What is Charles Greenberg's specialty?

Charles Greenberg (NPI 1922181189) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Charleston, SC.

Where does Charles Greenberg practice?

Charles Greenberg practices in Charleston, SC, based on the location reported in the CMS Medicare provider datasets for NPI 1922181189.

How much does Medicare pay Charles Greenberg?

Charles Greenberg (NPI 1922181189) received approximately $19K in total Medicare Part B payments, serving 158 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1922181189

Charles Greenberg

PRACTICEMUSCSee all providers at this practice →

Hematology-OncologyCharleston, SCI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

146

Unique beneficiaries

—

Total services

162

Distinct HCPCS

Medicare payment

$15K

Peer benchmark

Total Medicare services vs. 126 Hematology-Oncology providers in SC — bottom quintile (cohort median 1,697).

PRESCRIBING · PART D · 2024

Total Rx claims

370

Beneficiaries

—

Total drug cost

$462K

Distinct drugs

Brand share

94.1%

Top prescribed drugs

Apixaban187 claims

Rivaroxaban150 claims

Avatrombopag Maleate11 claims

Hydroxychloroquine Sulfate11 claims

Warfarin Sodium11 claims

QUALITY · MIPS · 2024

Final MIPS score

79.0

Quality

62.4

Cost

72.7

Improvement activities

40.0

Promoting interop.

99.0

Payment adjustment

0.17%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Charles Greenberg'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). 27 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MEDICAL UNIVERSITY HOSPITAL AUTHORITY	297	2,351
Christine Litwin Pathology · Charleston, SC	55	126
James Ravenel Diagnostic Radiology · Charleston, SC	45	153
NPI 1285742221	30	58
Stephen Schabel Diagnostic Radiology · Charleston, SC	28	72
Angie Duong Pathology · Richmond, VA	27	83
Russell Chapin Diagnostic Radiology · Charleston, SC	26	80
SHANE, LAUREN	25	44
NPI 1457469306	24	73
NPI 1225052137	23	79
ROBISON, JACOB	22	46
Charleston County Government Ambulance Service Provider · North Charleston, SC	20	37

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events