Individual provider Active NPI

Elisabeth Lucas Day, MD

  • Obstetrics & Gynecology Physician
  • Watsonville, CA
National Provider Identifier
1811494495
Registry record updated Dec 5, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
A165696 Issued in CA
Practice address
204 E Beach St
Watsonville, CA 95076-4809
Phone
(831) 728-0222
Fax
(831) 707-2777
NPI assigned
Apr 10, 2018
Last updated
Dec 5, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 5, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X A165696 CA Primary

Addresses

Primary practice location

204 E Beach St
Watsonville, CA 95076-4809

Mailing address

204 E Beach St
Watsonville, CA 95076-4809
Phone (831) 728-0222

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
I20220805001209 CA Practitioner - Obstetrics/Gynecology 0547642605 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Dignity Health Medical FoundationGroup PAC ID 7810800661, 1,211 clinicians
Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

Practice addresses (Care Compare)

1505 Soquel Dr
Suite 1
Santa Cruz, CA 95065-1716
Phone (831) 465-5440

2907 Chanticleer Ave
Santa Cruz, CA 95065-1815
Phone (831) 477-2375

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of the uterus1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A165696CAMDObstetrics & Gynecology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Sutter Bay Medical Foundation CurrentSince Aug 8, 2022 Accepting new patients
Salud Para la Gente CurrentSince Nov 1, 2025 Accepting new patients
Dignity Health Medical Foundation CurrentSince Dec 8, 2025 Accepting new patients
Sutter Bay Medical Foundation CurrentSince Aug 8, 2022 Accepting new patients
Salud Para la Gente CurrentSince Nov 1, 2025 Accepting new patients
Dignity Health Medical Foundation Current Accepting new patients
Dignity Health Medical Foundation CurrentSince Dec 8, 2025 Accepting new patients
Salud Para la Gente Past Accepting new patients

Locations

18400 US Highway 18
Apple Valley, CA 92307
Phone (760) 810-7590

7600 Old Dominion Ct
#1
Aptos, CA 95003
Phone (831) 458-6200

1950 University Ave
Ste 160
East Palo Alto, CA 94303
Phone (650) 317-8100

160 Green Valley Rd
Freedom, CA 95019
Phone (831) 763-9700

3200 Kearney St
Fremont, CA 94538
Phone (510) 498-2800

1189 E Herndon Ave
Ste 103
Fresno, CA 93720
Phone (559) 450-7777

325 Distel Cir
Los Altos, CA 94022
Phone (510) 204-3977

370 Distel Cir
Los Altos, CA 94022
Phone (650) 254-5200

101 Rowland Way
Ste 220
Novato, CA 94945
Phone (415) 878-7200

795 El Camino Real
Palo Alto, CA 94301
Phone (650) 324-1832

1555 East St
Ste 200
Redding, CA 96001
Phone (530) 229-0911

151 N Sunrise Ave
Ste 1205
Roseville, CA 95661
Phone (916) 780-0110

3838 California St
Rm 410
San Francisco, CA 94118
Phone (415) 751-1847

123 S San Mateo Dr
San Mateo, CA 94401
Phone (650) 343-4200

1505 Soquel Dr
Ste 1
Santa Cruz, CA 95065
Phone (831) 462-3800

1595 Soquel Dr
Ste 400
Santa Cruz, CA 95065
Phone (831) 475-1111

2907 Chanticleer Ave
Santa Cruz, CA 95065
Phone (831) 477-2325

3883 Airway Dr
Ste 220
Santa Rosa, CA 95403
Phone (707) 521-7750

10200 Trinity Pkwy
Ste 101
Stockton, CA 95219
Phone (209) 323-3488

195 Aviation Way
Ste 200
Watsonville, CA 95076

204 E Beach St
Watsonville, CA 95076
Phone (831) 763-3413

45 Nielson St
Watsonville, CA 95076
Phone (831) 761-1588

550 S Green Valley Rd
Watsonville, CA 95076
Phone (831) 458-5865

Interoperability endpoints

  • Direct secure messaging: eday625485@hisp.ehr.sutterhealth.org

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 1

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": "1523318400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764892800000",
    "number": "1811494495",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "204 E BEACH ST",
            "city": "WATSONVILLE",
            "state": "CA",
            "postal_code": "950764809",
            "telephone_number": "831-728-0222",
            "fax_number": "831-707-2777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "204 E BEACH ST",
            "city": "WATSONVILLE",
            "state": "CA",
            "postal_code": "950764809",
            "telephone_number": "831-728-0222",
            "fax_number": "831-707-2777"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DAY",
        "first_name": "ELISABETH",
        "middle_name": "LUCAS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-04-10",
        "last_updated": "2025-12-05",
        "certification_date": "2025-12-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "A165696",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Watsonville, CA

Sources for this page

Verify at the official NPI Registry.