What is Oscar Fernandez's specialty?

Oscar Fernandez (NPI 1235166430) is a Medicare-billing provider whose primary specialty is Anesthesiology in Walnut Creek, CA.

Where does Oscar Fernandez practice?

Oscar Fernandez practices in Walnut Creek, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1235166430.

How much does Medicare pay Oscar Fernandez?

Oscar Fernandez (NPI 1235166430) received approximately $32K in total Medicare Part B payments, serving 170 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1235166430

Oscar FernandezMD

PRACTICEJOHN MUIR HEALTHSee all providers at this practice →

AnesthesiologyWalnut Creek, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$7K

Peer benchmark

Total Medicare services vs. 4,547 Anesthesiology providers in CA — above median (cohort median 182).

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.

REFERRAL NETWORK

Where Oscar Fernandez'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
Sequoia Surgical Center Lp Ambulatory Surgical Center · Walnut Creek, CA	63	64
JOHN MUIR HEALTH	13	15

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