Individual provider Active NPI

Karen Tinder, NP

  • Family Nurse Practitioner
  • Walnut Creek, CA
National Provider Identifier
1225442080
Registry record updated Feb 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
488386 Issued in CA
Practice address
2637 Shadelands Dr
Walnut Creek, CA 94598-2512
Phone
(925) 945-6600
NPI assigned
Jun 19, 2014
Last updated
Feb 11, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 11, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X 488386 CA Primary

Addresses

Primary practice location

2637 Shadelands Dr
Walnut Creek, CA 94598-2512

Mailing address

2637 Shadelands Dr
Walnut Creek, CA 94598-2512
Phone (925) 952-2888

Other practice location 1

2425 East St
Suite 15
Concord, CA 94520
Phone (925) 682-9232

Other practice location 2

2700 Grant St Ste 200
Concord, CA 94520-2270
Phone (925) 674-2609

Other practice location 3

2425 East St
Suite 15
Concord, CA 94520
Phone (925) 682-9232

Other practice location 4

1450 Treat Blvd # 160
Walnut Creek, CA 94597-2168
Phone (925) 296-9000

Other practice location 5

3466 Mt Diablo Blvd Ste C104
Lafayette, CA 94549
Phone (925) 674-2609

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
I20190603000617 CA Practitioner - Nurse Practitioner 8325371503 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 1998
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
John Muir Physician NetworkGroup PAC ID 6608789813, 488 clinicians

Practice addresses (Care Compare)

3466 Mt Diablo Blvd
Suite C104
Lafayette, CA 94549-3952
Phone (925) 296-7490

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
488386CAMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Bass Medical Group Current Accepting new patients
Advanced Sleep Diagnostics, Inc. CurrentSince Jul 12, 2023 Accepting new patients
Bass Medical Group CurrentSince Jul 12, 2023 Accepting new patients
John Muir Physician Network CurrentSince Apr 19, 2019 Accepting new patients
Sutter Bay Medical Foundation Past Accepting new patients
Bass Medical Group Past Accepting new patients

Locations

1505 Saint Alphonsus Way
Alamo, CA 94507
Phone (925) 837-4225

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

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

3466 Mt Diablo Blvd
Ste C104
Lafayette, CA 94549
Phone (925) 284-4442

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

1450 Treat Blvd
#160
Walnut Creek, CA 94597
Phone (925) 296-9000

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

2637 Shadelands Dr
Walnut Creek, CA 94598
Phone (925) 627-3424

Interoperability endpoints

  • Direct secure messaging: ktinder92041@ehr.johnmuirhealth.com

Organizations & group practices 6

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 5

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": "1403136000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1739232000000",
    "number": "1225442080",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2637 SHADELANDS DR",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982512",
            "telephone_number": "925-952-2888"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2637 SHADELANDS DR",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945982512",
            "telephone_number": "925-945-6600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2425 East St",
            "address_2": "Suite 15",
            "address_purpose": "LOCATION",
            "city": "Concord",
            "state": "CA",
            "postal_code": "94520",
            "country_code": "US",
            "telephone_number": "925-682-9232",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2700 Grant St Ste 200",
            "address_purpose": "LOCATION",
            "city": "Concord",
            "state": "CA",
            "postal_code": "945202270",
            "country_code": "US",
            "telephone_number": "925-674-2609",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2425 East St",
            "address_2": "Suite 15",
            "address_purpose": "LOCATION",
            "city": "Concord",
            "state": "CA",
            "postal_code": "94520",
            "country_code": "US",
            "telephone_number": "925-682-9232",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1450 Treat Blvd # 160",
            "address_purpose": "LOCATION",
            "city": "Walnut Creek",
            "state": "CA",
            "postal_code": "945972168",
            "country_code": "US",
            "telephone_number": "925-296-9000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3466 Mt Diablo Blvd Ste C104",
            "address_purpose": "LOCATION",
            "city": "Lafayette",
            "state": "CA",
            "postal_code": "94549",
            "country_code": "US",
            "telephone_number": "925-674-2609",
            "fax_number": "925-674-2211",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TINDER",
        "first_name": "KAREN",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-06-19",
        "last_updated": "2025-02-11",
        "certification_date": "2025-02-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "488386",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Walnut Creek, CA

Sources for this page

Verify at the official NPI Registry.