What is Martha Diaz's specialty?

Martha Diaz (NPI 1538481882) is a Medicare-billing provider whose primary specialty is Physician Assistant in New Haven, CT.

Where does Martha Diaz practice?

Martha Diaz practices in New Haven, CT, based on the location reported in the CMS Medicare provider datasets for NPI 1538481882.

How much does Medicare pay Martha Diaz?

Martha Diaz (NPI 1538481882) received approximately $15K in total Medicare Part B payments, serving 116 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1538481882

Martha DiazPA-C

Physician AssistantNew Haven, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

186

Unique beneficiaries

—

Total services

450

Distinct HCPCS

Medicare payment

$14K

Peer benchmark

Total Medicare services vs. 2,222 Physician Assistant providers in CT — top quintile (cohort median 156).

PRESCRIBING · PART D · 2024

Total Rx claims

650

Beneficiaries

—

Total drug cost

$1.6M

Distinct drugs

Brand share

41.1%

Top prescribed drugs

Ondansetron97 claims

Prochlorperazine Maleate95 claims

Dexamethasone63 claims

Olaparib45 claims

Oxycodone Hcl42 claims

QUALITY · MIPS · 2024

Final MIPS score

87.4

Quality

77.4

Cost

74.3

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.52%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Martha 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). 5 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
NPI 1033107107	39	101
Quest Diagnostics Llc Clinical Laboratory · Wallingford, CT	33	90
Masoud Azodi Gynecological Oncology · New Haven, CT	28	94
Andrea Brennan Physician Assistant · New Haven, CT	17	38
Dan-Arin Silasi Obstetrics & Gynecology · Saint Louis, MO	13	45

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