Individual provider Active NPI

Ray Rui Zhang, MD, PHD

  • Nuclear Medicine Physician
  • Stanford, CA
National Provider Identifier
1417418856
Registry record updated Mar 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nuclear Medicine PhysicianTaxonomy code 207U00000X
License
A182515 Issued in CA
Practice address
300 Pasteur Dr
Stanford, CA 94305-2200
Phone
(650) 723-4000
NPI assigned
Mar 28, 2019
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 5, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X A182515 CA
Nuclear Medicine Physician 207U00000X A182515 CA Primary
Internal Medicine Physician 207R00000X 125.073727 IL

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

333 E Ontario St Apt 813
Chicago, IL 60611-6945
Phone (608) 770-9649

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, HI2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20241114003743 CA Practitioner - Nuclear MedicinePractitioner - Diagnostic Radiology 7618401514 Reassigns benefits to 6 organizations
I20260217002921 HI Practitioner - Diagnostic Radiology 7618401514 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nuclear MedicineAlso: Diagnostic Radiology
Education
University of Wisconsin School of Medicine, 2019
Medicare assignment
May accept Medicare assignment
Group practices
John Muir Magnetic Imaging CenterGroup PAC ID 9032019625, 57 clinicians

Practice addresses (Care Compare)

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598-3122
Phone (925) 295-1545

1601 Ygnacio Vly Rd
Walnut Creek, CA 94596-0921
Phone (925) 939-3000

500 Ala Moana Blvd
Suite 7 421
Honolulu, HI 96813-4902
Phone (925) 296-7150

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
125.073727ILMDInternal Medicine Physician
A182515CAMDNuclear Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Bay Imaging Consultants Medical Group Inc Diagnostic Radiology CurrentSince Jul 25, 2025 Accepting new patients
Bay Imaging Consultants Medical Group Inc Diagnostic Radiology Current Accepting new patients
Stanford Health Care CurrentSince Dec 4, 2025 Accepting new patients
Advanced Radiology and Interventional Associates Inc Diagnostic Radiology CurrentSince Sep 15, 2024 Accepting new patients
Bay Imaging Consultants Medical Group Inc Diagnostic Radiology CurrentSince Jan 8, 2026 Accepting new patients
Bay Imaging Consultants Medical Group Inc Diagnostic Radiology CurrentSince Jul 25, 2025 Accepting new patients
LPCH Medical Group Div of Lucile CurrentSince Dec 4, 2025 Accepting new patients
Magnetic Imaging Affiliates, LLC Diagnostic Radiology CurrentSince Jan 8, 2026 Accepting new patients
John Muir Trauma Physicians Billing Service Diagnostic Radiology CurrentSince Jan 17, 2026 Accepting new patients
John Muir Magnetic Imaging Center Diagnostic Radiology CurrentSince Jul 25, 2025 Accepting new patients
Stanford Health Care Internal Medicine CurrentSince Dec 4, 2025 Accepting new patients
Stanford Health Care Internal Medicine Past Accepting new patients
Port City Operating Company, LLC Past Accepting new patients

Locations

3001 Sillect Ave
Bakersfield, CA 93308
Phone (661) 316-6000

1900 Sullivan Ave
Daly City, CA 94015
Phone (650) 991-6503

975 S Fairmont Ave
Lodi, CA 95240
Phone (209) 339-7575

1205 E North St
Manteca, CA 95336
Phone (209) 239-8301

333 Mercy Ave
Merced, CA 95340
Phone (209) 385-1280

450 Glass Ln
Ste C
Modesto, CA 95356

3100 Summit St
Oakland, CA 94609
Phone (510) 869-8377

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

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

525 W Acacia St
Stockton, CA 95203
Phone (209) 944-5410

3439 Brookside Rd
Ste 107
Stockton, CA 95219
Phone (209) 466-5027

607 E Magnolia St
Stockton, CA 95202
Phone (209) 616-6600

1800 N California St
Stockton, CA 95204
Phone (209) 467-6400

3439 Brookside Rd
Stockton, CA 95219

1617 N California St
Ste 1A
Stockton, CA 95204
Phone (209) 467-6363

300 Hospital Dr
#1112
Vallejo, CA 94589
Phone (707) 554-4107

115 La Casa Via
#100
Walnut Creek, CA 94598
Phone (925) 295-1545

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
Phone (925) 295-1545

500 Ala Moana Blvd
Ste 7421
Honolulu, HI 96813

Organizations & group practices 15

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.

View all 15

Hospital & facility affiliations 5

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": "1553731200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772668800000",
    "number": "1417418856",
    "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": "333 E Ontario St Apt 813",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606116945",
            "country_code": "US",
            "telephone_number": "608-770-9649",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZHANG",
        "first_name": "RAY",
        "middle_name": "RUI",
        "credential": "MD, PHD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-03-28",
        "last_updated": "2026-03-05",
        "certification_date": "2026-03-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A182515",
            "primary": false
        },
        {
            "code": "207U00000X",
            "taxonomy_group": "",
            "desc": "Nuclear Medicine",
            "state": "CA",
            "license": "A182515",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "125.073727",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Stanford, CA

Sources for this page

Verify at the official NPI Registry.