caretrace.iopowered by▸healthparse
SearchCohort Builder
Tools▾
KOL FinderTerritoriesDrug Compare
AI Query
Browse▾
By stateBy specialty
Pricing
SearchCohort BuilderToolsKOL FinderTerritoriesDrug CompareAI QueryBrowseBy stateBy specialtyPricing
PROVIDER PROFILE · NPI 1700019528

Hamilton ChenMD

Physical Medicine and RehabilitationRiverside, CAI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
QUALITY · MIPS · 2024
Final MIPS score
75.0
Quality
0.0
Cost
0.0
Improvement activities
0.0
Promoting interop.
0.0
Payment adjustment
0.00%
Group
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
862
Unique beneficiaries
—
Total services
3,117
Distinct HCPCS
13
Medicare payment
$132K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 710 Physical Medicine and Rehabilitation providers in CA — above median (cohort median 1,331).
PRESCRIBING · PART D · 2024
Total Rx claims
3,093
Beneficiaries
—
Total drug cost
$89K
Distinct drugs
25
Brand share
29.8%
Top prescribed drugs
Hydrocodone/Acetaminophen562 claims
Gabapentin437 claims
Cyclobenzaprine Hcl224 claims
Tramadol Hcl211 claims
Celecoxib176 claims
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$1K
Payment records
38
By payment type
Food and Beverage$1K
REFERRAL NETWORK

Where Hamilton Chen'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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
RIVERSIDE HEALTHCARE SYSTEM, L.P.43141
Unilab Corporation
Clinical Laboratory · West Hills, CA
2070
Ardavan Afshar
Diagnostic Radiology · Riverside, CA
1954
Michael Reid
Certified Registered Nurse Anesthetist (CRNA) · Colton, CA
1952
Darren Freeman
Physical Medicine and Rehabilitation · Encino, CA
1728
Phamatech Incorporated
Clinical Laboratory · San Diego, CA
1634
Shareef Riad
Diagnostic Radiology · San Diego, CA
1435
Andro Sharobiem
Internal Medicine · Riverside, CA
1382
Thomas Haider
Orthopedic Surgery · Riverside, CA
11105
Dennis Cramer
Neurosurgery · Riverside, CA
1130
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.