PROVIDER PROFILE · NPI 1174705065

Alissa MarkMD

PRACTICEWESTCHESTER URGENT CARE PLLCSee all providers at this practice →

GastroenterologyWhite Plains, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

360

Unique beneficiaries

—

Total services

383

Distinct HCPCS

Medicare payment

$79K

Peer benchmark

Total Medicare services vs. 1,360 Gastroenterology providers in NY — below median (cohort median 521).

PRESCRIBING · PART D · 2024

Total Rx claims

724

Beneficiaries

—

Total drug cost

$94K

Distinct drugs

Brand share

13.5%

Top prescribed drugs

Famotidine327 claims

Pantoprazole Sodium121 claims

Omeprazole98 claims

Sodium, Potassium,mag Sulfates43 claims

Linaclotide33 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

Payment records

By payment type

Food and Beverage$8

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 070018

Hospital

CCN 330304

Hospital

REFERRAL NETWORK

Where Alissa Mark'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). 1 inbound referrers · 5 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
WHITE PLAINS HOSPITAL MEDICAL CENTER	33	79

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
WHITE PLAINS HOSPITAL MEDICAL CENTER	43	126
Quest Diagnostics Incorporated Clinical Laboratory · Clifton, NJ	23	102
GREENWICH HOSPITAL	15	46
NASUTI, JOSEPH	15	27
NPI 1396877882	14	25

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