PROVIDER PROFILE · NPI 1891985800

Mark LewisMD

Internal MedicineMountain View, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

980

Unique beneficiaries

—

Total services

1,780

Distinct HCPCS

Medicare payment

$133K

Peer benchmark

Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).

PRESCRIBING · PART D · 2024

Total Rx claims

4,660

Beneficiaries

—

Total drug cost

$353K

Distinct drugs

Brand share

18.7%

Top prescribed drugs

Amlodipine Besylate323 claims

Levothyroxine Sodium281 claims

Atorvastatin Calcium281 claims

Rosuvastatin Calcium234 claims

Metformin Hcl210 claims

QUALITY · MIPS · 2024

Final MIPS score

23.1

Quality

0.0

Cost

77.0

Improvement activities

0.0

Promoting interop.

0.0

Payment adjustment

-6.23%

Individual

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$266

Payment records

By payment type

Food and Beverage$248

Education$17

Top paying entities

Food and Beverage$248

Education$17

REFERRAL NETWORK

Where Mark 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). 17 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
EL CAMINO HOSPITAL	197	1,088
WEST COAST CLINICAL LABORATORIES, INC.	93	338
Samuel Dawn Diagnostic Radiology · Mountain View, CA	54	345
Daniel Kanada Diagnostic Radiology · Santa Clara, CA	53	261
Imtiaz Qureshi Diagnostic Radiology · Cupertino, CA	28	82
Arthur Douville Neurology · Los Gatos, CA	23	65
David Lewis Internal Medicine · Mountain View, CA	22	109
Shane Dormady Hematology-Oncology · Mountain View, CA	22	202
Andrew Menkes Dermatology · Mountain View, CA	18	96
COLLINGS, CATHERINE	18	69
Neal Scott Internal Medicine · Mountain View, CA	15	85
Ramtin Agah Cardiology · Mountain View, CA	14	70

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