Individual provider Active NPI

Tulio Alberto Valdez Vargas, MD

  • Pediatric Otolaryngology Physician
  • Palo Alto, CA
National Provider Identifier
1235351099
Registry record updated Dec 1, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Otolaryngology PhysicianTaxonomy code 207YP0228X
License
C149490 Issued in CA
Practice address
725 Welch Rd
Palo Alto, CA 94304-1601
Phone
(650) 497-8000
NPI assigned
May 2, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 1, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Otolaryngology Physician 207YP0228X C149490 CA Primary
Otolaryngology Physician 207Y00000X C149490 CA

Addresses

Primary practice location

725 Welch Rd
Palo Alto, CA 94304-1601

Mailing address

725 Welch Rd
Palo Alto, CA 94304-1601
Phone (650) 497-8000

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
I20170829004201 CA Practitioner - OtolaryngologyPractitioner - Other (Physician) 2466543731 Reassigns benefits to 2 organizations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
C149490CAMDOtolaryngology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
LPCH Medical Group Div of Lucile CurrentSince Aug 14, 2017 Accepting new patients
Stanford Health Care CurrentSince Aug 14, 2017 Accepting new patients
Stanford Health Care CurrentSince Aug 14, 2017 Accepting new patients
Stanford Health Care Current Accepting new patients
Stanford Hospital and Clinics Past Accepting new patients
Methodist Healthcare System of San Antonio, LTD., L.L.P. Past Accepting new patients
Connecticut Children'S Medical Center Past Accepting new patients
Texas Children'S Physician Group Past Accepting new patients
Lucile Salter Packard Children'S Hospital at Stanford Past Accepting new patients
Texas Children'S Hospital Past Accepting new patients
Harris County Hospital District Past Accepting new patients

Locations

730 Welch Rd
Palo Alto, CA 94304
Phone (650) 723-4800

725 Welch Rd
Palo Alto, CA 94304
Phone (650) 497-8979

801 Welch Rd
Palo Alto, CA 94304
Phone (650) 723-5281

725 Welch Rd
#D
Palo Alto, CA 94304

300 Pasteur Dr
Stanford, CA 94305
Phone (650) 498-5710

Interoperability endpoints

  • Direct secure messaging: tvaldez2974@connecticutchildrens.direct-ci.com

Organizations & group practices 11

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.

NPI Registry JSON

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

{
    "created_epoch": "1178064000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764547200000",
    "number": "1235351099",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "725 WELCH RD",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943041601",
            "telephone_number": "650-497-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VALDEZ VARGAS",
        "first_name": "TULIO",
        "middle_name": "ALBERTO",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-05-02",
        "last_updated": "2025-12-01",
        "certification_date": "2025-12-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207YP0228X",
            "taxonomy_group": "",
            "desc": "Otolaryngology, Pediatric Otolaryngology",
            "state": "CA",
            "license": "C149490",
            "primary": true
        },
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "CA",
            "license": "C149490",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palo Alto, CA

Sources for this page

Verify at the official NPI Registry.