What is David Diaz's specialty?

David Diaz (NPI 1639101058) is a Medicare-billing provider whose primary specialty is General Surgery in Carmel, IN.

Where does David Diaz practice?

David Diaz practices in Carmel, IN, based on the location reported in the CMS Medicare provider datasets for NPI 1639101058.

How much does Medicare pay David Diaz?

David Diaz (NPI 1639101058) received approximately $42K in total Medicare Part B payments, serving 77 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1639101058

David DiazMD

PRACTICEMERIDIAN SURGICAL GROUP, INCSee all providers at this practice →

General SurgeryCarmel, INI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$7K

Peer benchmark

Total Medicare services vs. 454 General Surgery providers in IN — below median (cohort median 270).

PRESCRIBING · PART D · 2024

Total Rx claims

206

Beneficiaries

—

Total drug cost

$2K

Distinct drugs

Brand share

46.1%

Top prescribed drugs

Omeprazole62 claims

Ondansetron49 claims

Oxycodone Hcl/Acetaminophen33 claims

Sucralfate23 claims

Mirtazapine14 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$950

Payment records

By payment type

Food and Beverage$950

Top paying entities

Food and Beverage$950

REFERRAL NETWORK

Where David 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 · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Jennifer Bradley Physician Assistant · Carmel, IN	25	100
SHAW, KAMI	22	49
Margaret Brengle Diagnostic Radiology · Indianapolis, IN	13	53

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