Physician Profile
Unclaimed ProfileAbout GIANNONE
Based in Springfield, IL, Leonard Giannone, MD is listed in the NPI registry under hematology/oncology. Leonard graduated from University of Chicago, Pritzker School of Medicine in 1979. Leonard is also listed as specializing in hematology & oncology. Medicare claims data shows Leonard provided 9,197 services to 292 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (217) 528-7541
- Email not available
Practice Locations
900 N. 1ST STREET
Springfield, IL 62702
Procedures Most Often Billed to Medicare
9,197 services · 292 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
25 |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
102 |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
63 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
45 |
| Injection, iron sucrose, 1 mg | Drug given | J1756 |
8,200 |
| Infusion, normal saline solution, 250 cc | Drug given | J7050 |
290 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
372 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
69 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
31 |
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 hematology/oncology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
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 hematology/oncology specialists in Springfield 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Chicago, Pritzker School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1979 at University of Chicago, Pritzker School of Medicine 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 does Dr. Giannone specialize in?
Dr. Giannone is a hematology/oncology in Springfield, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “HEMATOLOGY/ONCOLOGY”.
NPI registry
Where is Dr. Giannone located?
Dr. Giannone is listed at 900 N. 1ST STREET, Springfield, IL 62702. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Giannone's phone number?
The number on file is (217) 528-7541. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Giannone?
Dr. Giannone's National Provider Identifier is 1245297571. 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
Where did Dr. Giannone go to medical school?
Dr. Giannone attended University of Chicago, Pritzker School of Medicine, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Giannone have?
Dr. Giannone has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Giannone do most often?
According to Medicare billing data, Dr. Giannone performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 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. Giannone's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Giannone. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.