What is Mark Berk's specialty?

Mark Berk (NPI 1235196858) is a Medicare-billing provider whose primary specialty is Dermatology in Lake Forest, IL.

Where does Mark Berk practice?

Mark Berk practices in Lake Forest, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1235196858.

How much does Medicare pay Mark Berk?

Mark Berk (NPI 1235196858) received approximately $410K in total Medicare Part B payments, serving 1,555 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1235196858

Mark BerkM.D.

PRACTICENORTH SHORE RHEUMATOLOGYSee all providers at this practice →

DermatologyLake Forest, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

4,465

Unique beneficiaries

—

Total services

7,078

Distinct HCPCS

Medicare payment

$388K

Peer benchmark

Total Medicare services vs. 480 Dermatology providers in IL — top quintile (cohort median 2,329).

PRESCRIBING · PART D · 2024

Total Rx claims

1,628

Beneficiaries

—

Total drug cost

$1.0M

Distinct drugs

Brand share

9.6%

Top prescribed drugs

Mupirocin223 claims

Ketoconazole188 claims

Fluticasone Propionate141 claims

Triamcinolone Acetonide128 claims

Betamethasone Dipropionate110 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$267

Payment records

By payment type

Education$172

Food and Beverage$95

Top paying entities

Education$172

Food and Beverage$95

REFERRAL NETWORK

Where Mark Berk'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). 21 inbound referrers · 46 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Consolidated Pathology Consultants, Sc Clinical Laboratory · Libertyville, IL	701	1,235
ENDEAVOR HEALTH CLINICAL OPERATIONS	208	510
NORTHWESTERN LAKE FOREST HOSPITAL	144	314
ADVOCATE CONDELL MEDICAL CENTER	45	107
NORTHWESTERN MEMORIAL HEALTHCARE	36	60
CENTRAL DUPAGE HOSPITAL ASSOCIATION	25	35
Kristopher Atzeff Urology · Libertyville, IL	19	35
Bradley Ruff Ophthalmology · Lake Forest, IL	18	28
HEBEL, DONALD	17	45
John Lin Internal Medicine · Lake Bluff, IL	17	137
Scott Braunlich Internal Medicine · Lake Forest, IL	17	112
ADVOCATE HEALTH AND HOSPITALS CORPORATION	15	31

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
ENDEAVOR HEALTH CLINICAL OPERATIONS	176	451
NORTHWESTERN LAKE FOREST HOSPITAL	135	256
A2cl Services, Llc Clinical Laboratory · West Allis, WI	106	246
ENDEAVOR HEALTH CLINICAL OPERATIONS	101	220
Quest Diagnostics Llc Il Clinical Laboratory · Wood Dale, IL	90	235
Consolidated Pathology Consultants, Sc Clinical Laboratory · Libertyville, IL	77	123
ADVOCATE NORTH SIDE HEALTH NETWORK	57	110
ADVOCATE CONDELL MEDICAL CENTER	50	103
Jordan Carqueville Dermatology · Chicago, IL	47	72
NORTHWESTERN MEMORIAL HEALTHCARE	42	66
Gina Dillig Dermatology · Hinsdale, IL	37	61
CENTRAL DUPAGE HOSPITAL ASSOCIATION	29	49

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