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PROVIDER PROFILE · NPI 1093710345

Mark GellerM.D.

Internal MedicineTarzana, CAI
CROSS-REFERENCE

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ProviderScore
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 (1)

CCN 057627
Home health agency
PRESCRIBING · PART D · 2024
Total Rx claims
4,761
Beneficiaries
—
Total drug cost
$666K
Distinct drugs
79
Brand share
22.1%
Top prescribed drugs
Atorvastatin Calcium500 claims
Levothyroxine Sodium356 claims
Amlodipine Besylate294 claims
Losartan Potassium228 claims
Metformin Hcl203 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,033
Unique beneficiaries
—
Total services
1,818
Distinct HCPCS
14
Medicare payment
$98K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
REFERRAL NETWORK

Where Mark Geller'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). 32 inbound referrers · 55 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Unilab Corporation
Clinical Laboratory · West Hills, CA
119405
Prashant Chawla
Diagnostic Radiology · Chicago, IL
56155
Eli Bendavid
Diagnostic Radiology · Tarzana, CA
53235
Jeffrey Salberg
Internal Medicine · Tarzana, CA
48216
City Of Los Angeles
Ambulance Service Provider · Los Angeles, CA
45180
Jack Chen
Diagnostic Radiology · Tarzana, CA
43164
David Rubenstein
Diagnostic Radiology · Tarzana, CA
41193
Farhad Houriani
Diagnostic Radiology · North Hollywood, CA
40369
Ardeshir Soroushyari
Endocrinology · Tarzana, CA
36182
Marc Ehrich
Interventional Cardiology · Tarzana, CA
34180
WEST HILLS HOSPITAL3250
Gary Tanouye
Internal Medicine · Tarzana, CA
29138
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
Unilab Corporation
Clinical Laboratory · West Hills, CA
160586
TARZANA MEDICAL CENTER LLC128534
Prashant Chawla
Diagnostic Radiology · Chicago, IL
57200
Jeffrey Salberg
Internal Medicine · Tarzana, CA
50174
Eli Bendavid
Diagnostic Radiology · Tarzana, CA
49214
Marc Ehrich
Interventional Cardiology · Tarzana, CA
49235
Benjamin Simon
Interventional Cardiology · Tarzana, CA
48292
Jack Chen
Diagnostic Radiology · Tarzana, CA
48200
Farhad Houriani
Diagnostic Radiology · North Hollywood, CA
47394
David Rubenstein
Diagnostic Radiology · Tarzana, CA
44203
GRITZ, RICHARD38154
Gary Tanouye
Internal Medicine · Tarzana, CA
34181
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.