Brian D Kastner, MD
Individual provider Active NPI Radiation Oncology Physician · East Grand Rapids, MI
NPI 1396767752 · NPPES record last updated Dec 9, 2025
Key facts
- NPI
- 1396767752
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Radiation Oncology Physician 2085R0001X
- License
- 077557 (MI)
- Practice address
- 1840 Wealthy St SE
East Grand Rapids, MI 49506-2921 - Phone
- (616) 774-7845
- NPI assigned
- Jul 24, 2006
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 2
Hospital & facility affiliations 5
Medicare Care Compare profile
- Specialty
- Radiation Oncology
- Education
- University of Kansas School of Med (KC/Wich/Sal), 1996
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Radiation Oncology Centers PC
Practice addresses (Care Compare)
12642 Riley St
Holland, MI 49424-9202
Phone (616) 355-5330
145 Michigan St NE
Grand Rapids, MI 49503-2562
Phone (616) 486-5750
4499 220TH Ave
Reed City, MI 49677-8593
Phone (231) 832-5817
Hospital & facility affiliations
- Spectrum Health
- Corewell Health Reed City Hospital
- Mercy Health Saint Mary'S
- Corewell Health Big Rapids Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 75 of 100
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled in MI
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20100604001122 | MI | Practitioner - Radiation Oncology | 2365514619 | Reassigns benefits to 1 organization |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 077557 | MI | MD | Radiation Oncology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Lakeshore Area Radiation Oncology Center | Past | Accepting new patients |
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Radiation Oncology Physician | 2085R0001X | 077557 | MI | Yes |
Addresses
Primary practice location
1840 Wealthy St SE
East Grand Rapids, MI 49506-2921
Mailing address
100 Michigan St NE
Grand Rapids, MI 49503-2560
Phone (616) 391-1830
Other practice location 1
145 Michigan St NE Ste 1100
Grand Rapids, MI 49503-2562
Phone (616) 486-5750
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 920006258 | Other | MI | RAILROAD MEDICARE |
| 4311107 | Medicaid | MI |
Other providers in East Grand Rapids, MI
- Kasey Lynn Hagler
- Lydia Marie Henning
- Jennifer Celeste Hunderman
- Carolyn Jordan
- Taylor Jordan
- Matthew Kelly
- Carla L Klimp
- Irene B. Kraegel
- Edward K Lee
- Addison Elizabeth Liggett
All providers in East Grand Rapids, MI · Radiation Oncology Physician in Michigan
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Dec 9, 2025. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.