NPIMap

Individual provider Active NPI

Trevor M Williams, M.D.

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Carmichael, CA
National Provider Identifier
1528294436
Registry record updated Jul 31, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianTaxonomy code 208G00000X
License
A87074 Issued in CA
Practice address
6511 Coyle Ave Ste 200
Carmichael, CA 95608-0306
Phone
(916) 536-3665
Fax
(916) 536-3593
NPI assigned
Jun 5, 2009
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 31, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X A87074 CA Primary
Surgery Physician 208600000X A87074 CA

Addresses

Primary practice location

6511 Coyle Ave Ste 200
Carmichael, CA 95608-0306

Mailing address

3400 Data Dr
Rancho Cordova, CA 95670-7956

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20090909000472 CA Practitioner - Thoracic SurgeryPractitioner - General Surgery 2264587575 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Thoracic Surgery
Education
University of California, San Francisco School of Medicine, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Dignity Health Medical FoundationGroup PAC ID 7810800661, 1,211 clinicians

Practice addresses (Care Compare)

6555 Coyle Ave
Carmichael, CA 95608-0302
Phone (916) 536-3540

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
99.64 of 100Reported as apm
Quality
86.27
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Upper gastrointestinal (GI) endoscopy for acid reflux24

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A87074CAMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Dignity Health Medical Foundation CurrentSince Aug 24, 2015 Accepting new patients
Dignity Health Medical Foundation Current Accepting new patients
Dignity Health Medical Foundation CurrentSince Aug 24, 2015 Accepting new patients
Dignity Health Medical Foundation Past Accepting new patients
Dignity Health Past Accepting new patients
Surgical Associates of Monterey Bay Medical Corporation Surgery Past Accepting new patients
Watsonville Hospital Corporation Past Accepting new patients
Dignity Health Past Accepting new patients

Locations

6555 Coyle Ave
Carmichael, CA 95608
Phone (916) 536-2500

6511 Coyle Ave
Ste 200
Carmichael, CA 95608
Phone (916) 863-8750

3400 Data Dr
Fl 1
Rancho Cordova, CA 95670
Phone (916) 379-2726

3400 Data Dr
Rncho Cordova, CA 95670
Phone (916) 379-2726

3000 Q St
Sacramento, CA 95816
Phone (916) 733-5701

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/4301/brand/1/csg/1/fhir/r4

Organizations & group practices 8

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 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": "1244160000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785456000000",
    "number": "1528294436",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3400 DATA DR",
            "city": "RANCHO CORDOVA",
            "state": "CA",
            "postal_code": "956707956"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6511 COYLE AVE STE 200",
            "city": "CARMICHAEL",
            "state": "CA",
            "postal_code": "956080306",
            "telephone_number": "916-536-3665",
            "fax_number": "916-536-3593"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "TREVOR",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-06-05",
        "last_updated": "2026-07-31",
        "certification_date": "2026-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "CA",
            "license": "A87074",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "A87074",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Carmichael, CA

Sources for this page

Verify at the official NPI Registry.