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PROVIDER PROFILE · NPI 1366463507

Hartwell LinM.D.

PRACTICEJOHN MUIR HEALTHSee all providers at this practice →
Emergency MedicineConcord, CAI
CROSS-REFERENCE

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INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
Final MIPS score
96.7
Quality
90.0
Cost
78.4
Improvement activities
40.0
Promoting interop.
0.0
Payment adjustment
0.91%
Group
PRESCRIBING · PART D · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
163
Unique beneficiaries
—
Total services
163
Distinct HCPCS
4
Medicare payment
$20K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 5,287 Emergency Medicine providers in CA — below median (cohort median 355).
REFERRAL NETWORK

Where Hartwell Lin'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). 18 inbound referrers · 73 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
CONTRA COSTA COUNTY53164
Angelo Crudale
Diagnostic Radiology · Walnut Creek, CA
4479
Joan Reynolds
Diagnostic Radiology · Walnut Creek, CA
2538
Amy Lai
Diagnostic Radiology · New York, NY
2439
Ronald Chan
Diagnostic Radiology · Walnut Creek, CA
2331
Ayman Hosny
Cardiology · Concord, CA
2346
Mitchell Applegate
Family Practice · Walnut Creek, CA
2154
Sunil Gandhi
Diagnostic Radiology · Walnut Creek, CA
2027
Jennifer Grayzar
Emergency Medicine · San Rafael, CA
1849
Jonathan Posin
Diagnostic Radiology · Walnut Creek, CA
1731
Susan Eisenberg
Clinical Cardiac Electrophysiology · Saint Helena, CA
1727
Daniel Kim
Diagnostic Radiology · Walnut Creek, CA
1730
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
JOHN MUIR HEALTH353818
American Medical Response West
Ambulance Service Provider · Concord, CA
126250
William Hoddick
Diagnostic Radiology · Walnut Creek, CA
87163
NPI 182106557475133
Jonathan Posin
Diagnostic Radiology · Walnut Creek, CA
73119
Laboratory Corporation Of America
Clinical Laboratory · San Diego, CA
72169
CONTRA COSTA COUNTY54212
Srikrishin Rohra
Cardiology · Pleasanton, CA
4668
Angelo Crudale
Diagnostic Radiology · Walnut Creek, CA
4153
Vivian Wing
Diagnostic Radiology · Walnut Creek, CA
3669
Saurabh Patel
Diagnostic Radiology · Walnut Creek, CA
3346
NPI 17008534543256
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.