What is Marc Vanderleeden's specialty?

Marc Vanderleeden (NPI 1801883194) is a Medicare-billing provider whose primary specialty is Endocrinology in Springfield, MA.

Where does Marc Vanderleeden practice?

Marc Vanderleeden practices in Springfield, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1801883194.

How much does Medicare pay Marc Vanderleeden?

Marc Vanderleeden (NPI 1801883194) received approximately $75K in total Medicare Part B payments, serving 409 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1801883194

Marc VanderleedenM.D.

EndocrinologySpringfield, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

851

Unique beneficiaries

—

Total services

1,946

Distinct HCPCS

Medicare payment

$73K

Peer benchmark

Total Medicare services vs. 341 Endocrinology providers in MA — top quintile (cohort median 496).

PRESCRIBING · PART D · 2024

Total Rx claims

5,836

Beneficiaries

—

Total drug cost

$1.8M

Distinct drugs

Brand share

35.1%

Top prescribed drugs

Tirzepatide530 claims

Levothyroxine Sodium431 claims

Atorvastatin Calcium325 claims

Empagliflozin210 claims

Amlodipine Besylate196 claims

QUALITY · MIPS · 2024

Final MIPS score

61.9

Quality

74.2

Cost

82.3

Improvement activities

40.0

Promoting interop.

0.0

Payment adjustment

-1.57%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$989

Payment records

By payment type

Food and Beverage$989

Top paying entities

Food and Beverage$989

REFERRAL NETWORK

Where Marc Vanderleeden'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 · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BAYSTATE MEDICAL CENTER INC	123	422
THE MERCY HOSPITAL INC	64	186
Barry Izenstein Endocrinology · Springfield, MA	19	104
BRODER, MARTIN	14	30
KOENIGS, KENNETH	11	55

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events