What is Brian Johnston's specialty?

Brian Johnston (NPI 1508269192) is a Medicare-billing provider whose primary specialty is Physician Assistant in Los Gatos, CA.

Where does Brian Johnston practice?

Brian Johnston practices in Los Gatos, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1508269192.

How much does Medicare pay Brian Johnston?

Brian Johnston (NPI 1508269192) received approximately $19K in total Medicare Part B payments, serving 178 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1508269192

Brian JohnstonP.A.

PRACTICESUTTER BAY MEDICAL FOUNDATIONSee all providers at this practice →

Physician AssistantLos Gatos, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

172

Unique beneficiaries

—

Total services

188

Distinct HCPCS

Medicare payment

$15K

Peer benchmark

Total Medicare services vs. 7,073 Physician Assistant providers in CA — above median (cohort median 224).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$2K

Distinct drugs

Brand share

16.1%

Top prescribed drugs

Levothyroxine Sodium39 claims

Nirmatrelvir/Ritonavir15 claims

Azithromycin13 claims

Cephalexin13 claims

Quetiapine Fumarate13 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Brian Johnston'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). 0 inbound referrers · 2 outbound destinations.

Receives referrals from

Inbound — who sends patients here

No inbound pairs above the suppression threshold.

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
O'CONNOR HOSPITAL	30	51
Anjali Sagdeo Internal Medicine · Los Gatos, CA	28	55

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