DR. MICHAEL ROBERT SIEDOW (M.D.) – Radiation Oncology Physician, NPI 1891227567
Radiation Oncology Physician
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Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
321 RADIATION ONCOLOGY in OH
Provider Addresses for DR. MICHAEL ROBERT SIEDOW (M.D.)
111 S GRANT AVE
COLUMBUS, OH 432154701
Phone: (614) 566-9506
Type: Location
PO BOX 7527
DUBLIN, OH 430170727
Phone: (614) 788-6010
Type: Mailing
Riverside Family Practice Center, 697, Thomas Lane, Olentangy West, Columbus, Sharon, Franklin, Ohio, 43214, United States
COLUMBUS, OH 432143931
Phone: (720) 480-8737
Type: Mailing
James Cancer Hospital and Solove Research Institute, 460, West Tenth Avenue, University District District 4, Columbus, Franklin, Ohio, 43210, United States
COLUMBUS, OH 432101240
Phone: (614) 293-3255
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $39.
Total Amount is formed as General ($39) + Research ($0) + Ownership ($0) = $39.
Last reported payment date: 2024-09-22 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($21).
Total Amount
$39
General + Research + Ownership
Payments
2
Total payment records
General Amount
$39
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $21 |
| Bayer Healthcare Pharmaceuticals Inc. | $18 |
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: 2022-06-16
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 |
|---|---|---|---|---|
| I20220616000857 | I | Radiation Oncology | OH | 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 | 542 | 76 | $0 |
| 77300 | Calculation of radiation therapy dose | 277 | 67 | $0 |
| 77334 | Design and construction of complex radiation treatment device | 188 | 74 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 175 | 67 | $0 |
| G6002 | Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 101 | 20 | $0 |
Insurance plans in this area (ZIP 43215)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | OH | |
| Nurse Practitioner | OH | |
| Internal Medicine, Family Practice, Urology | OH | |
| Physician Assistant | OH | |
| - | OH | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MN | |
| General Practice | OH | |
| - | OH | |
| Nurse Practitioner | OH | |
| Physician Assistant | OH |
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