What is Gary Gruber's specialty?

Gary Gruber (NPI 1487693610) is a Medicare-billing provider whose primary specialty is Internal Medicine in Chicago, IL.

Where does Gary Gruber practice?

Gary Gruber practices in Chicago, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1487693610.

How much does Medicare pay Gary Gruber?

Gary Gruber (NPI 1487693610) received approximately $159K in total Medicare Part B payments, serving 429 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1487693610

Gary GruberM.D.

PRACTICENORTHWESTERN INTERNISTS, LTDSee all providers at this practice →

Internal MedicineChicago, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,559

Unique beneficiaries

—

Total services

1,889

Distinct HCPCS

Medicare payment

$154K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

4,898

Beneficiaries

—

Total drug cost

$265K

Distinct drugs

Brand share

10.5%

Top prescribed drugs

Atorvastatin Calcium721 claims

Amlodipine Besylate402 claims

Levothyroxine Sodium368 claims

Rosuvastatin Calcium273 claims

Losartan Potassium231 claims

QUALITY · MIPS · 2024

Final MIPS score

95.2

Quality

83.0

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.85%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Gary Gruber'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). 5 inbound referrers · 7 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NORTHWESTERN MEMORIAL HOSPITAL	153	724
REHABILITATION INSTITUTE OF CHICAGO	15	102
WIGGINS, CAROLYN	12	39
DAVISON, RICHARDO	12	45
Ronald Hendrix Diagnostic Radiology · Chicago, IL	11	28

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
NORTHWESTERN MEMORIAL HOSPITAL	223	1,675
MILLER, JOHN	17	46
REHABILITATION INSTITUTE OF CHICAGO	15	94
STRIMLING, ARNOLD	15	44
DAVISON, RICHARDO	13	55
Robert Nadler Urology · Springfield, IL	13	84
Kari Chase Podiatry · Evanston, IL	11	21

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