NPIMap

Individual provider Active NPI

Derek Nguyen, MD

  • Internal Medicine Physician
  • Riverside, CA
National Provider Identifier
1528054095
Registry record updated Aug 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A87744 Issued in CA
Practice address
3767 Elizabeth St
Riverside, CA 92506-2508
Phone
(951) 683-6830
Fax
(951) 228-9458
NPI assigned
Sep 21, 2005
Last updated
Aug 20, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 20, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Dermatology Physician 207N00000X A87744 CA
Internal Medicine Physician 207R00000X A87744 CA Primary

Addresses

Primary practice location

3767 Elizabeth St
Riverside, CA 92506-2508

Mailing address

3767 Elizabeth St
Riverside, CA 92506-2508
Phone (951) 683-6830

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050124000257 CA Practitioner - Internal Medicine 1759331291 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Yale University School of Medicine, 2004
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Derek Nguyen MD IncGroup PAC ID 2567648769, 4 clinicians

Practice addresses (Care Compare)

3767 Elizabeth St
Riverside, CA 92506-2508
Phone (951) 683-6830

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
87.45 of 100Reported as apm
Quality
74.21
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Melanoma (skin cancer) excision1-10
Removal of skin lesions109
Skin biopsy17

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A87744CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Riverside Healthcare System, L.P. Past Accepting new patients
Bridge Agency Inc PastSince May 1, 2024 Accepting new patients
Inland Hospitalists Med GP Internal Medicine Past Accepting new patients

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: dereknguyen@dnguy.allscriptsdirect.net

Ownership & related parties

All facility ownership & control disclosures 3

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Riverside Village Healthcare CenterRiverside, CA, CCN 555404 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Jul 1, 2021
Jul 1, 2021
Community Care on PalmRiverside, CA, CCN 555711 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Jan 1, 2025
Jan 1, 2025
Blue Horizon HospicePalm Springs, CA, CCN B51794 Hospice Contracted Managing Employee (100%) May 1, 2024

Owned or controlled facilities with NPI records 3

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 6

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 16

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 16

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1127260800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787184000000",
    "number": "1528054095",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3767 ELIZABETH ST",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925062508",
            "telephone_number": "951-683-6830",
            "fax_number": "951-228-9458"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3767 ELIZABETH ST",
            "city": "RIVERSIDE",
            "state": "CA",
            "postal_code": "925062508",
            "telephone_number": "951-683-6830",
            "fax_number": "951-228-9458"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "DEREK",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-09-21",
        "last_updated": "2026-08-20",
        "certification_date": "2026-08-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "CA",
            "license": "A87744",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A87744",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Riverside, CA

Sources for this page

Verify at the official NPI Registry.