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PROVIDER PROFILE · NPI 1952484149

Christopher GranthamM.D.

Internal MedicineBronx, NYI
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
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$974
Payment records
17
By payment type
Food and Beverage$974
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
136
Unique beneficiaries
—
Total services
220
Distinct HCPCS
3
Medicare payment
$36K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 7,864 Internal Medicine providers in NY — below median (cohort median 552).
REFERRAL NETWORK

Where Christopher Grantham'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). 31 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
New York City Health And Hospitals Corporation
Ambulance Service Provider · Brooklyn, NY
55135
TC AMBULANCE CORPORATION49123
David Green
Diagnostic Radiology · Summit, NJ
46207
Bozena Malyszko
Internal Medicine · Wallingford, CT
41121
John Della Badia
Diagnostic Radiology · Bronx, NY
40116
Robert Menkel
Critical Care (Intensivists) · Bronx, NY
40368
Shivanck Upadhyay
Internal Medicine · Paterson, NJ
38161
Abdurhman Ahmed
Nephrology · Bronx, NY
30108
Jeffrey Gunzenhauser
Diagnostic Radiology · Brooklyn, NY
2791
Christopher Decotiis
Pulmonary Disease · Summit, NJ
2371
Sulejman Celaj
Cardiology · Bronx, NY
2360
John Anderson
Diagnostic Radiology · Coeur D Alene, ID
2247
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.