Individual provider Active NPI

John Chan, MD

  • Internal Medicine Physician
  • Torrance, CA
National Provider Identifier
1841503125
Registry record updated Dec 7, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A121533 Issued in CA
Practice address
3330 Lomita Blvd
Torrance, CA 90505-5002
Phone
(310) 214-0811
NPI assigned
Jul 15, 2010
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 7, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A121533 CA Primary

Addresses

Primary practice location

3330 Lomita Blvd
Torrance, CA 90505-5002

Mailing address

PO Box 35380
Las Vegas, NV 89133-5380
Phone (702) 579-3203

Other practice location 1

8700 Beverly Blvd
Rm 5512
Los Angeles, CA 90048
Phone (310) 423-5581

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
I20131003000215 CA Practitioner - Internal Medicine 5890929905 Reassigns benefits to 1 organization

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A121533CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Healthcare Partners Affiliates Medical Group CurrentSince Aug 14, 2013 Accepting new patients
Healthcare Partners Affiliates Medical Group Internal Medicine CurrentSince Aug 14, 2013 Accepting new patients
Memorial Medical Group Inc Past Accepting new patients
Providence Health System Southern California Past Accepting new patients
Torrance Memorial Medical Center Past Accepting new patients
Providence Health System - Southern California Past Accepting new patients

Locations

1236 N Magnolia Ave
Anaheim, CA 92801
Phone (714) 995-1000

5957 W Ramsey St
Banning, CA 92220
Phone (951) 845-8864

2910 Jefferson St
Ste 100
Carlsbad, CA 92008
Phone (760) 729-8600

824 E Carson St
Ste 104
Carson, CA 90745
Phone (310) 830-9706

1700 N Waterman Ave
Sn Bernrdno, CA 92404
Phone (909) 883-8611

3330 Lomita Blvd
Fl 5
Torrance, CA 90505
Phone (310) 517-4735

19191 S Vermont Ave
Torrance, CA 90502
Phone (310) 354-4211

3330 Lomita Blvd
Torrance, CA 90505
Phone (310) 517-4675

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

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 and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1279152000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765065600000",
    "number": "1841503125",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35380",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891335380",
            "telephone_number": "702-579-3203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3330 LOMITA BLVD",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905055002",
            "telephone_number": "310-214-0811"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8700 Beverly Blvd",
            "address_2": "Rm 5512",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "90048",
            "country_code": "US",
            "telephone_number": "310-423-5581",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHAN",
        "first_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-07-15",
        "last_updated": "2025-12-07",
        "certification_date": "2025-12-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A121533",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Torrance, CA

Sources for this page

Verify at the official NPI Registry.