PROVIDER PROFILE · NPI 1255365441
Kathryn GrumbachMD
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). 265 inbound referrers · 502 outbound destinations.
| Physician | Patients | Visits |
|---|---|---|
| Quest Diagnostics Incorporated Md Clinical Laboratory · Baltimore, MD | 418 | 872 |
| Director Of Finance-County Of Fairfax Va Ambulance Service Provider · Fairfax, VA | 267 | 409 |
| MEDICAL TRANSPORTATION SERVICES, LLC | 172 | 275 |
| Ingrid Schneider Diagnostic Radiology · Fairfax, VA | 153 | 331 |
| John Ruff Diagnostic Radiology · Fairfax, VA | 143 | 262 |
| Wei Shen Griggs Diagnostic Radiology · Fairfax, VA | 128 | 255 |
| SEARS-ROGAN, PAMELA | 102 | 162 |
| OLIVER, EDWARD | 99 | 171 |
| O'CONNELL, ROBERT | 98 | 173 |
| Kurosh Majd Diagnostic Radiology · Torrance, CA | 97 | 164 |
| Marianne Shih Diagnostic Radiology · Fairfax, VA | 95 | 170 |
| INOVA HEALTH CARE SERVICES | 91 | 142 |
| Physician | Patients | Visits |
|---|---|---|
| INOVA HEALTH CARE SERVICES | 944 | 1,826 |
| MEDICAL TRANSPORTATION SERVICES, LLC | 331 | 640 |
| Director Of Finance-County Of Fairfax Va Ambulance Service Provider · Fairfax, VA | 320 | 474 |
| Quest Diagnostics Incorporated Md Clinical Laboratory · Baltimore, MD | 276 | 547 |
| Robert Cunnion Cardiology · Fairfax, VA | 270 | 557 |
| Laboratory Corporation Of America Holdings Clinical Laboratory · Burlington, NC | 229 | 412 |
| Wei Shen Griggs Diagnostic Radiology · Fairfax, VA | 202 | 393 |
| INOVA VNA HOME HEALTH | 176 | 230 |
| Brigid Castro Diagnostic Radiology · Fairfax, VA | 173 | 329 |
| Ingrid Schneider Diagnostic Radiology · Fairfax, VA | 172 | 324 |
| Jonathan Alfert Diagnostic Radiology · Fairfax, VA | 165 | 301 |
| NPI 1790703791 | 164 | 412 |