Individual provider Active NPI

John Thanasukarn, M.D.

  • Pediatrics Physician
  • Downey, CA
National Provider Identifier
1144674003
Registry record updated Oct 7, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
A156685 Issued in CA
Practice address
8530 Firestone Blvd
Downey, CA 90241-4926
Phone
(562) 867-7999
NPI assigned
Apr 18, 2016
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 7, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X A156685 CA Primary

Addresses

Primary practice location

8530 Firestone Blvd
Downey, CA 90241-4926

Mailing address

54701 File Number
Los Angeles, CA 90074-4701
Phone (096) 514-3009

Other practice location 1

25845 Barton Rd
Loma Linda, CA 92354-3899
Phone (909) 558-2828

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190528001880 CA Practitioner - Pediatric Medicine 7810230265 Reassigns benefits to 2 organizations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A156685CAMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Faculty Physicians and Surgeons of Llusm Pediatrics Current Accepting new patients
Faculty Physicians and Surgeons of Llusm CurrentSince Jul 1, 2019 Accepting new patients
Sac Health System CurrentSince Jul 1, 2019 Accepting new patients
Faculty Physicians and Surgeons of Llusm Current Accepting new patients
Faculty Physicians and Surgeons of Llusm Current Accepting new patients
Sac Health System CurrentSince Jul 1, 2019 Accepting new patients
Sac Health System Current Accepting new patients
Faculty Physicians and Surgeons of Llusm Past Accepting new patients

Locations

7223 Church St
Ste C1
Highland, CA 92346
Phone (909) 425-3946

82934 Civic Center Dr
Indio, CA 92201
Phone (760) 477-0733

82934 Civic Center Dr
Ste 101
Indio, CA 92201

11234 Anderson St
Loma Linda, CA 92350
Phone (909) 558-3016

25455 Barton Rd
Ste 108A
Loma Linda, CA 92354
Phone (909) 558-1617

11370 Anderson St
#B100
Loma Linda, CA 92354
Phone (909) 558-2848

11370 Anderson St
Ste 1800
Loma Linda, CA 92354
Phone (909) 558-2154

File Number 54701
Los Angeles, CA 90074
Phone (909) 651-4300

28078 Baxter Rd
Ste 110
Murrieta, CA 92563
Phone (951) 290-4000

26780 Barton Rd
Redlands, CA 92373
Phone (909) 558-5174

1455 3rd Ave
Sn Bernrdno, CA 92408
Phone (909) 382-7146

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: john.thanasukarnmd.p1@direct.jwch.nextgenshare.com
  • Direct secure messaging: jthanasukarn94852@direct.llu.edu

Organizations & group practices 8

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": "1460937600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759795200000",
    "number": "1144674003",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "54701 FILE NUMBER",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900744701",
            "telephone_number": "096-514-3009"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8530 FIRESTONE BLVD",
            "city": "DOWNEY",
            "state": "CA",
            "postal_code": "902414926",
            "telephone_number": "562-867-7999"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "25845 Barton Rd",
            "address_purpose": "LOCATION",
            "city": "Loma Linda",
            "state": "CA",
            "postal_code": "923543899",
            "country_code": "US",
            "telephone_number": "909-558-2828",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "THANASUKARN",
        "first_name": "JOHN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-04-18",
        "last_updated": "2025-10-07",
        "certification_date": "2025-10-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "A156685",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Downey, CA

Sources for this page

Verify at the official NPI Registry.