STEPHEN ZACHARY PEEKE (M.D.) – Hematology & Oncology Physician, NPI 1013350297
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
11 MEDICAL ONCOLOGY in DE
Provider Addresses for STEPHEN ZACHARY PEEKE (M.D.)
501 RIDGEVIEW DR
HOCKESSIN, DE 197072313
Phone: (302) 584-4527
Type: Mailing
100 WELLNESS WAY
MILFORD, DE 199634364
Phone: (302) 430-5072
Fax: (302) 430-5071
Type: Location
111 E 210TH ST
BRONX, NY 104672401
Phone: (718) 920-4826
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 34 Open Payments records for all available years, with a total value of $954.
Total Amount is formed as General ($954) + Research ($0) + Ownership ($0) = $954.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($320).
Total Amount
$954
General + Research + Ownership
Payments
34
Total payment records
General Amount
$954
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $320 |
| Celgene Corporation | $133 |
| Janssen Biotech, Inc. | $63 |
| Daiichi Sankyo Inc. | $59 |
| Merck Sharp & Dohme LLC | $45 |
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: 2025-11-17
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 |
|---|---|---|---|---|
| I20201106000417 | I | Medical Oncology | NY | TBD |
| I20251117001955 | I | Hematology/Oncology | DE | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 249 | 92 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 135 | 90 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 58 | 27 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 34 | 33 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 27 | 27 | $0 |
Insurance plans in this area (ZIP 19707)
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Group practice members
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