John None Lin, DO

Primary specialty

Sleep Medicine (Internal Medicine) PhysicianTaxonomy code 207RS0012X

License

20A25418 Issued in CA

Practice address

2182 East St
Concord, CA 94520-2012

Phone

(925) 310-8978

Fax

(925) 310-8978

NPI assigned

Apr 21, 2022

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

Medicare fee-for-service enrollment

Enrolled in PA

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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

{
    "created_epoch": "1650499200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784678400000",
    "number": "1780328203",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2182 EAST ST",
            "city": "CONCORD",
            "state": "CA",
            "postal_code": "945202012",
            "telephone_number": "925-310-8978",
            "fax_number": "925-310-8978"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2182 EAST ST",
            "city": "CONCORD",
            "state": "CA",
            "postal_code": "945202012",
            "telephone_number": "925-310-8978",
            "fax_number": "925-310-8978"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LIN",
        "first_name": "JOHN",
        "middle_name": "NONE",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-21",
        "last_updated": "2026-07-22",
        "certification_date": "2026-07-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "CA",
            "license": "20A25418",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Linda Melissa Lima Rivas
• Lime Ridge Healthcare, LLC
• Limeridge Senior Living LLC
• Andrew Florencio Limones Jr.
• Hartwell N Lin, M.D.
• Leona Lin, OTR
• Terence Lin
• Daniela Linares
• Katherine Melissa Linares, M.S., BCBA
• Lizette Linares

• Sleep Medicine (Internal Medicine) Physician in Concord, CA
• Providers in Concord, CA by specialty
• Sleep Medicine (Internal Medicine) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.