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PROVIDER PROFILE · NPI 1033189634

John ShieldMD

PRACTICESONORA COMMUNITY HOSPITALSee all providers at this practice →
Internal MedicineSonora, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (6)

CCN 059401
Home health agency
CCN 557561
Home health agency
CCN 559552
Home health agency
CCN 050335
Hospital
CCN 050441
Hospital
CCN 150023
Hospital
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
QUALITY · MIPS · 2024
Final MIPS score
84.8
Quality
81.7
Cost
67.3
Improvement activities
40.0
Promoting interop.
97.0
Payment adjustment
0.41%
Group
PRESCRIBING · PART D · 2024
Total Rx claims
8,815
Beneficiaries
—
Total drug cost
$870K
Distinct drugs
103
Brand share
20.0%
Top prescribed drugs
Amlodipine Besylate583 claims
Losartan Potassium456 claims
Valsartan455 claims
Atorvastatin Calcium436 claims
Levothyroxine Sodium355 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
2,555
Unique beneficiaries
—
Total services
4,061
Distinct HCPCS
11
Medicare payment
$120K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 10,499 Internal Medicine providers in CA — top quintile (cohort median 531).
REFERRAL NETWORK

Where John Shield'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). 36 inbound referrers · 79 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Jason Hwang
Diagnostic Radiology · Oakland, CA
112464
SONORA COMMUNITY HOSPITAL94369
Eric Hemminger
Cardiology · Englewood, CO
74421
Perry Haugen
Ophthalmology · Sonora, CA
61350
Joanne Rios
Certified Clinical Nurse Specialist · Sonora, CA
53532
Shalom Margolis
Specialist · Sonora, CA
47229
James Comazzi
Specialist · Sonora, CA
47318
County Of Tuolumne
Ambulance Service Provider · Sonora, CA
38197
Daniel Dubose
Otolaryngology · Sonora, CA
38285
David Allen
Internal Medicine · Sonora, CA
32102
NPI 131697615229185
Artin Mahmoudi
Pulmonary Disease · Ukiah, CA
20237
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
SONORA COMMUNITY HOSPITAL6386,346
SONORA COMMUNITY HOSPITAL5634,933
Jason Hwang
Diagnostic Radiology · Oakland, CA
142546
Michael Maiman
Diagnostic Radiology · Oakland, CA
130440
Gregory Schaner
Diagnostic Radiology · Oakland, CA
126505
SONORA COMMUNITY HOSPITAL97342
Eric Hemminger
Cardiology · Englewood, CO
93550
Perry Haugen
Ophthalmology · Sonora, CA
66360
Rajiv Maraj
Cardiology · Merced, CA
64376
James Comazzi
Specialist · Sonora, CA
61313
George Chu
Diagnostic Radiology · Walnut Creek, CA
56237
Joanne Rios
Certified Clinical Nurse Specialist · Sonora, CA
54594
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.