What is David Harrison's specialty?

David Harrison (NPI 1790775369) is a Medicare-billing provider whose primary specialty is Internal Medicine in Everett, MA.

Where does David Harrison practice?

David Harrison practices in Everett, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1790775369.

How much does Medicare pay David Harrison?

David Harrison (NPI 1790775369) received approximately $34K in total Medicare Part B payments, serving 299 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1790775369

David HarrisonMD

Internal MedicineEverett, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

392

Unique beneficiaries

—

Total services

468

Distinct HCPCS

Medicare payment

$29K

Peer benchmark

Total Medicare services vs. 3,978 Internal Medicine providers in MA — below median (cohort median 564).

PRESCRIBING · PART D · 2024

Total Rx claims

2,805

Beneficiaries

—

Total drug cost

$270K

Distinct drugs

Brand share

17.5%

Top prescribed drugs

Atorvastatin Calcium313 claims

Amlodipine Besylate205 claims

Omeprazole152 claims

Lisinopril136 claims

Metoprolol Succinate115 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 David Harrison'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 · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
THE GENERAL HOSPITAL CORPORATION	133	1,130
David Ting Internal Medicine · Everett, MA	13	45
CAMBRIDGE PUBLIC HEALTH COMMISSION	13	54

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