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PROVIDER PROFILE · NPI 1902923410

David MerrillMD

Geriatric PsychiatryLos Angeles, CAI
CROSS-REFERENCE

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REFERRAL NETWORK

Where David Merrill'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
John Miller
Anesthesiology · Los Angeles, CA
34169
Stephen Chen
Geriatric Psychiatry · Los Angeles, CA
34740
Laurie Casaus
Psychiatry · Los Angeles, CA
32181
Mariya Svilik
Anesthesiology · Los Angeles, CA
29230
Peifeng Hu
Geriatric Medicine · Los Angeles, CA
20180
Chinh Mai
Anesthesiology · Los Angeles, CA
2085
Assurex Health, Inc.
Clinical Laboratory · Mason, OH
1737
REGENTS OF THE UNIV OF CALIFORNIA1761
Zaldy Tan
Geriatric Medicine · Los Angeles, CA
11114
Refers patients to
Outbound — where patients go next
No outbound pairs above the suppression threshold.
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.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
938
Unique beneficiaries
—
Total services
3,245
Distinct HCPCS
15
Medicare payment
$259K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 15 Geriatric Psychiatry providers in CA — top quintile (cohort median 534).
QUALITY · MIPS · 2024
Final MIPS score
88.3
Quality
76.0
Cost
56.2
Improvement activities
40.0
Promoting interop.
100.0
Payment adjustment
0.56%
Group
PRESCRIBING · PART D · 2024
Total Rx claims
1,603
Beneficiaries
—
Total drug cost
$64K
Distinct drugs
33
Brand share
20.6%
Top prescribed drugs
Escitalopram Oxalate150 claims
Venlafaxine Hcl124 claims
Quetiapine Fumarate108 claims
Donepezil Hcl95 claims
Mirtazapine74 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$358
Payment records
13
By payment type
Food and Beverage$358