,710 |
| Mirati Therapeutics, Inc. | $1,488 |
| Astellas Pharma US Inc | $93 |
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: 2015-01-09
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 |
|---|---|---|---|---|
| I20121129000003 | I | Hematology/Oncology | VA | TBD |
| I20150109000114 | I | Medical Oncology | DC | 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 |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 607 | 213 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 110 | 85 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 57 | 37 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 44 | 44 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 29 | 29 | $0 |
Insurance plans in this area (ZIP 21297)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E U R O L O G Y | HI | |
| H E M A T O L O G Y | WA | |
| - | VIR | |
| - | IL | |
| Orthopedic Surgery | VA | |
| - | VA | |
| Diagnostic Radiology | VA | |
| General Surgery | CT | |
| - | VA | |
| N E U R O S U R G E R Y | VA |
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