Joshua James Gruber, M.D.

Primary specialty

Medical Oncology PhysicianTaxonomy code 207RX0202X

License

T2614 Issued in TX

Practice address

900 Blake Wilbur Dr
Palo Alto, CA 94304-2201

Phone

(650) 498-6004

NPI assigned

May 3, 2011

Sex

Male

Sole proprietor

No

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, TX2 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

Specialty

Medical Oncology

Education

Perelman School of Med at the University of Pennsylvania, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Texas Southwestern Medical Center at DallasGroup PAC ID 0648188250, 3,156 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ut of Texas Southwestern University Hospital - William P. Clements Jr. Hospital, Dallas, TX, CCN 450044

Merit-based Incentive Payment System (MIPS)

Final score

82.87 of 100Reported as group

Quality

70.15

Promoting interoperability

100

Improvement activities

40

Cost

72.75

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• University of Texas Southwestern Medical Center at Dallas

  • Anesthesiology Physician
  • Dallas, TX
  • NPI 1942270566
  Medicare reassignment Care Compare group NPD
• LPCH Medical Group Div of Lucile

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

  • General Acute Care Hospital
  • Stanford, CA
  • NPI 1437292927
  Medicare reassignment
• The University of Texas Southwestern Medical Center at Dallas

  • Clinical Medical Laboratory
  • Dallas, TX
  • NPI 1396832713
  NPD
• University of Texas Southwestern Medical Center at Dallas

  • Internal Medicine Physician
  • Dallas, TX
  • NPI 1760452767
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• University of Texas Southwestern Medical Center at Dallas

  • General Acute Care Hospital
  • Dallas, TX
  • NPI 1285798918
  Care Compare affiliation

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

{
    "created_epoch": "1304380800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787097600000",
    "number": "1437441904",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "269 CAMPUS DRIVE",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943055151"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 BLAKE WILBUR DR",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042201",
            "telephone_number": "650-498-6004"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6201 Harry Hines Blvd",
            "address_purpose": "LOCATION",
            "city": "Dallas",
            "state": "TX",
            "postal_code": "753902200",
            "country_code": "US",
            "telephone_number": "214-633-5555",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRUBER",
        "first_name": "JOSHUA",
        "middle_name": "JAMES",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-05-03",
        "last_updated": "2026-08-19",
        "certification_date": "2026-08-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A122149",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "TX",
            "license": "T2614",
            "primary": true
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "CA",
            "license": "A122149",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• April Groff, PH.D.
• Daisy Carolina Diaz Gross, NP
• Sang Gross
• Lee Grossman, M.D.
• Megan Elizabeth Grove, MS, CGC
• Tanja Andrea Gruber, MD
• Janelle Gruhn
• Chao Gu
• Xin Gu, PHARMD
• Sri Sravya Gudipati, PA-C

• Medical Oncology Physician in Palo Alto, CA
• Providers in Palo Alto, CA by specialty
• Medical Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 19, 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.