Individual provider Active NPI

Arnold A Weekes, MD

  • Anesthesiology Physician
  • Antioch, CA
National Provider Identifier
1023057833
Registry record updated Jul 31, 2019
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anesthesiology PhysicianTaxonomy code 207L00000X
License
775521 Issued in CA
Practice address
4053 Lone Tree Way Ste 201
Antioch, CA 94531-6210
Phone
(925) 756-3400
Fax
(925) 756-3410
NPI assigned
Jun 6, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 31, 2019

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anesthesiology Physician 207L00000X 775521 CA Primary

Addresses

Primary practice location

4053 Lone Tree Way Ste 201
Antioch, CA 94531-6210

Mailing address

325 Distel Cir
Los Altos, CA 94022-1408
Phone (925) 756-3400

Other practice location 1

3901 Lone Tree Way Ste 201
Antioch, CA 94509-6200
Phone (925) 756-3400

Other identifiers 3

IdentifierTypeStateIssuer
A88042OtherCASTATE MEDICAL LICENSE
RHC00166977OtherCAFLOUROSCOPY CERTIFCATION
1023057833MedicaidCA

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
I20080415000512 CA Practitioner - AnesthesiologyPractitioner - Interventional Pain Management 8527150101 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
AnesthesiologyAlso: Interventional Pain Management
Education
Temple University School of Medicine, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Sutter Bay Medical FoundationGroup PAC ID 4284538778, 3,783 clinicians

Practice addresses (Care Compare)

2900 Chanticleer Ave
Santa Cruz, CA 95065-1816

3200 Kearney St
Fremont, CA 94538-2299
Phone (510) 490-1222

3901 Lone Tree Way
Antioch, CA 94509-6200
Phone (650) 845-7649

Hospital & facility affiliations

  • Sutter Delta Medical Center Hospital, Antioch, CA, CCN 050523

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
775521CAMDAnesthesiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Core Anesthesia Services PC Anesthesiology CurrentSince Jun 27, 2025 Accepting new patients
Sutter Bay Medical Foundation CurrentSince Aug 1, 2017 Accepting new patients
Sutter Bay Medical Foundation CurrentSince Aug 1, 2017 Accepting new patients
Core Anesthesia Provider Services PC Anesthesiology CurrentSince Jul 1, 2025 Accepting new patients
Sutter Bay Medical Foundation Current Accepting new patients
Comprehensive Pain and Anesthesia Services, PA Anesthesiology Past Accepting new patients
Redwood Anesthesia Services, a Medical Corporation Anesthesiology Past Accepting new patients

Locations

3901 Lone Tree Way
Antioch, CA 94509
Phone (925) 779-7200

4053 Lone Tree Way
Ste 101
Antioch, CA 94531
Phone (925) 756-3400

4053 Lone Tree Way
Ste 201
Antioch, CA 94531
Phone (925) 756-3400

3901 Lone Tree Way
Ste 201
Antioch, CA 94509
Phone (925) 756-3400

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

3687 Mt Diablo Blvd
Ste 200
Lafayette, CA 94549
Phone (510) 204-6660

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

12 Camino Encinas
Orinda, CA 94563
Phone (510) 204-8180

795 El Camino Real
#1112
Palo Alto, CA 94301

36 W Yokuts Ave
Ste 3
Stockton, CA 95207
Phone (209) 952-1189

Interoperability endpoints

  • Direct secure messaging: aweekes59850@hisp.ehr.sutterhealth.org

Organizations & group practices 7

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 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": "1149552000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1564531200000",
    "number": "1023057833",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "325 DISTEL CIR",
            "city": "LOS ALTOS",
            "state": "CA",
            "postal_code": "940221408",
            "telephone_number": "925-756-3400",
            "fax_number": "925-756-3410"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4053 LONE TREE WAY STE 201",
            "city": "ANTIOCH",
            "state": "CA",
            "postal_code": "945316210",
            "telephone_number": "925-756-3400",
            "fax_number": "925-756-3410"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3901 Lone Tree Way Ste 201",
            "address_purpose": "LOCATION",
            "city": "Antioch",
            "state": "CA",
            "postal_code": "945096200",
            "country_code": "US",
            "telephone_number": "925-756-3400",
            "fax_number": "925-754-6387",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WEEKES",
        "first_name": "ARNOLD",
        "middle_name": "A",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-06",
        "last_updated": "2019-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "775521",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE MEDICAL LICENSE",
            "identifier": "A88042",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "FLOUROSCOPY CERTIFCATION",
            "identifier": "RHC00166977",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1023057833",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Antioch, CA

Sources for this page

Verify at the official NPI Registry.