What is Parker Duncan Diaz's specialty?

Parker Duncan Diaz (NPI 1033434923) is a Medicare-billing provider whose primary specialty is Family Practice in Santa Rosa, CA.

Where does Parker Duncan Diaz practice?

Parker Duncan Diaz practices in Santa Rosa, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1033434923.

How much does Medicare pay Parker Duncan Diaz?

Parker Duncan Diaz (NPI 1033434923) received approximately $113 in total Medicare Part B payments, serving 15 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1033434923

Parker Duncan DiazMD, MPH, FAAFP

PRACTICEST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLCSee all providers at this practice →

Family PracticeSanta Rosa, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$113

Peer benchmark

Total Medicare services vs. 8,228 Family Practice providers in CA — bottom quintile (cohort median 411).

PRESCRIBING · PART D · 2024

Total Rx claims

1,096

Beneficiaries

—

Total drug cost

$113K

Distinct drugs

Brand share

21.0%

Top prescribed drugs

Atorvastatin Calcium105 claims

Metformin Hcl89 claims

Empagliflozin63 claims

Hydrocodone/Acetaminophen62 claims

Omeprazole52 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.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (3)

CCN 058189

Home health agency

CCN 050174

Hospital

CCN 050291

Hospital

REFERRAL NETWORK

Where Parker Duncan 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). 2 inbound referrers · 5 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SANTA ROSA COMMUNITY HEALTH CENTERS	43	184
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC	19	53

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
SANTA ROSA COMMUNITY HEALTH CENTERS	75	376
Unilab Corporation Clinical Laboratory · Sacramento, CA	39	93
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC	19	58
Marie Mulligan General Practice · Santa Rosa, CA	14	38
SUTTER BAY HOSPITALS	14	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