Individual provider Active NPI

Ashley E Mills, M.D.

  • Hospitalist Physician
  • Concord, CA
National Provider Identifier
1811428006
Registry record updated Dec 31, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
A157532 Issued in CA
Practice address
2700 Grant St Ste 200
Concord, CA 94520-2270
Phone
(925) 947-3393
NPI assigned
Mar 21, 2017
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Dec 31, 2024

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A157532 CA
Hospitalist Physician 208M00000X A157532 CA Primary

Addresses

Primary practice location

2700 Grant St Ste 200
Concord, CA 94520-2270

Mailing address

1450 Treat Blvd Ste 300
Walnut Creek, CA 94597-2168
Phone (925) 952-2828

Medicare participation

Medicare enrollment files
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: No
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250103003340 CA Practitioner - Hospitalist 6507100658 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hospitalist
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
John Muir Physician NetworkGroup PAC ID 6608789813, 488 clinicians

Practice addresses (Care Compare)

2700 Grant St
Suite 200
Concord, CA 94520-2270
Phone (925) 674-0500

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
John Muir Physician Network CurrentSince Jan 7, 2025 Accepting new patients

Locations

2400 Balfour Rd
Ste 120
Brentwood, CA 94513
Phone (925) 308-8112

2700 Grant St
Ste 200
Concord, CA 94520
Phone (925) 674-2609

380 Civic Dr
Ste 100
Pleasant Hill, CA 94523
Phone (925) 284-3840

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
Phone (925) 295-1545

1450 Treat Blvd
Ste 300
Walnut Creek, CA 94597

Organizations & group practices 1

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1490054400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1735603200000",
    "number": "1811428006",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1450 TREAT BLVD STE 300",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945972168",
            "telephone_number": "925-952-2828"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2700 GRANT ST STE 200",
            "city": "CONCORD",
            "state": "CA",
            "postal_code": "945202270",
            "telephone_number": "925-947-3393"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MILLS",
        "first_name": "ASHLEY",
        "middle_name": "E",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2017-03-21",
        "last_updated": "2024-12-31",
        "certification_date": "2024-12-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A157532",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CA",
            "license": "A157532",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Concord, CA

Sources for this page

Verify at the official NPI Registry.