PROVIDER PROFILE · NPI 1013220961
Gretchen O'brienN.P.
CROSS-REFERENCE
Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 6 inbound referrers · 13 outbound destinations.
| Physician | Patients | Visits |
|---|---|---|
| BETH ISRAEL DEACONESS HOSPITAL-NEEDHAM, INC. | 96 | 473 |
| Perminder Dhillon Internal Medicine · Needham, MA | 19 | 54 |
| Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA | 19 | 51 |
| HEBREW REHABILITATION CENTER | 12 | 49 |
| Daniel Rutowicz Podiatry · Needham, MA | 12 | 27 |
| BETH ISRAEL DEACONESS HOSPITAL MILTON INC | 11 | 33 |
| Physician | Patients | Visits |
|---|---|---|
| BETH ISRAEL DEACONESS HOSPITAL-NEEDHAM, INC. | 164 | 926 |
| BETH ISRAEL DEACONESS MEDICAL CENTER, INC. | 80 | 300 |
| Peter Zimetbaum Cardiology · Boston, MA | 48 | 84 |
| Joseph Kannam Cardiology · Boston, MA | 40 | 145 |
| Anne Riley Cardiology · Wellesley, MA | 38 | 168 |
| Meghan York Internal Medicine · Wellesley, MA | 21 | 61 |
| BETH ISRAEL DEACONESS HOSPITAL MILTON INC | 20 | 101 |
| Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA | 15 | 37 |
| NEWTON-WELLESLEY HOSPITAL | 14 | 57 |
| RODMAN, DEAN | 13 | 33 |
| NPI 1740227446 | 13 | 30 |
| Ronald Eisenberg Diagnostic Radiology · Boston, MA | 11 | 22 |