MARK K ONO (MD) – Radiation Oncology Physician, NPI 1427022144
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
18 RADIATION ONCOLOGY in DE
Provider Addresses for MARK K ONO (MD)
640 S State St
Dover, DE 199013530
Phone: (302) 744-7000
Type: Location
PO BOX 4571
SCOTTSDALE, AZ 852614571
Phone: (480) 254-8613
Type: Location
Chandler Post Office, Carlton Avenue, Chandler, Murray County, Minnesota, 56122, United States
CHANDLER, AZ 852466423
Phone:
Type: Mailing
6111, East Arbor Avenue, New Hope Trailer Park, Mesa, Maricopa County, Arizona, 85206, United States
MESA, AZ 852066059
Phone: (480) 981-1326
Fax: (480) 981-1445
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $639.
Total Amount is formed as General ($639) + Research ($0) + Ownership ($0) = $639.
Last reported payment date: 2024-06-25 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($525).
Total Amount
$639
General + Research + Ownership
Payments
7
Total payment records
General Amount
$639
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-25
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2026-02-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 6 Medicare enrollment records; no due dates published yet.
Enrollment records
6
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 |
|---|---|---|---|---|
| I20051005000305 | I | Radiation Oncology | AZ | TBD |
| I20240314004112 | I | Radiation Oncology | TX | TBD |
| I20240606002550 | I | Radiation Oncology | OH | TBD |
| I20241219002974 | I | Radiation Oncology | MI | TBD |
| I20250812003563 | I | Radiation Oncology | GA | TBD |
| I20260201000080 | I | Radiation 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 19901)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | MD | |
| H E M A T O L O G Y/ O N C O L O G Y | DE | |
| Nurse Practitioner | DE | |
| - | DE | |
| Family Practice | MI | |
| O B S T E T R I C S/ G Y N E C O L O G Y | DE | |
| Medical Oncology | DE | |
| Physician Assistant | DE | |
| Certified Nurse Midwife (Cnm) | DE | |
| Pediatric Medicine, Family Practice | DE |
Reviews
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