What is Deirdra Greathouse-Williams's specialty?

Deirdra Greathouse-Williams (NPI 1871549238) is a Medicare-billing provider whose primary specialty is Family Practice in New Lenox, IL.

Where does Deirdra Greathouse-Williams practice?

Deirdra Greathouse-Williams practices in New Lenox, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1871549238.

How much does Medicare pay Deirdra Greathouse-Williams?

Deirdra Greathouse-Williams (NPI 1871549238) received approximately $48K in total Medicare Part B payments, serving 140 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1871549238

Deirdra Greathouse-WilliamsMD

Family PracticeNew Lenox, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

237

Unique beneficiaries

—

Total services

502

Distinct HCPCS

Medicare payment

$41K

Peer benchmark

Total Medicare services vs. 3,221 Family Practice providers in IL — below median (cohort median 556).

PRESCRIBING · PART D · 2024

Total Rx claims

3,352

Beneficiaries

—

Total drug cost

$79K

Distinct drugs

Brand share

17.6%

Top prescribed drugs

Amlodipine Besylate233 claims

Levothyroxine Sodium174 claims

Pantoprazole Sodium150 claims

Levocetirizine Dihydrochloride138 claims

Metformin Hcl119 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Deirdra Greathouse-Williams'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). 23 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
TYLER, JEFFRY	64	144
Gregory Price Diagnostic Radiology · Joliet, IL	56	152
Andre Edwards Diagnostic Radiology · New Lenox, IL	49	122
Corinne Nawrocki Family Practice · New Lenox, IL	49	166
Kerry Marcheschi Family Practice · New Lenox, IL	41	111
Aaron Guajardo Diagnostic Radiology · Joliet, IL	41	95
Jitinder Singh Family Practice · New Lenox, IL	36	89
Abdul Sankari Cardiology · New Lenox, IL	32	65
Nisha Patel Diagnostic Radiology · Joliet, IL	23	69
John Dongas Clinical Cardiac Electrophysiology · New Lenox, IL	21	83
Parag Jain Cardiology · New Lenox, IL	21	52
PRESENCE CENTRAL AND SUBURBAN HOSPITALS NETWORK	18	53

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