Margaret Leftwich Miller, MD

Primary specialty

Forensic Psychiatry PhysicianTaxonomy code 2084F0202X

License

A49932 Issued in CA

Practice address

2100 Napa Vallejo Highway
Napa, CA 94558-6293

Phone

(707) 253-5000

Fax

(707) 253-5513

NPI assigned

May 18, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Contra Costa County

  dba West County Adult Mental Health Services

  • Adult Mental Health Clinic/Center
  • San Pablo, CA
  • NPI 1376620336
  Medicare reassignment NPD
• Contra Costa County

  dba Contra Costa Health

  • General Acute Care Hospital
  • Martinez, CA
  • NPI 1386719086
  NPD
• Contra Costa County

  dba Transitional Services

  • Community/Behavioral Health Agency
  • Martinez, CA
  • NPI 1750509162
  NPD
• State of California - Department of Developmental Services

  dba Lanterman Community Clinic

  • Federally Qualified Health Center (FQHC)
  • Pomona, CA
  • NPI 1093085565
  NPD (past)

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

{
    "created_epoch": "1147910400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1093768160",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1600 9TH ST",
            "address_2": "ROOM 205 MAILSTOP 2-3",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958146414",
            "telephone_number": "916-654-2431",
            "fax_number": "916-654-3186"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2100 NAPA VALLEJO HIGHWAY",
            "city": "NAPA",
            "state": "CA",
            "postal_code": "945586293",
            "telephone_number": "707-253-5000",
            "fax_number": "707-253-5513"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MILLER",
        "first_name": "MARGARET",
        "middle_name": "LEFTWICH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-18",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084F0202X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Forensic Psychiatry",
            "state": "CA",
            "license": "A49932",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Emma Miller, D.O.
• Heidi Miller
• Katherine Miller
• Lisa K Miller, CADC-CAS
• Lovera Wolf Miller, M.D.
• Veronica Miller
• Wendi Ann Miller, RN
• Gary K. Mills, PH.D.
• Lawrence A. Mills, MD
• Michael Andrew Mills, MFT

• Forensic Psychiatry Physician in Napa, CA
• Providers in Napa, CA by specialty
• Forensic Psychiatry Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.