David Wei, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

A112876 Issued in CA

Practice address

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598-3122

Phone

(925) 939-5800

NPI assigned

Jun 15, 2007

Last updated

Oct 11, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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

Specialty

Emergency Medicine

Education

Northwestern University Feinberg Medical School, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Medamerica Physician Solutions PCGroup PAC ID 8729221809, 28 clinicians

Cep America - Auc PCGroup PAC ID 9537481692, 26 clinicians

Cep America - CaliforniaGroup PAC ID 6103739131, 1,278 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Comfort Assisting, Inc Home health agency, Walnut Creek, CA, CCN 059537
• John Muir Medical Center - Walnut Creek Campus Hospital, Walnut Creek, CA, CCN 050180
• San Ramon Regional Medical Center Hospital, San Ramon, CA, CCN 050689
• John Muir Medical Center - Concord Campus Hospital, Concord, CA, CCN 050496

Merit-based Incentive Payment System (MIPS)

Final score

96.69 of 100Reported as group

Quality

90

Improvement activities

40

Cost

78.43

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: david.wei.1@20515.direct.athenahealth.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Cep America - Auc PC

  dba Vituity

  • General Practice Physician
  • Walnut Creek, CA
  • NPI 1568861524
  Medicare reassignment Care Compare group NPD
• Cep America - California

  dba Vituity

  • Emergency Medicine Physician
  • San Francisco, CA
  • NPI 1023063542
  Medicare reassignment Care Compare group NPD
• Medamerica Physician Solutions PC

  dba Jovive Wound Care

  • Clinic/Center
  • Walnut Creek, CA
  • NPI 1487237111

  Emergency Medicine

  Medicare reassignment Care Compare group NPD
• Cep America - Auc PC

  • General Practice Physician
  • Walnut Creek, CA
  • NPI 1487294385

  Emergency Medicine

  NPD
• Cep America - California

  dba Vituity

  • Emergency Medicine Physician
  • Concord, CA
  • NPI 1538180807
  NPD
• Cep America-California

  • Emergency Medicine Physician
  • Murrieta, CA
  • NPI 1588552848
  NPD
• Cep America - Auc PC

  • General Practice Physician
  • Newport News, VA
  • NPI 1104657329
  NPD
• Brockton Podiatry Group a Prof Corp

  • Foot & Ankle Surgery Podiatrist
  • Redlands, CA
  • NPI 1275867228
  NPD (past)
• California Emergency Physician Medical Group

  • General Practice Physician
  • Walnut Creek, CA
  • NPI 1962791293
  NPD (past)
• Cep America - Auc PC

  • General Practice Physician
  • San Ramon, CA
  • NPI 1750024493

  Emergency Medicine

  NPD (past)
• Hayward Sisters Hospital

  dba St. Rose Hospital

  • General Acute Care Hospital
  • Hayward, CA
  • NPI 1942298153
  NPD (past)
• John Muir Health

  dba John Muir Health Medical Center, Concord Campus

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  NPD (past)

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

• Comfort Assisting, Inc.

  • Home Health Agency
  • Walnut Creek, CA
  • NPI 1467778100
  Care Compare affiliation
• John Muir Health

  dba John Muir Health, Walnut Creek Medical Center

  • General Acute Care Hospital
  • Walnut Creek, CA
  • NPI 1740215219
  Care Compare affiliation
• John Muir Health

  dba John Muir Health Medical Center, Concord Campus

  • General Acute Care Hospital
  • Concord, CA
  • NPI 1801821376
  Care Compare affiliation
• San Ramon Regional Medical Center, LLC

  • General Acute Care Hospital
  • San Ramon, CA
  • NPI 1932131489
  Care Compare affiliation

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

{
    "created_epoch": "1181865600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760140800000",
    "number": "1437354081",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 POWELL ST STE 900",
            "city": "EMERYVILLE",
            "state": "CA",
            "postal_code": "946081844",
            "telephone_number": "925-471-4291"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1601 YGNACIO VALLEY RD",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945983122",
            "telephone_number": "925-939-5800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WEI",
        "first_name": "DAVID",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-06-15",
        "last_updated": "2025-10-11",
        "certification_date": "2025-10-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A112876",
            "primary": true
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "CA",
            "license": "A112876",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Keonte Dejanae Webb
• Kyriele Webb
• Jovance Damian Webster Jr.
• Catherine Linda Wegner, M.S., CCC-SLP
• Karen Richelle Wegstein
• Mandy Wei
• Monica Wei
• Timothy Y Wei, M.D., PH.D.
• Helen Nguyen Weidemann, MD
• Sena Katherine Weidkamp, LMFT

• Emergency Medicine Physician in Walnut Creek, CA
• Providers in Walnut Creek, CA by specialty
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 11, 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.