Individual provider Active NPI

Grace McGuinness, NP

  • Nurse Practitioner
  • Walnut Creek, CA
National Provider Identifier
1447789433
Registry record updated Jul 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
NP95006172 Issued in CA
Practice address
177 La Casa Via Ste 170
Walnut Creek, CA 94598-6101
Phone
(925) 692-5650
NPI assigned
Jun 5, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 9, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X NP95006172 CA Primary

Addresses

Primary practice location

177 La Casa Via Ste 170
Walnut Creek, CA 94598-6101

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20171129001751 CA Practitioner - Nurse Practitioner 1355611310 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2016
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)

400 Taylor LBVD
Suite 101
Pleasant Hill, CA 94523-2147
Phone (925) 677-5041

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
90.32 of 100Reported as group
Quality
89.54
Promoting interoperability
100
Improvement activities
40
Cost
74.34

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
NP95006172CAMDNurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
John Muir Physician Network CurrentSince Sep 7, 2022 Accepting new patients

Locations

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

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

400 Taylor Blvd
Ste 101
Pleasant Hill, CA 94523
Phone (925) 465-8400

1450 Treat Blvd
Ste 300
Walnut Creek, CA 94597

177 La Casa Via
Ste 170
Walnut Creek, CA 94598
Phone (925) 692-5650

Interoperability endpoints

  • Direct secure messaging: gmcguinness141641@ehr.johnmuirhealth.com

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": "1496620800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752019200000",
    "number": "1447789433",
    "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": "177 LA CASA VIA STE 170",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945986101",
            "telephone_number": "925-692-5650"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCGUINNESS",
        "first_name": "GRACE",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-06-05",
        "last_updated": "2025-07-09",
        "certification_date": "2025-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "NP95006172",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Walnut Creek, CA

Sources for this page

Verify at the official NPI Registry.