Individual provider Active NPI

John Terence Tan So, MD

  • Internal Medicine Physician
  • Downey, CA
National Provider Identifier
1801924295
Registry record updated Nov 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A98802 Issued in CA
Practice address
10441 Lakewood Blvd Ste Ab
Downey, CA 90241-2744
Phone
(562) 869-1070
Fax
(562) 286-8777
NPI assigned
Feb 28, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 29, 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 A98802 CA Primary

Addresses

Primary practice location

10441 Lakewood Blvd Ste Ab
Downey, CA 90241-2744

Mailing address

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

Other identifiers 1

IdentifierTypeStateIssuer
A98802OtherCAMEDICAL LICENSE

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
I20070927000959 CA Practitioner - Internal Medicine 0446345011 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Healthcare Partners Affiliates Medical GroupGroup PAC ID 7315842002, 775 clinicians

Practice addresses (Care Compare)

1081 Long Beach Blvd
Suite B
Long Beach, CA 90813-3217
Phone (562) 432-5661

Hospital & facility affiliations

  • Pih Health Downey Hospital Hospital, Downey, CA, CCN 050393

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A98802CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Healthcare Partners Affiliates Medical Group CurrentSince Nov 24, 2024 Accepting new patients
Healthcare Partners Affiliates Medical Group Internal Medicine CurrentSince Nov 24, 2024 Accepting new patients
Beaver Medical Group P C Internal Medicine Current Accepting new patients
Cassidy Medical Group Inc. Current Accepting new patients
Albion Medical Partners of California West P C Internal Medicine CurrentSince Feb 1, 2021 Accepting new patients
Centers for Family Medicine GP Internal Medicine CurrentSince Nov 24, 2024 Accepting new patients

Locations

925 S Euclid St
Anaheim, CA 92802
Phone (714) 929-2466

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

12900 Park Plaza Dr
Ste 150
Cerritos, CA 90703
Phone (562) 622-2800

12900 Park Plaza Dr
Ste 700
Cerritos, CA 90703
Phone (562) 622-2800

10441 Lakewood Blvd
Ste Ab
Downey, CA 90241
Phone (562) 869-1070

4910 Airport Plaza Dr
Ste 210
Long Beach, CA 90815
Phone (562) 421-3727

3460 Katella Ave
Los Alamitos, CA 90720
Phone (310) 594-6599

724 S El Camino Real
San Clemente, CA 92672
Phone (949) 453-4343

13930 Seal Beach Blvd
Seal Beach, CA 90740
Phone (562) 430-8888

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

145 Thunder Dr
Vista, CA 92083
Phone (760) 630-5487

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1172620800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764374400000",
    "number": "1801924295",
    "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": "10441 LAKEWOOD BLVD STE AB",
            "city": "DOWNEY",
            "state": "CA",
            "postal_code": "902412744",
            "telephone_number": "562-869-1070",
            "fax_number": "562-286-8777"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SO",
        "first_name": "JOHN TERENCE",
        "middle_name": "TAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-28",
        "last_updated": "2025-11-29",
        "certification_date": "2025-11-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A98802",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENSE",
            "identifier": "A98802",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Downey, CA

Sources for this page

Verify at the official NPI Registry.