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PROVIDER PROFILE · NPI 1184880114

Douglas NguyenMD

GastroenterologyMission Viejo, CAI
CROSS-REFERENCE

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FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050567
Hospital
REFERRAL NETWORK

Where Douglas Nguyen'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). 13 inbound referrers · 29 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Byron J Allen
Internal Medicine · Orange, CA
68259
Unilab Corporation
Clinical Laboratory · West Hills, CA
34213
NPI 10938956662674
Pranav Patel
Cardiology · Orange, CA
2594
Teferi Mitiku
Internal Medicine · Orange, CA
21101
John Lee
Gastroenterology · Orange, CA
1862
Hiroshi Yoshioka
Diagnostic Radiology · Boston, MA
1841
Marisa Tseng
Diagnostic Radiology · Duarte, CA
1642
Kevin Harley
Nephrology · Orange, CA
1365
WILLIAMS JR, JAMES H1392
Laxmi Suthar
Internal Medicine · Covina, CA
1382
Joseph Burns
Diagnostic Radiology · Santa Barbara, CA
1126
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
UNIVERSITY OF CALIFORNIA IRVINE1951,846
Byron J Allen
Internal Medicine · Orange, CA
39164
CYRLAK, DVORA36131
Unilab Corporation
Clinical Laboratory · West Hills, CA
29165
Roozbeh Houshyar
Diagnostic Radiology · Orange, CA
2654
PAULL, BARRY2687
WU, MARK L2667
Chandana Lall
Diagnostic Radiology · Indianapolis, IN
2561
Teferi Mitiku
Internal Medicine · Orange, CA
23102
NPI 10938956662358
Thomas Lee
Pathology · Newport Beach, CA
2260
Jin Kim
Cardiology · Orange, CA
22105
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
651
Unique beneficiaries
—
Total services
866
Distinct HCPCS
10
Medicare payment
$104K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,398 Gastroenterology providers in CA — above median (cohort median 750).
PRESCRIBING · PART D · 2024
Total Rx claims
1,376
Beneficiaries
—
Total drug cost
$1.2M
Distinct drugs
31
Brand share
33.4%
Top prescribed drugs
Pantoprazole Sodium295 claims
Sodium, Potassium,mag Sulfates120 claims
Lactulose114 claims
Omeprazole89 claims
Colestipol Hcl73 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$486K
Payment records
654
By payment type
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$382K
Travel and Lodging$62K
Consulting Fee$27K
Food and Beverage$15K
Education$35