What is Kellyn Marks's specialty?

Kellyn Marks (NPI 1215973599) is a Medicare-billing provider whose primary specialty is Internal Medicine in Chicago, IL.

Where does Kellyn Marks practice?

Kellyn Marks practices in Chicago, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1215973599.

How much does Medicare pay Kellyn Marks?

Kellyn Marks (NPI 1215973599) received approximately $118K in total Medicare Part B payments, serving 323 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1215973599

Kellyn MarksM.D.

Internal MedicineChicago, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,115

Unique beneficiaries

—

Total services

1,359

Distinct HCPCS

Medicare payment

$117K

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

4,102

Beneficiaries

—

Total drug cost

$303K

Distinct drugs

Brand share

17.3%

Top prescribed drugs

Atorvastatin Calcium721 claims

Amlodipine Besylate339 claims

Losartan Potassium323 claims

Rosuvastatin Calcium231 claims

Levothyroxine Sodium197 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 · 2025

Total received

$32

Payment records

By payment type

Food and Beverage$32

Top paying entities

Food and Beverage$32

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

Hospital

Hospital

Hospital

Hospital

Inpatient rehabilitation facility

REFERRAL NETWORK

Where Kellyn Marks'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). 3 inbound referrers · 4 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NORTHWESTERN MEMORIAL HOSPITAL	118	395
REHABILITATION INSTITUTE OF CHICAGO	12	38
WIGGINS, CAROLYN	11	25

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
NORTHWESTERN MEMORIAL HOSPITAL	237	1,151
ENDEAVOR HEALTH CLINICAL OPERATIONS	11	42
REHABILITATION INSTITUTE OF CHICAGO	11	50
Sandra Rao Diagnostic Radiology · Providence, RI	11	20

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