Tiffany Julia Spencer, DNP, NP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

95036203 Issued in CA

Practice address

300 Pasteur Dr
Stanford, CA 94305-2200

Phone

(650) 723-4000

NPI assigned

Nov 22, 2023

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 3

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• Golden Valley Health Centers

  • Federally Qualified Health Center (FQHC)
  • Turlock, CA
  • NPI 1356445753
  Medicare reassignment
• LPCH Medical Group Div of Lucile

  • Children's Hospital
  • Palo Alto, CA
  • NPI 1417907940
  Medicare reassignment
• Stanford Health Care

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1437292927
  Medicare reassignment
• Golden Valley Health Center

  • Federally Qualified Health Center (FQHC)
  • Modesto, CA
  • NPI 1780668863
  NPD
• Golden Valley Health Centers

  • Community/Retail Pharmacy
  • Merced, CA
  • NPI 1093817405
  NPD

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

{
    "created_epoch": "1700611200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783296000000",
    "number": "1821863481",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-723-4000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "847 W Childs Ave",
            "address_purpose": "LOCATION",
            "city": "Merced",
            "state": "CA",
            "postal_code": "953416862",
            "country_code": "US",
            "telephone_number": "209-722-4842",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SPENCER",
        "first_name": "TIFFANY",
        "middle_name": "JULIA",
        "credential": "DNP, NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2023-11-22",
        "last_updated": "2026-07-06",
        "certification_date": "2026-07-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "95036203",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "CA",
            "license": "95253338",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "95036203",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Megan Sparrow
• Martina Kelly Speight, NP
• Katie Marie Speirs, MD
• Allyson Campbell Spence, MD, PHD
• Sean Paul Spencer, MD, PHD
• Adam Samuel Abdur-Rahim Sperling, MD, PHD
• Hannah Reusch Spero, MSN, APRN, NP-C
• Dimitri Sarantos Speron
• Edda Frauke Spiekerkoetter, M.D.
• Konstantinos Spiliotopoulos, M.D.

• Nurse Practitioner in Stanford, CA
• Providers in Stanford, CA by specialty
• Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 6, 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.
• 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.