Individual provider Active NPI

Janine E Senior, MD

  • Obstetrics & Gynecology Physician
  • Walnut Creek, CA
National Provider Identifier
1154321503
Registry record updated Feb 27, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
G74576 Issued in CA
Practice address
112 La Casa Via Ste 300
Walnut Creek, CA 94598-3059
Phone
(925) 239-0012
Fax
(925) 239-0011
NPI assigned
Jul 28, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 27, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Specialist 174400000X G74576 CA
Obstetrics & Gynecology Physician 207V00000X G74576 CA Primary

Addresses

Primary practice location

112 La Casa Via Ste 300
Walnut Creek, CA 94598-3059

Mailing address

112 La Casa Via Ste 300
Walnut Creek, CA 94598-3059
Phone (925) 239-0012

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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20070529000504 CA Practitioner - Obstetrics/Gynecology 4385646512 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
University of Cincinnati College of Medicine, 1988
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Bass Medical GroupGroup PAC ID 9032111281, 292 clinicians

Practice addresses (Care Compare)

1505 Saint Alphonsus Way
Alamo, CA 94507-1570
Phone (925) 932-6330

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Bass Medical Group Obstetrics & Gynecology Current Accepting new patients
Bass Medical Group CurrentSince Jun 1, 2018 Accepting new patients
Bass Medical Group CurrentSince Jun 1, 2018 Accepting new patients
John Muir Health Past Accepting new patients
John Muir Health Past Accepting new patients
San Ramon Regional Medical Center, LLC Past Accepting new patients
Bass Medical Group Specialist Past Accepting new patients
OB-GYN Specialists, Inc. Specialist Past Accepting new patients
Bass Medical Group Past Accepting new patients

Locations

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

2121 Ygnacio Valley Rd
Ste E206
Walnut Creek, CA 94598
Phone (925) 732-0390

365 Lennon Ln
Ste 250
Walnut Creek, CA 94598
Phone (925) 627-3424

112 La Casa Via
Ste 300
Walnut Creek, CA 94598
Phone (925) 239-0012

2121 Ygnacio Valley Rd
Ste E101
Walnut Creek, CA 94598
Phone (925) 945-0246

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: jsenior11801@ehr.johnmuirhealth.com
  • FHIR API: https://fhir4.healow.com/fhir/r4/IBDGCA

Organizations & group practices 9

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": "1122508800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1740614400000",
    "number": "1154321503",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "112 LA CASA VIA STE 300",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945983059",
            "telephone_number": "925-239-0012",
            "fax_number": "925-239-0011"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "112 LA CASA VIA STE 300",
            "city": "WALNUT CREEK",
            "state": "CA",
            "postal_code": "945983059",
            "telephone_number": "925-239-0012",
            "fax_number": "925-239-0011"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SENIOR",
        "first_name": "JANINE",
        "middle_name": "E",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-07-28",
        "last_updated": "2025-02-27",
        "certification_date": "2025-02-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "CA",
            "license": "G74576",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "G74576",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Walnut Creek, CA

Sources for this page

Verify at the official NPI Registry.