PROVIDER PROFILE · NPI 1922007962

Michael GrendonM.D.

PRACTICESETH R TANENBAUM MDSee all providers at this practice →

Internal MedicineChicago, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

282

Unique beneficiaries

—

Total services

763

Distinct HCPCS

Medicare payment

$58K

Peer benchmark

Total Medicare services vs. 3,790 Internal Medicine providers in IL — above median (cohort median 760).

PRESCRIBING · PART D · 2024

Total Rx claims

3,317

Beneficiaries

—

Total drug cost

$205K

Distinct drugs

Brand share

16.9%

Top prescribed drugs

Atorvastatin Calcium306 claims

Amlodipine Besylate224 claims

Levothyroxine Sodium193 claims

Furosemide138 claims

Metoprolol Succinate126 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$145

Payment records

By payment type

Food and Beverage$145

REFERRAL NETWORK

Where Michael Grendon'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). 39 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Superior Air-Ground Ambulance Service, Inc Ambulance Service Provider · Elmhurst, IL	63	302
William Sanders Pulmonary Disease · Chicago, IL	40	264
City Of Chicago Ambulance Service Provider · Chicago, IL	37	130
Michael Schwartzman Podiatry · Whiting, IN	31	103
CHAWLA, KAMAL	31	112
Thomas Keane Interventional Radiology · Oak Brook, IL	29	110
CLARIDGE IMPERIAL, LTD	29	228
Jack Lyons Diagnostic Radiology · Chicago, IL	29	115
SWEENY-RYWAK, PATRICIA	25	122
Rachel Brown Physician Assistant · Skokie, IL	24	141
Benjamin Friedman Physical Medicine and Rehabilitation · Chicago, IL	24	340
GILMAN, ALAN	23	398

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