REFERRAL NETWORK
Where Jennifer Callahan'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). 2 inbound referrers · 30 outbound destinations.
Receives referrals from
Inbound — who sends patients here
Refers patients to
Outbound — where patients go next
| Physician | Patients | Visits |
|---|
| LAHEY CLINIC HOSPITAL, INC. | 239 | 1,078 |
| Kenneth Gabriel Anesthesiology · Burlington, MA | 31 | 42 |
| Jeffrey Clayman Cardiology · Peabody, MA | 27 | 51 |
| Tina Scarlata Certified Registered Nurse Anesthetist (CRNA) · Burlington, MA | 22 | 27 |
| Katherine Morse Certified Registered Nurse Anesthetist (CRNA) · Burlington, MA | 21 | 24 |
| MACDONALD, SUSAN | 21 | 112 |
| Cornelius O'connor Anesthesiology · Burlington, MA | 21 | 27 |
| Richard Lehrer Anesthesiology · Burlington, MA | 20 | 24 |
| Lauren Nieuweboer Certified Registered Nurse Anesthetist (CRNA) · Burlington, MA | 20 | 26 |
| Stephen Fleet Cardiology · Greenfield, MA | 19 | 31 |
| Jana Montgomery Nuclear Medicine · Burlington, MA | 19 | 20 |
| Mario Grasso Anesthesiology · Burlington, MA | 17 | 22 |
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.