HOSPITAL · CCN 070016
ST. MARYS HOSPITAL
Physician affiliations & referral network
WATERBURY, CTFY 2025
Affiliated physicians
147
External referring physicians
605
Top affiliated specialty
Nurse Practitioner
Shared beneficiaries (top referrers)
39,006
SPECIALTY MIX
Specialties among affiliated physicians
26
20
11
9
8
8
7
6
6
5
5
4
AFFILIATED PHYSICIANS
Physicians affiliated with ST. MARYS HOSPITAL (147 total)
From CMS Physician-Facility Affiliations. Showing the first 50 of 147.
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 |
|---|---|---|
| WATERBURY HOSPITAL | — | 11,620 |
| Quest Diagnostics Llc | Clinical Laboratory | 5,481 |
| American Medical Response Of Connecticut Incorporated | Ambulance Service Provider | 4,333 |
| CARTER, ANTHONY | — | 1,538 |
| Mark Ruggiero | Cardiology | 1,513 |
| Stephen Widman | Cardiology | 1,250 |
| HYSON, ERIC | — | 1,203 |
| BUSHEY, MATTHEW | — | 1,070 |
| HARTFORD HEALTHCARE LABORATORIES | — | 1,050 |
| GUMBARDO, ROBERT | — | 824 |
| Thomas Pavlovic | Emergency Medicine | 823 |
| George Antonopoulos | Cardiology | 802 |
| Peter Chien | Cardiology | 782 |
| THE GRIFFIN HOSPITAL | — | 707 |
| Robert Matusz | Podiatry | 665 |
| HARTFORD HEALTHCARE AT HOME, INC | — | 649 |
| David Goldwag | Emergency Medicine | 635 |
| REIS, DAVID | — | 576 |
| SAINT FRANCIS HOSPITAL AND MEDICAL CENTER | — | 556 |
| NPI 1336165000 | — | 510 |
| SHERTER, CARL | — | 501 |
| SHETTY, MAHADEVAN | — | 489 |
| Elizabeth Mirabile Levens | Pulmonary Disease | 481 |
| THE HOSPITAL OF CENTRAL CONNECTICUT AT NEW BRITAIN GENERAL AND BRADLEY | — | 478 |
| ANDERSON, THOMAS | — | 470 |
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 | 211 |
| 291HEART FAILURE AND SHOCK WITH MCC | 81 |
| 872SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITHOUT MCC | 53 |
| 177RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH MCC | 51 |
| 280ACUTE MYOCARDIAL INFARCTION, DISCHARGED ALIVE WITH MCC | 46 |
| 193SIMPLE PNEUMONIA AND PLEURISY WITH MCC | 44 |
CROSS-REFERENCE