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PROVIDER PROFILE · NPI 1437128592

John Marra

Internal MedicineBaltimore, MDI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PricingContactPrivacyTerms
MEDICARE UTILIZATION · PART B · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
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 John Marra'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). 160 inbound referrers · 313 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Jeffrey Hirsch
Diagnostic Radiology · Baltimore, MD
304526
SKRENTA, ALLAN197338
Laboratory Corporation Of America Holdings
Clinical Laboratory · Raritan, NJ
194385
Irfan Shaukat
Hematology-Oncology · Baltimore, MD
187401
Kevin Scruggs
Emergency Medicine · Baltimore, MD
182297
Justin Walters
Emergency Medicine · Minot, ND
180327
Manjula Ananthram
Cardiology · Norfolk, VA
179381
Michael Flanders
Emergency Medicine · Pembroke Pines, FL
166286
Reuben Mezrich
Diagnostic Radiology · Baltimore, MD
163276
Shahzad Hussain
Internal Medicine · Baltimore, MD
152318
Michelle Zikusoka
Internal Medicine · Baltimore, MD
149328
Margie Banzuelo-Rio
Internal Medicine · Baltimore, MD
146252
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
THE GOOD SAMARITAN HOSPITAL OF MARYLAND, INC1,6574,761
WEKSBERG, ALLAN6541,440
MCAVOY, MARCIA380708
Mayor And City Council Of Baltimore
Ambulance Service Provider · Baltimore, MD
364614
Lifestar Response Of Maryland, Inc
Ambulance Service Provider · Annapolis Junction, MD
351620
FONDA, JELLES345683
Jerald Insel
Cardiology · Nottingham, MD
2841,017
ENNIS, LEN223446
MEDSTAR HEALTH VISITING NURSE ASSOCIATION, INC.211343
Jeffrey Hirsch
Diagnostic Radiology · Baltimore, MD
200411
PILLING, JEFFREY190426
SEXTON, CARLTON187293
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.