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PROVIDER PROFILE · NPI 1235109653

Lisa MerrillM.D.

HospitalistWilliamsburg, VAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
751
Unique beneficiaries
—
Total services
907
Distinct HCPCS
5
Medicare payment
$81K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 619 Hospitalist providers in VA — above median (cohort median 670).
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 490052
Hospital
CCN 490066
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
48
Beneficiaries
—
Total drug cost
$275
Distinct drugs
3
Brand share
43.8%
Top prescribed drugs
Amoxicillin/Potassium Clav21 claims
Furosemide15 claims
Prednisone12 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$313
Payment records
3
By payment type
Food and Beverage$313
REFERRAL NETWORK

Where Lisa Merrill'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). 47 inbound referrers · 84 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
MONTILEONE, MICHAEL126489
Stephen Foxx
Diagnostic Radiology · Richmond, VA
106443
Ravi Shamaiengar
Diagnostic Radiology · Columbia, MD
103452
James City County Board Of Supervisors
Ambulance Service Provider · Williamsburg, VA
101425
James Primich
Diagnostic Radiology · Richmond, VA
99406
RIVERSIDE HOSPITAL INC72318
Robin Olsen
Hospitalist · Hampton, VA
71286
Ralph Dimattia
Hospitalist · Williamsburg, VA
64396
Troy Thompson
Hospitalist · Williamsburg, VA
60578
Chad Dunn
Emergency Medicine · Winchester, VA
57289
LINK, KAREN56234
FRANCIS, VERNON48276
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
SENTARA HOSPITALS3841,737
NPI 1750384954129493
Steven Pietruszynski
Diagnostic Radiology · Hampton, VA
102266
James Primich
Diagnostic Radiology · Richmond, VA
102280
Jeffrey Vandesand
Diagnostic Radiology · Newport News, VA
83200
Michael Smith
Diagnostic Radiology · Hampton, VA
82227
RIVERSIDE HOSPITAL INC77319
Roger Clevinger
Hospitalist · Lexington, VA
77714
Kathleen Vereb
Hospitalist · Williamsburg, VA
69511
MONTILEONE, MICHAEL64173
Ravi Shamaiengar
Diagnostic Radiology · Columbia, MD
61210
Ralph Dimattia
Hospitalist · Williamsburg, VA
60242
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.