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- 675 N Saint Clair St, Galter 21-100, Chicago, IL 60611
About Dr. Gradishar
William Gradishar, MD is a healthcare provider in Chicago, IL specializing in medical oncology. William trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 1982. Medicare claims data shows William provided 50,082 services to 939 patients. The services billed most often include injection, fam-trastuzumab deruxtecan-nxki, 1 mg, injection, fosaprepitant, 1 mg, and injection, denosumab, 1 mg. This provider record is associated with NPI 1437187929.
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
- (312) 695-0990
- Email not available
Practice Locations
675 N SAINT CLAIR ST GALTER 21-100
Chicago, IL 60611
Conditions Commonly Evaluated or Treated
Within Medical 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
Most searched conditions
- Anemia
- Blood clots
- Breast cancer
- Colon cancer
- Iron-deficiency anemia
- Leukemia
- Lung cancer
- Lymphoma
- Prostate cancer
Abdominal cancer
Blood cancer
Blood disorders
Cancer complications
Chest cancer
Complications
Digestive cancer
Digestive cancers
Endocrine cancer
Endocrine cancers
Eye cancer
General oncology
Genetic risk
Gynecologic cancer
Gynecologic cancers
Head and neck
Head and neck cancer
Metastatic cancer
Metastatic disease
Neurologic cancers
Sarcomas
Skin cancer
Symptom evaluation
Thoracic cancers
Treatment side effects
Urologic cancer
Urologic cancers
Procedures & services
Pain & wellness
Most searched procedures
Cancer treatment care
Complication management
Consultations
- Cancer survivorship care
- Integrative oncology consultation
- Post-cancer surveillance scan review
- Pre-Surgery Chemotherapy Consultation
- Preventative Chemotherapy Consultation
- Radiopharmaceutical therapy consultation
- Second Opinion For Cancer
- Stem cell transplant consultation
- Tumor Board Case Review
Diagnostic testing
Diagnostics
- Bone Marrow Biopsy
- Cancer Genetic Testing
- Pathology second opinion for cancer
- Tumor Biomarker Testing
Infusions
- Bone Strengthening Infusion
- Iron Infusion
- IV hydration for cancer patients
- Neurologic infusion treatment
Injections
Medication management
Patient education
Port and line care
Procedures
Specialized treatments
- Bladder instillation therapy
- Heated Chemotherapy Consultation
- Hepatic Artery Pump Chemotherapy Consultation
Specialty treatments
- Bone Strengthening Injections For Cancer
- CAR-T Therapy
- Chemo allergy desensitization
- Clinical Trial Screening
- Hormone Therapy For Cancer
- Spinal chemo injection
Supportive care
- Advance Care Planning For Cancer
- Cancer nutrition counseling
- Cancer pain management
- Cancer Rehabilitation Evaluation
- Cancer weight loss management
- Chemo brain treatment
- Chemo nausea treatment
- Cold cap therapy for hair loss
- Fertility Preservation for Teens Before Cancer Treatment
- Hospice care consultation
- Lymphedema evaluation
- Palliative cancer care
Treatment side effects
Vascular access
Procedures Most Often Billed to Medicare
50,082 services · 939 patients · 21 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
16 | Less often than most peers in Medical Oncology |
| Injection of additional new drug or substance into vein | Treatment | 96375 |
239 | As often as other peers in Medical Oncology |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
210 | As often as other peers in Medical Oncology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
96 | As often as other peers in Medical Oncology |
| Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less | Treatment | 96367 |
92 | As often as other peers in Medical Oncology |
| Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle | Treatment | 96402 |
71 | As often as other peers in Medical Oncology |
| Administration of additional new drug or substance into vein, 1 hour or less | Treatment | 96417 |
55 | As often as other peers in Medical Oncology |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
29 | Less often than most peers in Medical Oncology |
| Application of on-body injector for under skin injection | Treatment | 96377 |
22 | Too few peers to compare |
| Injection, fam-trastuzumab deruxtecan-nxki, 1 mg | Drug given | J9358 |
23,900 | Too few peers to compare |
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.
Other oncologists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 31 related providers in 4 groups
Other oncologists in Chicago 7
Same specialty, same city.
Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Other providers in the same specialty who trained at the same institution.
Class of 1982 at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in IL who bill this service to Medicare most often.
Common questions
What is Dr. Gradishar's specialty?
Dr. Gradishar is an oncologist in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Medical Oncology”.
NPI registry
Where can I find Dr. Gradishar?
Dr. Gradishar is listed at 675 N Saint Clair St Galter 21-100, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Gradishar?
The number on file is (312) 695-0990. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Gradishar?
Dr. Gradishar's National Provider Identifier is 1437187929. 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. Gradishar's medical education?
Dr. Gradishar attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Gradishar have?
Dr. Gradishar has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Gradishar known for?
According to Medicare billing data, Dr. Gradishar performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as injection of additional new drug or substance into vein and administration of chemotherapy into vein, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Gradishar's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gradishar. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.