Oliver Maximiliano Chen

Primary specialty

Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X

Practice address

3767 Central Ave
San Diego, CA 92105-2599

Phone

(619) 584-4010

Fax

(619) 278-0770

NPI assigned

Jan 20, 2026

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Oli Maximiliano Chen Other name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Practice roles

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.

• Stepping Stone of San Diego, Inc.

  • Substance Abuse Rehabilitation Facility
  • San Diego, CA
  • NPI 1013045905
  NPD (past)
• Stepping Stone San Diego

  • Substance Use Disorder Rehabilitation Clinic/Center
  • San Diego, CA
  • NPI 1083388854
  NPD (past)

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

{
    "created_epoch": "1768867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768867200000",
    "number": "1134088685",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3767 CENTRAL AVE",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921052599",
            "telephone_number": "619-584-4010",
            "fax_number": "619-278-0770"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3767 CENTRAL AVE",
            "city": "SAN DIEGO",
            "state": "CA",
            "postal_code": "921052599",
            "telephone_number": "619-584-4010",
            "fax_number": "619-278-0770"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHEN",
        "first_name": "OLIVER",
        "middle_name": "MAXIMILIANO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-01-20",
        "last_updated": "2026-01-20",
        "certification_date": "2026-01-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "OLI",
            "last_name": "CHEN",
            "middle_name": "MAXIMILIANO",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Lydia Shi-Yu Chen, MD
• Maggie Chen, ASW
• Min-Hsuan Chen
• Natalie Chen, MD
• Norman C Chen, MD
• Phoebe Chen
• Rachel J Chen, PSYD
• Richard Chen
• Richard H. Chen, MD
• Ryan Chen

• Student in an Organized Health Care Education/Training Program in San Diego, CA
• Providers in San Diego, CA by specialty
• Student in an Organized Health Care Education/Training Program in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.