PROVIDER PROFILE · NPI 1851688873

Marissa WilliamsPA-C

PRACTICEZEPHYRHILLS FAMILY PRACTICE AND GERIATRIC CARE, LLCSee all providers at this practice →

Physician AssistantZephyrhills, FLI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$1K

Peer benchmark

Total Medicare services vs. 6,755 Physician Assistant providers in FL — bottom quintile (cohort median 271).

PRESCRIBING · PART D · 2024

Total Rx claims

4,722

Beneficiaries

—

Total drug cost

$671K

Distinct drugs

105

Brand share

22.0%

Top prescribed drugs

Levothyroxine Sodium289 claims

Atorvastatin Calcium217 claims

Amlodipine Besylate191 claims

Rosuvastatin Calcium190 claims

Losartan Potassium173 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$707

Payment records

By payment type

Food and Beverage$707

REFERRAL NETWORK

Where Marissa Williams'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). 6 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Kacian Brown Family Practice · Maitland, FL	42	108
PASCO REGIONAL MEDICAL CENTER, LLC	35	98
FLORIDA HOSPITAL ZEPHYRHILLS INC	31	112
Binu Jacob Clinical Cardiac Electrophysiology · Zephyrhills, FL	20	95
Katie Griggs Physician Assistant · Lakeland, FL	17	36
Ahad Mahootchi Ophthalmology · Zephyrhills, FL	13	30

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