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Huan Guu, M.D.

NPI 1952352668ActiveIndividual· Internal Medicine· Mission Viejo, CA

Internal Medicine (M.D.) in Mission Viejo, California, trained at Medical College of Pennsylvania (class of 1995). In 2024 Medicare paid $485,350 for 758 patients, and Part D covered 11,237 of their prescriptions, 84% of them generic.

Overview

NPI1952352668
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 15, 2006
Last updated in NPPESJul 8, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XA62481CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients758
Services billed5,240 across 9 procedure codes
Paid by Medicare$485,350

Part D prescriptions in 2024

Prescriptions (claims)11,237 · 11,342 30-day fills
Patients503
Total drug cost$672,926
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMedical College of Pennsylvania
Graduation year1995
Medicare specialtyInternal Medicine

Medical group

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other Internal Medicine providers in Mission Viejo

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