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PROVIDER PROFILE · NPI 1104073709

Gregory LarsenD.O.

PRACTICELEMA LLCSee all providers at this practice →
Emergency MedicineColton, CAI
CROSS-REFERENCE

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OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (4)

CCN 050291
Hospital
CCN 050360
Hospital
CCN 051310
Hospital
CCN 051325
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
289
Beneficiaries
—
Total drug cost
$1K
Distinct drugs
13
Brand share
39.1%
Top prescribed drugs
Hydrocodone/Acetaminophen48 claims
Prednisone44 claims
Cephalexin44 claims
Oxycodone Hcl/Acetaminophen25 claims
Azithromycin20 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
818
Unique beneficiaries
—
Total services
906
Distinct HCPCS
6
Medicare payment
$80K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 5,287 Emergency Medicine providers in CA — top quintile (cohort median 355).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Gregory Larsen's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 8 inbound referrers · 33 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
FRENCH, WILLIAM136325
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC96316
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC3246
FORTUNA FAMILY MEDICAL GROUP INC1755
Gary Marcus
Cardiology · San Pablo, CA
1639
CONTRA COSTA COUNTY1656
Dawn Magdalin-Betts
Family Practice · Santa Rosa, CA
1144
KELLEY, NEIL1152
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC253808
WEST CONTRA COSTA HEALTHCARE DISTRICT95243
NPI 154826851993264
Francis Cutruzzola
Diagnostic Radiology · Fortuna, CA
83217
OPEN DOOR COMMUNITY HEALTH CENTERS40106
ST. JOSEPH HEALTH NORTHERN CALIFORNIA, LLC39132
Hayden Evans
Diagnostic Radiology · Oakland, CA
3666
Ruben Brinckhaus
Family Practice · Fortuna, CA
35113
Laboratory Corporation Of America
Clinical Laboratory · San Diego, CA
3186
Gary Marcus
Cardiology · San Pablo, CA
2645
PHILIP L. OLKIN, M.D. AND C. RAY JONES, M.D.2693
FORTUNA FAMILY MEDICAL GROUP INC2574
Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.