LEONARD GIANNONE (MD) – Hematology & Oncology Physician, NPI 1245297571

LEONARD GIANNONE (MD) is a healthcare provider. based in Springfield, Illinois. specializing in HEMATOLOGY/ONCOLOGY. They hold the professional credentials MD. They hold a License No. 036061203 (IL). The NPI Number for LEONARD GIANNONE (MD) is 1245297571

Main info

Male
47 Years Of Experience
Accepts Medicare Assignment
Name
LEONARD GIANNONE (MD)
NPI
1245297571
Phone
(217) 528-7541
Address
1025 S 6TH ST
Enumeration Date
28 April 2006
Last Update Date
22 May 2020

Doctor Profile

Medical School Name
UNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Secondary Phone
2175287541
Graduation Year
1979 (47 years ago)
PAC ID
2365452984
Group Practice PAC ID
0547166076
Professional Enrollment ID
I20070703000479
Address ID
IL626263710CA20733STXX400

Contacts

Secure Messaging
leonardgiannone@sfc.allscriptsdirect.net
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

727 HEMATOLOGY/ONCOLOGY in IL

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Provider Addresses for LEONARD GIANNONE (MD)

  • 1025, South 6th Street, South Town, Springfield, Sangamon County, Illinois, 62703, United States

    SPRINGFIELD, IL 627032403

    Phone: (217) 528-7541

    Type: Mailing

  • 900, North 1st Street, Springfield, Sangamon County, Illinois, 62702, United States

    SPRINGFIELD, IL 627023749

    Phone: (217) 528-7541

    Fax: (217) 527-2830

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $22.

Total Amount is formed as General ($22) + Research ($0) + Ownership ($0) = $22.

Last reported payment date: 2024-08-30 • Largest payer in this snapshot: Gilead Sciences, Inc. ($22).

Total Amount

$22

General + Research + Ownership

Payments

1

Total payment records

General Amount

$22

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-08-30

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Gilead Sciences, Inc.$22
View all Open Payments →|Open Payments Risk Radar →

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: 2007-07-03

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

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20070703000479IHematology/OncologyILTBD

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.

Verify on CMS Revalidation Lookup Tool

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

HCPCSDescriptionServicesBeneficiariesMedicare allowed
J1756Injection, iron sucrose, 1 mg11,40012$0
99214Established patient office or other outpatient visit, 30-39 minutes336110$0
J7050Infusion, normal saline solution, 250 cc24522$0
96365Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less10715$0
J9217Leuprolide acetate (for depot suspension), 7.5 mg7311$0
View full utilization report →

Insurance plans in this area (ZIP 62703)

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Provider's Procedures

LEONARD GIANNONE (MD) performs procedures in HEMATOLOGY/ONCOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
HEMATOLOGY/ONCOLOGYIL96367Infusion into a vein for therapy prevention or diagnosis additional sequential infusion up to 1 hour32676
HEMATOLOGY/ONCOLOGYIL96375Injection of different drug or substance into a vein for therapy, diagnosis, or prevention27876

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0547166076View full group profile

Reviews

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Frequently asked questions

Can I verify LEONARD GIANNONE (MD) with an NPI only?
You can start verification with NPI 1245297571 for LEONARD GIANNONE (MD), then check state licensing separately.
Does CMS list LEONARD GIANNONE (MD) as active?
Yes — LEONARD GIANNONE (MD) is active in the NPI listing used on this page.
What taxonomy line describes LEONARD GIANNONE (MD)?
For research purposes, treat LEONARD GIANNONE (MD) as Hematology & Oncology Physician in this dataset. Clinical services aligned with this taxonomy classification.
Does LEONARD GIANNONE (MD) list a practice location?
Patients near Springfield, Illinois may find LEONARD GIANNONE (MD) in results; validate coverage separately.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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