Dennis Li

Primary specialty

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

Practice address

1450 Treat Blvd Ste 320
Walnut Creek, CA 94597-2168

Phone

(925) 296-9827

NPI assigned

May 4, 2021

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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

Specialty

Family Practice

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

John Muir Physician NetworkGroup PAC ID 6608789813, 488 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dli163543@ehr.johnmuirhealth.com

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.

• John Muir Physician Network

  • General Practice Physician
  • Walnut Creek, CA
  • NPI 1841407665
  Medicare reassignment Care Compare group NPD

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

• John Muir Health

  • General Acute Care Hospital
  • Walnut Creek, CA
  • NPI 1740215219
  Care Compare affiliation

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

{
    "created_epoch": "1620086400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763424000000",
    "number": "1356924559",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1450 TREAT BLVD STE 300",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945972168",
            "telephone_number": "925-952-2828"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1450 TREAT BLVD STE 320",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945972168",
            "telephone_number": "925-296-9827"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1450 Treat Blvd Ste 160",
            "address_purpose": "LOCATION",
            "city": "Walnut Creek",
            "state": "CA",
            "postal_code": "945972168",
            "country_code": "US",
            "telephone_number": "925-296-9000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LI",
        "first_name": "DENNIS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-05-04",
        "last_updated": "2025-11-18",
        "certification_date": "2025-11-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A197751",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Douglas Lezameta
• Fanny P Lezameta
• Jeniece Nicole Lezer
• Albert Li, PHARMD
• Amity Li
• Fengmei Li
• Guo M Li
• Joy Li, MD
• Lihua Li
• Lili Li, D.M.D.

• Student in an Organized Health Care Education/Training Program in Walnut Creek, CA
• Providers in Walnut Creek, 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 Nov 18, 2025; 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.