What is Mark Day's specialty?

Mark Day (NPI 1174679237) is a Medicare-billing provider whose primary specialty is Internal Medicine in Staunton, IL.

Where does Mark Day practice?

Mark Day practices in Staunton, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1174679237.

How much does Medicare pay Mark Day?

Mark Day (NPI 1174679237) received approximately $4K in total Medicare Part B payments, serving 46 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1174679237

Mark DayM.D.

PRACTICECOMMUNITY HOSPITAL OF STAUNTONSee all providers at this practice →

Internal MedicineStaunton, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$2K

Peer benchmark

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

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$15

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Azithromycin15 claims

Prednisone12 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 Mark Day'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). 4 inbound referrers · 11 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Edward Mckenney General Practice · Hamilton, IL	36	107
Victoria Kalivoda -Popela Family Practice · Monmouth, IL	25	45
ALEXANDER, DAVID	13	16
MOORE, WILLIAM	11	13

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
MEMORIAL HOSPITAL ASSOCIATION	114	316
Edward Mckenney General Practice · Hamilton, IL	38	126
Aaron Wesp Internal Medicine · Jersey Village, TX	26	86
HAMMOND HENRY DIST HOSPITAL	25	53
County Of Hancock Ambulance Service Provider · Carthage, IL	21	34
BLESSING HOSPITAL	21	34
Victoria Kalivoda -Popela Family Practice · Monmouth, IL	18	28
Kurtis Davis Family Practice · Lakin, KS	16	36
MOORE, WILLIAM	16	20
Douglas Heighton Family Practice · Carthage, IL	14	27
Gerald Riley Diagnostic Radiology · Quincy, IL	11	15

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