HOSPITAL · CCN 220071
MASSACHUSETTS GENERAL HOSPITAL
Physician affiliations & referral network
BOSTON, MAFY 2025
Affiliated physicians
1,896
External referring physicians
4,465
Top affiliated specialty
Internal Medicine
Shared beneficiaries (top referrers)
163,350
SPECIALTY MIX
Specialties among affiliated physicians
309
215
129
117
83
60
59
59
56
54
53
39
AFFILIATED PHYSICIANS
Physicians affiliated with MASSACHUSETTS GENERAL HOSPITAL (1,896 total)
From CMS Physician-Facility Affiliations. Showing the first 50 of 1,896.
REFERRAL NETWORK
Who refers patients here
External physicians who share patients into this hospital's affiliated providers, ranked by shared Medicare beneficiaries.
| Referring physician | Specialty | Shared beneficiaries |
|---|---|---|
| THE GENERAL HOSPITAL CORPORATION | — | 88,812 |
| Quest Diagnostics Massachusetts Llc | Clinical Laboratory | 9,138 |
| SOUTH SHORE HOSPITAL INC. | — | 8,192 |
| NORTHEAST HOSPITAL CORPORATION | — | 5,723 |
| FALLON SERVICE, INC. | — | 5,072 |
| MASS GENERAL BRIGHAM HOME CARE, INC. | — | 4,238 |
| PATTI, JOHN | — | 3,909 |
| Boston Public Health Commission | Ambulance Service Provider | 3,847 |
| GILARDI, PARUL | — | 2,996 |
| CAMBRIDGE PUBLIC HEALTH COMMISSION | — | 2,804 |
| CAPE COD HOSPITAL INC | — | 2,490 |
| FALLON EMERGENCY MEDICAL SERVICES, INC. | — | 2,397 |
| WENTWORTH DOUGLASS HOSPITAL | — | 2,142 |
| FRISBIE MEMORIAL HOSPITAL | — | 2,121 |
| Thomas Ptak | Diagnostic Radiology | 1,999 |
| HUGHES, ROBERT | — | 1,989 |
| Florian Fintelmann | Diagnostic Radiology | 1,889 |
| Laura Avery | Diagnostic Radiology | 1,870 |
| LANDY, MERRIC | — | 1,826 |
| BOSTON MEDICAL CENTER CORPORATION | — | 1,725 |
| Armstrong Ambulance Service | Ambulance Service Provider | 1,672 |
| David Kahn | Cardiology | 1,662 |
| Harbor Medical Associates, Inc. | Clinical Laboratory | 1,651 |
| MARTHA'S VINEYARD HOSPITAL, INC. | — | 1,644 |
| Anand Prabhakar | Diagnostic Radiology | 1,542 |
Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). A directional edge is a proxy for referral, not a documented referral; pairs below 11 shared beneficiaries are suppressed.
CASE MIX
Top procedures by volume
Highest-volume MS-DRGs from CMS inpatient claims (latest reporting year per code).
| MS-DRG | Discharges |
|---|---|
| 871SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITH MCC | 640 |
| 291HEART FAILURE AND SHOCK WITH MCC | 466 |
| 177RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH MCC | 329 |
| 219CARDIAC VALVE AND OTHER MAJOR CARDIOTHORACIC PROCEDURES WITHOUT CARDIAC CATHETERIZATION | 263 |
| 274PERCUTANEOUS AND OTHER INTRACARDIAC PROCEDURES WITHOUT MCC | 256 |
| 286CIRCULATORY DISORDERS EXCEPT AMI, WITH CARDIAC CATHETERIZATION WITH MCC | 202 |
CROSS-REFERENCE