What is Guillermo Perez's specialty?

Guillermo Perez (NPI 1275557506) is a Medicare-billing provider whose primary specialty is Physician Assistant in Greenfield, CA.

Where does Guillermo Perez practice?

Guillermo Perez practices in Greenfield, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1275557506.

How much does Medicare pay Guillermo Perez?

Medicare Part B utilization, prescribing (Part D), MIPS quality scores, and industry payments for Guillermo Perez (NPI 1275557506) are detailed on this CareTrace profile.

PROVIDER PROFILE · NPI 1275557506

Guillermo Perez

PRACTICESOUTHERN MONTEREY COUNTY MEMORIAL HOSPITALSee all providers at this practice →

Physician AssistantGreenfield, CAI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050417

Hospital

REFERRAL NETWORK

Where Guillermo Perez'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 · 3 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Caroline Kennedy Family Practice · Seaside, CA	29	54
COUNTY OF MONTEREY	28	68

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
COUNTY OF MONTEREY	16	43
COUNTY OF MONTEREY	14	19
NPI 1588615629	12	21

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