Individual provider Active NPI

Luis Dakay Tan Jr., M.D.

  • Hospitalist Physician
  • Lancaster, CA
National Provider Identifier
1295823854
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
A46580 Issued in CA
Practice address
43839 15TH St W
Lancaster, CA 93534-4756
Phone
(661) 945-5984
Fax
(661) 726-3890
NPI assigned
Oct 10, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A46580 CA
Pulmonary Disease Physician 207RP1001X A46580 CA
Hospitalist Physician 208M00000X A46580 CA Primary

Addresses

Primary practice location

43839 15TH St W
Lancaster, CA 93534-4756

Mailing address

PO Box 7007
Lancaster, CA 93539-7007
Phone (661) 945-5984

Other identifiers 1

IdentifierTypeStateIssuer
00A465800MedicaidCA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: No
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A46580CAMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Sierra Medical Group Holding Company, Inc. Internal Medicine CurrentSince May 16, 2010 Accepting new patients

Locations

43839 15th St W
Lancaster, CA 93534
Phone (661) 945-5984

44469 10th St W
Lancaster, CA 93534
Phone (661) 945-9411

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Organizations & group practices 1

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

NPI Registry JSON

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

{
    "created_epoch": "1160438400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1295823854",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7007",
            "city": "LANCASTER",
            "state": "CA",
            "postal_code": "935397007",
            "telephone_number": "661-945-5984",
            "fax_number": "661-726-3890"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "43839 15TH ST W",
            "city": "LANCASTER",
            "state": "CA",
            "postal_code": "935344756",
            "telephone_number": "661-945-5984",
            "fax_number": "661-726-3890"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TAN",
        "first_name": "LUIS",
        "middle_name": "DAKAY",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-10",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A46580",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CA",
            "license": "A46580",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A46580",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A465800",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Lancaster, CA

Sources for this page

Verify at the official NPI Registry.