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PROVIDER PROFILE · NPI 1821288960

Gretchen GignacMD

Hematology-OncologyBoston, MAI
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.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
661
Beneficiaries
—
Total drug cost
$2.4M
Distinct drugs
10
Brand share
67.0%
Top prescribed drugs
Relugolix294 claims
Darolutamide94 claims
Prednisone60 claims
Abiraterone Acetate57 claims
Bicalutamide53 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
207
Unique beneficiaries
—
Total services
360
Distinct HCPCS
6
Medicare payment
$30K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 360 Hematology-Oncology providers in MA — below median (cohort median 624).
REFERRAL NETWORK

Where Gretchen Gignac'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). 16 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
BOSTON MEDICAL CENTER CORPORATION1963,709
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2061
Mark Katz
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19122
Boston Public Health Commission
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1765
Nagaraj-Setty Holalkere
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1654
Milos Janicek
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1654
Jimmy Wang
Diagnostic Radiology · Boston, MA
1651
Christina Lebedis
Diagnostic Radiology · Boston, MA
1543
Eascare Llc
Ambulance Service Provider · Weymouth, MA
1454
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.