What is Marika Ennis's specialty?

Marika Ennis (NPI 1215249214) is a Medicare-billing provider whose primary specialty is Emergency Medicine in San Jose, CA.

Where does Marika Ennis practice?

Marika Ennis practices in San Jose, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1215249214.

How much does Medicare pay Marika Ennis?

Marika Ennis (NPI 1215249214) received approximately $32K in total Medicare Part B payments, serving 336 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1215249214

Marika EnnisM.D.

Emergency MedicineSan Jose, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

342

Unique beneficiaries

—

Total services

350

Distinct HCPCS

Medicare payment

$30K

Peer benchmark

Total Medicare services vs. 5,287 Emergency Medicine providers in CA — above median (cohort median 355).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$82

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Cephalexin13 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.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 050006

Hospital

CCN 051318

Hospital

REFERRAL NETWORK

Where Marika Ennis'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). 3 inbound referrers · 23 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC	34	79
SUTTER WEST BAY MEDICAL FOUNDATION	22	96
Falck Northern California Corp. Ambulance Service Provider · Hayward, CA	18	37

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
SUTTER BAY HOSPITALS	180	379
American Medical Response West Ambulance Service Provider · Napa, CA	60	130
Anthony Sajewicz Diagnostic Radiology · Santa Rosa, CA	54	130
Falck Northern California Corp. Ambulance Service Provider · Hayward, CA	45	106
BOOTH, SCOTT	36	61
NPI 1619166121	35	68
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC	33	68
Bradley Restel Diagnostic Radiology · Santa Rosa, CA	31	59
SUTTER BAY HOSPITALS	29	74
POPOVICH, MARK	24	43
Unilab Corporation Clinical Laboratory · Sacramento, CA	22	52
Mujeeb Altaf Hospitalist · Santa Rosa, CA	19	33

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