Diane E Weissman, M.D.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

A72337 Issued in CA

Practice address

1141 Pear Tree LN
Napa, CA 94558-6484

Phone

(707) 254-1770

NPI assigned

Aug 31, 2005

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MP, 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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: diane.weissman.p1@direct.nachci.nextgenshare.com

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.

• Commonwealth Healthcare Corporation

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Saipan, MP
  • NPI 1285858290
  Medicare reassignment NPD
• Kalihi Palama Health Center

  • Federally Qualified Health Center (FQHC)
  • Honolulu, HI
  • NPI 1457304966
  Medicare reassignment NPD
• Commonwealth Healthcare Corporation

  • Rural Health Clinic/Center
  • Rota, MP
  • NPI 1679097315
  NPD
• Commonwealth Healthcare Corporation

  • General Acute Care Hospital
  • Saipan, MP
  • NPI 1871616292
  NPD
• Kalihi Palama Health Center

  • Federally Qualified Health Center (FQHC)
  • Honolulu, HI
  • NPI 1235908831
  NPD
• Prima Medical Foundation

  • Clinic/Center
  • Novato, CA
  • NPI 1811217946
  NPD (past)
• Prima Medical Group, Inc.

  • Family Medicine Physician
  • San Rafael, CA
  • NPI 1154377489
  NPD (past)

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

{
    "created_epoch": "1125446400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769385600000",
    "number": "1689668048",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1141 PEAR TREE LN",
            "city": "NAPA",
            "state": "CA",
            "postal_code": "945586484",
            "telephone_number": "707-254-1770"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1141 PEAR TREE LN",
            "city": "NAPA",
            "state": "CA",
            "postal_code": "945586484",
            "telephone_number": "707-254-1770"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WEISSMAN",
        "first_name": "DIANE",
        "middle_name": "E",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-08-31",
        "last_updated": "2026-01-26",
        "certification_date": "2026-01-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "AZ",
            "license": "45087",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A72337",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "HI",
            "license": "MD-23863",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "442217",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Nicole Marie Weinstein, PSYD
• Irit D. Weir, L.AC., M.S.
• Maya Weir, M.A.
• Jacqueline Soicher Weisbein, D.O.
• Robert S. Weiss
• Richard B. Welch, MD
• Richard Anthony Welker, PHD
• Wellstride Mobility, LLC
• Victoria Welz
• Wenneker & Loftus Inc

• Family Medicine Physician in Napa, CA
• Providers in Napa, CA by specialty
• Family Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 26, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.