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PROVIDER PROFILE · NPI 1215984513

John ChowM.D.

Internal MedicineSan Mateo, CAI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (8)

CCN 058123
Home health agency
CCN 059016
Home health agency
CCN 059546
Home health agency
CCN 059551
Home health agency
CCN 059779
Home health agency
CCN 050007
Hospital
CCN 050108
Hospital
CCN 050441
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
11,260
Beneficiaries
—
Total drug cost
$526K
Distinct drugs
134
Brand share
12.9%
Top prescribed drugs
Atorvastatin Calcium1,121 claims
Amlodipine Besylate978 claims
Losartan Potassium682 claims
Levothyroxine Sodium550 claims
Simvastatin324 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
1,990
Unique beneficiaries
—
Total services
2,803
Distinct HCPCS
17
Medicare payment
$284K
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
Total received
$42
Payment records
2
By payment type
Education$23
Food and Beverage$19
REFERRAL NETWORK

Where John Chow'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 · 44 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Harriet Borofsky
Diagnostic Radiology · San Mateo, CA
44127
Clay Napper
Diagnostic Radiology · San Mateo, CA
2882
Robert Filer
Ophthalmology · San Mateo, CA
2677
Jon Keller
Pathology · Palo Alto, CA
24133
Jeffrey Guttas
Cardiology · San Mateo, CA
2380
Avanti Ambekar
Diagnostic Radiology · San Mateo, CA
2350
NPI 12654935062289
POON, TAK21110
WEBB, PETER1775
Alireza Ghamgosar
Podiatry · San Mateo, CA
1768
Michael Macdonald
Ophthalmology · San Mateo, CA
1443
Dirk Diefendorf
Orthopedic Surgery · San Mateo, CA
1231
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
MILLS-PENINSULA HEALTH SERVICES4763,044
MARCUS, DAVID37110
Kathleen Mckenna
Diagnostic Radiology · San Mateo, CA
3395
Harriet Borofsky
Diagnostic Radiology · San Mateo, CA
33103
Dorra Sellami
Diagnostic Radiology · Burlingame, CA
31104
Robert Filer
Ophthalmology · San Mateo, CA
3192
Lenora Fung
Diagnostic Radiology · Burlingame, CA
3198
Kelly Broderick
Diagnostic Radiology · San Mateo, CA
2968
NPI 126549350625112
Jeffrey Guttas
Cardiology · San Mateo, CA
2493
Diana Baker
Diagnostic Radiology · San Francisco, CA
2475
Arthur Li
Diagnostic Radiology · Burlingame, CA
2372
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.