BRIAN D KASTNER (MD) – Radiation Oncology Physician, NPI 1396767752
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
248 RADIATION ONCOLOGY in MI
Provider Addresses for BRIAN D KASTNER (MD)
145 Michigan St NE Ste 1100
Grand Rapids, MI 495032562
Phone: (616) 486-5750
Type: Location
Spectrum Health Butterworth Hospital, 100, Michigan Street Northeast, Grand Rapids, Kent County, Michigan, 49503, United States
GRAND RAPIDS, MI 495032560
Phone: (616) 391-1830
Type: Mailing
1840, Wealthy Street Southeast, East Grand Rapids, Kent County, Michigan, 49506, United States
EAST GRAND RAPIDS, MI 495062921
Phone: (616) 774-7845
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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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: 2010-06-04
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 |
|---|---|---|---|---|
| I20100604001122 | I | Radiation Oncology | MI | 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 | 499 | 147 | $0 |
| 77300 | Calculation of radiation therapy dose | 109 | 32 | $0 |
| 77334 | Design and construction of complex radiation treatment device | 107 | 67 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 91 | 75 | $0 |
| G6002 | Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 75 | 25 | $0 |
Insurance plans in this area (ZIP 49503)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Radiation Oncology | AL | |
| Radiation Oncology | MI | |
| Radiation Oncology | MI | |
| Radiation Oncology | MI | |
| Radiation Oncology | MI | |
| Radiation Oncology | MI | |
| Radiation Oncology | MI | |
| - | MI | |
| Radiation Oncology | MI |
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