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Edit this profileWhere to find Michael L. Mahacek, MD
- Grand Rapids location main office
100 Michigan St Ne, Grand Rapids, MI 49503 - Grand Rapids location
145 Michigan St NE Ste 1100, Grand Rapids, MI 49503
About Dr. Mahacek
Based in Grand Rapids, MI, Michael L. Mahacek, MD is listed in the NPI registry under radiation oncology. Michael graduated from Michigan State University College of Human Medicine in 1988. According to Medicare claims data, Michael cared for 606 Medicare patients across 1,312 services. The services billed most often include ct guidance for insertion of radiation therapy fields, ct guidance for insertion of radiation therapy fields, and calculation of radiation therapy dose. NPI 1922021484 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (616) 391-1830
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
100 MICHIGAN ST NE
Grand Rapids, MI 49503
145 Michigan St NE Ste 1100
Grand Rapids, MI 49503
Conditions Commonly Evaluated or Treated
Within Radiation Oncology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cancer care
Most searched conditions
Benign condition
Blood and lymph cancer
Bone cancer
Brain tumors
Cancer emergencies
Chest cancer
Endocrine cancer
Eye cancer
Eye conditions
Foot conditions
Gastrointestinal cancer
- Anal cancer
- Bile duct cancer
- Colon cancer
- Esophageal cancer
- Gallbladder cancer
- Liver cancer
- Pancreatic cancer
- Stomach cancer
Gynecologic cancer
Head & neck cancer
Head and neck cancer
Metastatic cancer
Neurologic condition
Orthopedic conditions
Sarcoma
Skin cancer
Thoracic cancer
Urologic cancer
Vascular conditions
Procedures & services
Most searched procedures
Advanced radiation
Benign treatment
Brain radiation
Cancer treatment
Central nervous system
Consultation
External radiation
- Electron beam therapy
- Image-guided radiation (IGRT)
- IMRT (Targeted intensity radiation)
- RapidArc / VMAT radiation
- Total body irradiation (TBI)
Eye cancer treatment
Follow-up care
Heart treatments
Internal radiation
Pain and symptom relief
Particle therapy
Precision radiation
- Adaptive radiation therapy
- Heart-sparing breath hold radiation (DIBH)
- Spine radiosurgery
- Stereotactic body radiation (SBRT)
- Stereotactic radiosurgery (SRS)
- Tattoo-free radiation
Prostate cancer treatment
Prostate protection
Radiation therapy
Skin cancer treatment
Skin lymphoma treatment
Specialized radiation
Targeted isotopes
Targeted radiation drugs
Treatment planning
Procedures Most Often Billed to Medicare
1,312 services · 606 patients · 22 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
363 | As often as other peers in Radiation Oncology |
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
197 | As often as other peers in Radiation Oncology |
| Calculation of radiation therapy dose | Imaging | 77300 |
144 | As often as other peers in Radiation Oncology |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
133 | As often as other peers in Radiation Oncology |
| Design and construction of complex radiation treatment device | Imaging | 77334 |
90 | As often as other peers in Radiation Oncology |
| Design and construction of radiation treatment device for high precision radiation therapy | Imaging | 77338 |
41 | More often than most peers in Radiation Oncology |
| Design and construction of complex radiation treatment device | Imaging | 77334 |
36 | As often as other peers in Radiation Oncology |
| Complex radiation therapy planning | Imaging | 77263 |
35 | As often as other peers in Radiation Oncology |
| Calculation of radiation therapy dose | Imaging | 77300 |
31 | As often as other peers in Radiation Oncology |
| High precision radiation therapy planning | Imaging | 77301 |
23 | Less often than most peers in Radiation Oncology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other radiation oncologists in Grand Rapids 8
Same specialty, same city.
Trained at Michigan State University College of Human Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1988 at Michigan State University College of Human Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Ct guidance for insertion of radiation therapy fields 8
Providers in MI who bill this service to Medicare most often.
Common questions
What is Dr. Mahacek's specialty?
Dr. Mahacek is a radiation oncologist in Grand Rapids, MI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Radiation Oncology”.
NPI registry
Where can I find Dr. Mahacek?
Dr. Mahacek is listed at 100 Michigan St Ne, Grand Rapids, MI 49503. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mahacek?
The number on file is (616) 391-1830. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Mahacek's NPI number?
Dr. Mahacek's National Provider Identifier is 1922021484. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Mahacek's medical education?
Dr. Mahacek attended Michigan State University College of Human Medicine, graduating in 1988. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mahacek been practicing?
Dr. Mahacek has 38 years experience. Calculated from a graduation year of 1988, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mahacek known for?
According to Medicare billing data, Dr. Mahacek performs imaging including ct guidance for insertion of radiation therapy fields and calculation of radiation therapy dose, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mahacek confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mahacek. If this is you, claiming it is free.
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