Individual provider Active NPI

Margaret Maina, DNP, CRNP, FNP-BC

  • Nurse Practitioner
  • Walnut Creek, CA
National Provider Identifier
1881574820
Registry record updated Aug 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
95040723 Issued in CA
Practice address
1226 Rossmoor Pkwy
Walnut Creek, CA 94595-2538
Phone
(801) 215-9309
NPI assigned
Sep 2, 2025
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 12, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X 95040723 CA Primary
Family Nurse Practitioner 363LF0000X R236238 MD

Addresses

Primary practice location

1226 Rossmoor Pkwy
Walnut Creek, CA 94595-2538

Mailing address

12789 Castaic Lake Way
Rancho Cordova, CA 95742-8274
Phone (443) 889-4195

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MD, WA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20251013002825 MD Practitioner - Nurse Practitioner 0941797195 Reassigns benefits to 1 organization
I20260309003024 WA Practitioner - Nurse Practitioner 0941797195 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Endeavour Healthcare LLCGroup PAC ID 3072988815, 8 clinicians
Mso Washington IncGroup PAC ID 1850292681, 14 clinicians

Practice addresses (Care Compare)

1 Price Dr
Elkton, MD 21921-6731
Phone (443) 275-9164

33400 8TH Ave S
Suite 232
Federal Way, WA 98003-6382
Phone (253) 584-3577

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
R236238MDMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Endeavour Healthcare LLC CurrentSince Sep 2, 2025 Accepting new patients
Mso Washington, Inc. Nurse Practitioner CurrentSince Feb 1, 2026 Accepting new patients

Locations

4669 Falls Rd
Baltimore, MD 21209
Phone (410) 662-8606

1 Price Dr
Elkton, MD 21921
Phone (410) 398-6474

1881 Telegraph Rd
Rising Sun, MD 21911
Phone (302) 290-3543

6600 Ridge Rd
Rosedale, MD 21237
Phone (410) 574-4950

33400 8th Ave S
Ste 232
Federal Way, WA 98003

4903 108th St SW
Tacoma, WA 98499
Phone (253) 584-3577

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1756771200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786492800000",
    "number": "1881574820",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12789 CASTAIC LAKE WAY",
            "city": "RANCHO CORDOVA",
            "state": "CA",
            "postal_code": "957428274",
            "telephone_number": "443-889-4195"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1226 ROSSMOOR PKWY",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945952538",
            "telephone_number": "801-215-9309"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAINA",
        "first_name": "MARGARET",
        "credential": "DNP, CRNP, FNP-BC",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-09-02",
        "last_updated": "2026-08-12",
        "certification_date": "2026-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CA",
            "license": "95040723",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MD",
            "license": "R236238",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Walnut Creek, CA

Sources for this page

Verify at the official NPI Registry.