What is David Lewis's specialty?

David Lewis (NPI 1528077856) is a Medicare-billing provider whose primary specialty is Anesthesiology in Fremont, CA.

Where does David Lewis practice?

David Lewis practices in Fremont, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1528077856.

How much does Medicare pay David Lewis?

David Lewis (NPI 1528077856) received approximately $34K in total Medicare Part B payments, serving 260 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1528077856

David LewisM.D.

AnesthesiologyFremont, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

184

Unique beneficiaries

—

Total services

184

Distinct HCPCS

Medicare payment

$21K

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 David Lewis'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). 8 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
John Dearborn Orthopedic Surgery · Menlo Park, CA	57	216
Keith Jeffrey Physician Assistant · Fremont, CA	55	95
Mimi Lin Diagnostic Radiology · Fremont, CA	41	60
Jacob Wouden Diagnostic Radiology · Fremont, CA	39	71
Alexander Sah Orthopedic Surgery · Fremont, CA	31	117
Kelly Haws Physician Assistant · Menlo Park, CA	13	15
William Nicholson Cardiology · Fremont, CA	12	14
Pradeep Kumar Cardiology · Fremont, CA	12	20

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