David John Wallace, MD, MPH

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

C170028 Issued in CA

Practice address

20103 Lake Chabot Rd
Castro Valley, CA 94546-5305

Phone

(510) 537-1234

NPI assigned

Jun 29, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in PA, CA, SC3 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 3

Specialty

Critical Care (Intensivists)Also: Internal Medicine

Education

Other, 2004

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Alameda Health SystemGroup PAC ID 3779494521, 597 clinicians

Inpatient Specialists of California PCGroup PAC ID 3476864448, 373 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Eden Medical Center Hospital, Castro Valley, CA, CCN 050488
• Alta Bates Summit Medical Center Hospital, Oakland, CA, CCN 050043
• Alta Bates Summit Medical Center - Alta Bates Camp Hospital, Berkeley, CA, CCN 050305
• Highland Hospital Hospital, Oakland, CA, CCN 050320
• Alameda Hospital Hospital, Alameda, CA, CCN 050211

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dwallace166523@santaclaravalley.direct-ci.net
• Direct secure messaging: dwallace580362@hisp.ehr.sutterhealth.org

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.

• Alameda Health System

  • Surgery Physician
  • Oakland, CA
  • NPI 1740332931
  Medicare reassignment Care Compare group NPD
• Inpatient Specialists of California, PC

  • Internal Medicine Physician
  • San Bernardino, CA
  • NPI 1952792475
  Medicare reassignment Care Compare group NPD
• County of Santa Clara

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • San Jose, CA
  • NPI 1699885079
  Medicare reassignment NPD
• McLeod Regional Medical Center of the Pee Dee, Inc

  • Emergency Medical Services (Emergency Medicine) Physician
  • Florence, SC
  • NPI 1154371433

  Critical Care Medicine

  Medicare reassignment NPD
• University of Pittsburgh Physicians

  • Gastroenterology Physician
  • Pittsburgh, PA
  • NPI 1619935004
  Medicare reassignment NPD
• Alameda Health System

  • Clinic/Center
  • Alameda, CA
  • NPI 1124446158
  NPD
• Alameda Health System

  • Federally Qualified Health Center (FQHC)
  • Newark, CA
  • NPI 1497956288
  NPD
• County of Santa Clara

  • Anesthesiology Physician
  • San Jose, CA
  • NPI 1588721500
  NPD
• County of Santa Clara

  • Pharmacy
  • San Jose, CA
  • NPI 1891871919
  NPD
• Cepamerica Texas PA

  • Critical Care Medicine (Internal Medicine) Physician
  • San Antonio, TX
  • NPI 1881269934
  NPD
• Cepamerica Texas PA

  • Critical Care Medicine (Internal Medicine) Physician
  • San Antonio, TX
  • NPI 1932774080
  NPD
• Christus Trinity Clinic Texas

  • Family Medicine Physician
  • Tyler, TX
  • NPI 1285684225
  NPD

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

• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1083815872
  Care Compare affiliation
• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1396764353
  Care Compare affiliation
• Alameda Health System

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1700087590
  Care Compare affiliation
• Alameda Health System

  • General Acute Care Hospital
  • Alameda, CA
  • NPI 1831529049
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Castro Valley, CA
  • NPI 1063812907
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Oakland, CA
  • NPI 1295181477
  Care Compare affiliation
• Sutter Bay Hospitals

  • General Acute Care Hospital
  • Berkeley, CA
  • NPI 1639523004
  Care Compare affiliation

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

{
    "created_epoch": "1183075200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756512000000",
    "number": "1770780835",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3215 BURDECK DR",
            "city": "OAKLAND",
            "state": "CA",
            "postal_code": "946022623"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20103 LAKE CHABOT RD",
            "city": "CASTRO VALLEY",
            "state": "CA",
            "postal_code": "945465305",
            "telephone_number": "510-537-1234"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WALLACE",
        "first_name": "DAVID",
        "middle_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "MD, MPH",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-06-29",
        "last_updated": "2025-08-30",
        "certification_date": "2025-08-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "PA",
            "license": "MD441174",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "SC",
            "license": "85105",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "TX",
            "license": "S9431",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "CA",
            "license": "C170028",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Phuong Dai Vo, MD
• Nightsnow Vogt
• Ezekiel Volkert, M.D.
• Shannon Wagner
• Walgreen Co
• Sidney Evan Wanetick, MD
• Fair H. Wang, MD
• O'Brien Wasome
• Hiroshi De Leon Watanabe
• Colette Waters

• Critical Care Medicine (Internal Medicine) Physician in Castro Valley, CA
• Providers in Castro Valley, CA by specialty
• Critical Care Medicine (Internal Medicine) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 30, 2025; 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.