NPIMap

Individual provider Active NPI

Nicholas Trakul, MD, PHD

  • Radiation Oncology Physician
  • Stanford, CA
National Provider Identifier
1639332687
Registry record updated Mar 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
A110066 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
Jul 9, 2008
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X A110066 CA Primary

Addresses

Primary practice location

300 Pasteur Dr
Stanford, CA 94305-2200

Mailing address

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

Other practice location 1

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
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20130618000776 CA Practitioner - Radiation Oncology 6709025943 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Wayne State University School of Medicine, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Stanford Health CareGroup PAC ID 6709797491, 3,152 clinicians

Practice addresses (Care Compare)

300 Pasteur Dr
Stanford, CA 94305-2200
Phone (650) 723-4000

5725 W Las Positas Blvd
Pleasanton, CA 94588-4007

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
110066CAMDClinical Social Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Stanford Health Care CurrentSince Feb 1, 2017 Accepting new patients
Stanford Health Care CurrentSince Feb 1, 2017 Accepting new patients
University Healthcare Alliance CurrentSince Dec 3, 2018 Accepting new patients
LPCH Medical Group Div of Lucile CurrentSince Feb 1, 2017 Accepting new patients
Eden Medical Center/San Leandro Hospital Campus Past Accepting new patients
Stanford Health Care Tri-Valley Past Accepting new patients
The Hospital Committee for the Livermore-Pleasanton Areas Past Accepting new patients
Lucile Salter Packard Children'S Hospital at Stanford Past Accepting new patients
Stanford Hospital and Clinics Past Accepting new patients

Locations

2001 Dwight Way
Berkeley, CA 94704
Phone (510) 204-1880

20126 Stanton Ave
Ste 101
Castro Valley, CA 94546
Phone (510) 581-0556

1300 Crane St
Menlo Park, CA 94025
Phone (510) 785-5000

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

725 Welch Rd
#D
Palo Alto, CA 94304

875 Blake Wilbur Dr
Palo Alto, CA 94304
Phone (650) 723-7621

5725 W Las Positas Blvd
Ste 102
Pleasanton, CA 94588

4725 1st St
Ste 100
Pleasanton, CA 94566
Phone (925) 462-7060

5725 W Las Positas Blvd
#102
Pleasanton, CA 94588

5725 W Las Positas Blvd
Ste 100B
Pleasanton, CA 94588
Phone (925) 621-7700

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

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: ntrakul43600@direct.stanfordhealthcare.org

Organizations & group practices 9

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 11

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": "1215561600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772409600000",
    "number": "1639332687",
    "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": "725 Welch Rd",
            "address_purpose": "LOCATION",
            "city": "Palo Alto",
            "state": "CA",
            "postal_code": "943041601",
            "country_code": "US",
            "telephone_number": "650-497-8000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TRAKUL",
        "first_name": "NICHOLAS",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-07-09",
        "last_updated": "2026-03-02",
        "certification_date": "2026-03-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CA",
            "license": "A110066",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.