What is Allison Ostroff's specialty?

Allison Ostroff (NPI 1720262397) is a Medicare-billing provider whose primary specialty is Geriatric Medicine in Greenwich, CT.

Where does Allison Ostroff practice?

Allison Ostroff practices in Greenwich, CT, based on the location reported in the CMS Medicare provider datasets for NPI 1720262397.

How much does Medicare pay Allison Ostroff?

Allison Ostroff (NPI 1720262397) received approximately $65K in total Medicare Part B payments, serving 165 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1720262397

Allison OstroffM.D.

PRACTICEGREENWICH MEDICAL GROUPSee all providers at this practice →

Geriatric MedicineGreenwich, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

380

Unique beneficiaries

—

Total services

684

Distinct HCPCS

Medicare payment

$59K

Peer benchmark

Total Medicare services vs. 61 Geriatric Medicine providers in CT — above median (cohort median 549).

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

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

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

Physician	Patients	Visits
STAMFORD HOSPITAL	315	2,107
Francis Neeson Cardiology · Greenwich, CT	96	504
David Evans Diagnostic Radiology · Greenwich, CT	76	229
Greenwich Emergency Medical Service, Inc. Ambulance Service Provider · Riverside, CT	44	141
Alexander Delvecchio Clinical Cardiac Electrophysiology · Greenwich, CT	38	172
Mary Kane-Brock Endocrinology · Greenwich, CT	37	127
Lisa Kurian Internal Medicine · Old Greenwich, CT	33	103
TOWN OF GREENWICH	28	128
Erez Salik Interventional Radiology · Greenwich, CT	28	76
Francis Walsh Nephrology · Cos Cob, CT	27	208
Ellen Golden Podiatry · Greenwich, CT	24	73
Christopher Song Internal Medicine · Greenwich, CT	23	109

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events