What is Arturo Diaz's specialty?

Arturo Diaz (NPI 1245315852) is a Medicare-billing provider whose primary specialty is Internal Medicine in Boston, MA.

Where does Arturo Diaz practice?

Arturo Diaz practices in Boston, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1245315852.

How much does Medicare pay Arturo Diaz?

Arturo Diaz (NPI 1245315852) received approximately $35K in total Medicare Part B payments, serving 248 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1245315852

Arturo DiazMD

Internal MedicineBoston, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

321

Unique beneficiaries

—

Total services

488

Distinct HCPCS

Medicare payment

$30K

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

1,547

Beneficiaries

—

Total drug cost

$4.3M

Distinct drugs

Brand share

42.3%

Top prescribed drugs

Prednisone173 claims

Hydroxychloroquine Sulfate118 claims

Methotrexate Sodium103 claims

Tocilizumab69 claims

Abatacept67 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$39

Payment records

By payment type

Food and Beverage$39

Top paying entities

Food and Beverage$39

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (5)

Hospital

Hospital

Hospital

Hospital

Hospital

REFERRAL NETWORK

Where Arturo Diaz'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 · 6 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Ronald Eisenberg Diagnostic Radiology · Boston, MA	18	44
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	18	67
BETH ISRAEL DEACONESS HOSPITAL-NEEDHAM, INC.	13	58

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
BETH ISRAEL DEACONESS MEDICAL CENTER, INC.	232	1,894
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	18	52
Colm Mcmahon Diagnostic Radiology · Boston, MA	18	35
Jim Wu Diagnostic Radiology · Boston, MA	16	38
BETH ISRAEL DEACONESS HOSPITAL-NEEDHAM, INC.	12	40
Gary Horowitz Pathology · Boston, MA	12	30

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