Individual provider Active NPI

Diane Han, MD

  • Emergency Medicine Physician
  • Palo Alto, CA
National Provider Identifier
1700465721
Registry record updated Jan 2, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A190408 Issued in CA
Practice address
900 Welch Rd Ste 350
Palo Alto, CA 94304-1807
Phone
(408) 981-2115
NPI assigned
Apr 6, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 2, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Emergency Medicine Physician 207P00000X A190408 CA Primary

Addresses

Primary practice location

900 Welch Rd Ste 350
Palo Alto, CA 94304-1807

Mailing address

900 Welch Rd Ste 350
Palo Alto, CA 94304-1807
Phone (408) 981-2115

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
I20250106001334 CA Practitioner - Emergency Medicine 5395273270 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Emergency Physicians Associates San Jose PCGroup PAC ID 8921344292, 131 clinicians
County of Santa ClaraGroup PAC ID 1254244973, 1,000 clinicians

Practice addresses (Care Compare)

225 N Jackson Ave
San Jose, CA 95116-1603
Phone (408) 259-5000

751 S Bascom Ave
San Jose, CA 95128-2604

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A190408CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
County of Santa Clara Current Accepting new patients
Emergency Physicians Associates San Jose PC Emergency Medicine CurrentSince Jul 1, 2025 Accepting new patients
County of Santa Clara CurrentSince Jun 25, 2025 Accepting new patients
County of Santa Clara CurrentSince Jun 25, 2025 Accepting new patients
Cep America-California Emergency Medicine CurrentSince Dec 15, 2024 Accepting new patients
Cep America - California Emergency Medicine Current Accepting new patients
Cep America-California Emergency Medicine CurrentSince Dec 15, 2024 Accepting new patients

Locations

2100 Powell St
Ste 400
Emeryville, CA 94608
Phone (510) 350-2638

500 W Hospital Rd
French Camp, CA 95231
Phone (209) 468-6000

7475 Camino Arroyo
Gilroy, CA 95020
Phone (408) 852-2400

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

1993 McKee Rd
San Jose, CA 95116
Phone (408) 254-6320

751 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-5110

2105 Forest Ave
San Jose, CA 95128
Phone (408) 947-2500

225 N Jackson Ave
San Jose, CA 95116
Phone (408) 347-4051

750 S Bascom Ave
San Jose, CA 95128
Phone (408) 885-2320

500 Tully Rd
San Jose, CA 95111
Phone (408) 817-1433

660 S Fair Oaks Ave
Sunnyvale, CA 94086
Phone (408) 885-7366

1420 N Tracy Blvd
Tracy, CA 95376
Phone (209) 832-6018

Interoperability endpoints

  • Direct secure messaging: dhan719237@hisp.ehr.sutterhealth.org
  • Direct secure messaging: dhan184784@santaclaravalley.direct-ci.net

Organizations & group practices 7

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 3

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": "1617667200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1735776000000",
    "number": "1700465721",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "900 WELCH RD STE 350",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041807",
            "telephone_number": "408-981-2115"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 WELCH RD STE 350",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041807",
            "telephone_number": "408-981-2115"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAN",
        "first_name": "DIANE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-06",
        "last_updated": "2025-01-02",
        "certification_date": "2025-01-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A190408",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.