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PROVIDER PROFILE · NPI 1720262397

Allison OstroffM.D.

PRACTICEGREENWICH MEDICAL GROUPSee all providers at this practice →
Geriatric MedicineGreenwich, CTI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
5,370
Beneficiaries
—
Total drug cost
$191K
Distinct drugs
102
Brand share
17.3%
Top prescribed drugs
Apixaban320 claims
Levothyroxine Sodium282 claims
Atorvastatin Calcium248 claims
Furosemide224 claims
Amlodipine Besylate208 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
380
Unique beneficiaries
—
Total services
684
Distinct HCPCS
7
Medicare payment
$59K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 61 Geriatric Medicine providers in CT — above median (cohort median 549).
REFERRAL NETWORK

Where Allison Ostroff'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). 35 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
STAMFORD HOSPITAL3152,107
Francis Neeson
Cardiology · Greenwich, CT
96504
David Evans
Diagnostic Radiology · Greenwich, CT
76229
Greenwich Emergency Medical Service, Inc.
Ambulance Service Provider · Riverside, CT
44141
Alexander Delvecchio
Clinical Cardiac Electrophysiology · Greenwich, CT
38172
Mary Kane-Brock
Endocrinology · Greenwich, CT
37127
Lisa Kurian
Internal Medicine · Old Greenwich, CT
33103
TOWN OF GREENWICH28128
Erez Salik
Interventional Radiology · Greenwich, CT
2876
Francis Walsh
Nephrology · Cos Cob, CT
27208
Ellen Golden
Podiatry · Greenwich, CT
2473
Christopher Song
Internal Medicine · Greenwich, CT
23109
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.