NPIMap

Individual provider Active NPI

Oscar L. Chien, M.D.

  • Geriatric Medicine (Internal Medicine) Physician
  • San Gabriel, CA
National Provider Identifier
1679675904
Registry record updated Apr 2, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X
License
A54999 Issued in CA
Practice address
1448 S. San Gabriel BL.
San Gabriel, CA 91776
Phone
(626) 569-2888
Fax
(626) 569-9929
NPI assigned
Sep 5, 2006
Last updated
Apr 2, 2020By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 2, 2020

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Geriatric Medicine (Internal Medicine) Physician 207RG0300X A54999 CA Primary

Addresses

Primary practice location

1448 S. San Gabriel BL.
San Gabriel, CA 91776

Mailing address

1448 S. San Gabriel BL.
San Gabriel, CA 91776
Phone (626) 569-2888

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
I20100902000070 CA Practitioner - Internal MedicinePractitioner - Geriatric Medicine 2860516564 Practice locations: San Gabriel, CA

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Geriatric Medicine
Education
Other, 1990
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

1448 S San Gabriel BL
San Gabriel, CA 91776-3656

1448 S San Gabriel Blvd
San Gabriel, CA 91776-3656
Phone (626) 569-2888

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
75 of 100Reported as individual

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Anaheim Memorial Medical Center Past Accepting new patients
Oscar L. Chien, MD, a Professional Medical Corporation Specialist PastSince Jan 18, 2000 Accepting new patients
Quality Care Home Health Specialist Inc. PastSince May 1, 2022 Accepting new patients

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Ownership & related parties

All facility ownership & control disclosures 6

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

FacilityTypeRoleSince
Broadway Healthcare CenterSan Gabriel, CA, CCN 056201 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Sep 9, 2013
Sep 9, 2013
Quality Care Home Health Specialist Inc.West Covina, CA, CCN 557792 Home health agency W-2 Managing Employee (20%) May 1, 2022
Good Will Plus, IncorporatedMonterey Park, CA, CCN 058428 Home health agency Contracted Managing Employee
Corporate Director		 Jul 15, 2015
Jul 15, 2015
Happy Home Health ServicesArcadia, CA, CCN 059173 Home health agency Corporate Director Jan 1, 2012
Quality Care Hospice, Inc.West Covina, CA, CCN 921643 Hospice Contracted Managing Employee (30%)
Corporate Director (30%)		 May 1, 2022
May 1, 2022
Beta Hospice Care IncSan Bernardino, CA, CCN A11527 Hospice W-2 Managing Employee Mar 18, 2024

Owned or controlled facilities with NPI records 6

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

Organizations & group practices 3

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": "1157414400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1585785600000",
    "number": "1679675904",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1448 S. SAN GABRIEL BL.",
            "city": "SAN GABRIEL",
            "state": "CA",
            "postal_code": "91776",
            "telephone_number": "626-569-2888",
            "fax_number": "626-569-9929"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1448 S. SAN GABRIEL BL.",
            "city": "SAN GABRIEL",
            "state": "CA",
            "postal_code": "91776",
            "telephone_number": "626-569-2888",
            "fax_number": "626-569-9929"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHIEN",
        "first_name": "OSCAR",
        "middle_name": "L.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-09-05",
        "last_updated": "2020-04-02",
        "certification_date": "2020-04-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "CA",
            "license": "A54999",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Gabriel, CA

Sources for this page

Verify at the official NPI Registry.