What is Gregory Gerstner's specialty?

Gregory Gerstner (NPI 1629288659) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Peoria, IL.

Where does Gregory Gerstner practice?

Gregory Gerstner practices in Peoria, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1629288659.

How much does Medicare pay Gregory Gerstner?

Gregory Gerstner (NPI 1629288659) received approximately $6.1M in total Medicare Part B payments, serving 1,262 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1629288659

Gregory GerstnerM.D.

PRACTICEONCOLOGY HEMATOLOGY ASSOCIATES OF CENTRAL IL, PCSee all providers at this practice →

Hematology-OncologyPeoria, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

7,120

Unique beneficiaries

—

Total services

246,517

Distinct HCPCS

Medicare payment

$3.1M

Peer benchmark

Total Medicare services vs. 444 Hematology-Oncology providers in IL — top quintile (cohort median 1,266).

PRESCRIBING · PART D · 2024

Total Rx claims

3,145

Beneficiaries

—

Total drug cost

$7.6M

Distinct drugs

Brand share

26.3%

Top prescribed drugs

Acyclovir226 claims

Levothyroxine Sodium211 claims

Dexamethasone208 claims

Prochlorperazine Maleate146 claims

Hydroxyurea139 claims

QUALITY · MIPS · 2024

Final MIPS score

79.1

Quality

72.2

Cost

59.8

Improvement activities

40.0

Promoting interop.

86.0

Payment adjustment

0.17%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Gregory Gerstner's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 91 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SAINT FRANCIS MEDICAL CENTER	436	3,721
METHODIST MEDICAL CENTER OF ILLINOIS	253	1,589
KNOST, JAMES	228	1,606
Paul Fishkin Hematology-Oncology · Peoria, IL	222	1,464
Jijun Liu Medical Oncology · Peoria, IL	181	1,759
Nguyet Le-Lindqwister Hematology-Oncology · Peoria, IL	181	898
Diane Prager Medical Oncology · Torrance, CA	169	1,263
TAUKE, KIMBERLY	153	1,278
Gary Macvicar Hematology-Oncology · Peoria, IL	78	578
PATTEKAR, MANDAR	77	225
Steven Lukancic Diagnostic Radiology · Peoria, IL	73	298
Garima Agrawal Nuclear Medicine · Saint Louis, MO	72	240

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history