HOSPITAL · CCN 050496
JOHN MUIR MEDICAL CENTER - CONCORD
Physician affiliations & referral network
Affiliated physicians
329
External referring physicians
1,375
Top affiliated specialty
Internal Medicine
Shared beneficiaries (top referrers)
40,597
SPECIALTY MIX
Specialties among affiliated physicians
48
42
28
20
18
18
12
12
11
10
10
8
AFFILIATED PHYSICIANS
Physicians affiliated with JOHN MUIR MEDICAL CENTER - CONCORD (329 total)
From CMS Physician-Facility Affiliations. Showing the first 50 of 329.
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 |
|---|---|---|
| Jonathan Posin | Diagnostic Radiology | 4,974 |
| STANFORD HEALTH CARE TRI-VALLEY | — | 3,316 |
| Amy Lai | Diagnostic Radiology | 2,759 |
| David Howard | Diagnostic Radiology | 2,172 |
| CONTRA COSTA COUNTY | — | 2,097 |
| Saurabh Patel | Diagnostic Radiology | 1,863 |
| SUTTER EAST BAY HOSPITALS | — | 1,829 |
| David Woo | Diagnostic Radiology | 1,819 |
| SCHICK, ROBERT | — | 1,790 |
| Vincent Wong | Diagnostic Radiology | 1,750 |
| North Star Emergency Services, Inc. | Ambulance Service Provider | 1,690 |
| Susan Cha | Diagnostic Radiology | 1,491 |
| JOHN MUIR HEALTH | — | 1,284 |
| Ira Finch | Diagnostic Radiology | 1,255 |
| Jason Shey | Nephrology | 1,129 |
| David Goldberg | Diagnostic Radiology | 1,126 |
| Ayman Hosny | Cardiology | 1,036 |
| Community Mobile Diagnostics Llc | Portable X-Ray Supplier | 1,035 |
| Zita Shiue | Nephrology | 1,003 |
| DIGNITY HEALTH | — | 962 |
| Jorge Bernett | Infectious Disease | 905 |
| May Chiu | Nephrology | 849 |
| DAVIS, SALLY | — | 836 |
| Neetu Gakhar | Internal Medicine | 822 |
| Michael Vollmer | Infectious Disease | 805 |
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 | 335 |
| 291HEART FAILURE AND SHOCK WITH MCC | 258 |
| 274PERCUTANEOUS AND OTHER INTRACARDIAC PROCEDURES WITHOUT MCC | 121 |
| 177RESPIRATORY INFECTIONS AND INFLAMMATIONS WITH MCC | 116 |
| 872SEPTICEMIA OR SEVERE SEPSIS WITHOUT MV >96 HOURS WITHOUT MCC | 105 |
| 470MAJOR HIP AND KNEE JOINT REPLACEMENT OR REATTACHMENT OF LOWER EXTREMITY WITHOUT MCC | 104 |
CROSS-REFERENCE