PROVIDER PROFILE · NPI 1972542975

Timothy ErnstM.D.

Medical OncologyNatick, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

421

Unique beneficiaries

—

Total services

594

Distinct HCPCS

Medicare payment

$50K

Peer benchmark

Total Medicare services vs. 257 Medical Oncology providers in MA — top quintile (cohort median 290).

PRESCRIBING · PART D · 2024

Total Rx claims

125

Beneficiaries

—

Total drug cost

$322K

Distinct drugs

Brand share

73.6%

Top prescribed drugs

Apixaban53 claims

Hydroxyurea33 claims

Rivaroxaban17 claims

Acalabrutinib Maleate11 claims

Eltrombopag Olamine11 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Timothy Ernst'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). 33 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Melissa Woolwine Nurse Practitioner · Natick, MA	56	161
CHARLES RIVER MEDICAL ASSOCIATES, PC	39	114
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	38	96
LAGUARDA, RAUL	38	175
Jill Reinherz Diagnostic Radiology · New York, NY	35	185
Jeff Velez Interventional Radiology · Medford, MA	33	147
BICK, RONALD	33	80
Erica Gupta Diagnostic Radiology · Framingham, MA	32	74
Michelle Swire Diagnostic Radiology · Framingham, MA	32	101
MORRIS, MARY LOU	30	111
Deborah Markowitz Pulmonary Disease · Worcester, MA	30	113
GARCIA, LINNEA	28	77

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