Individual provider Active NPI

Stephen Clay Williams, M.D.

  • Psychiatry Physician
  • Santa Rosa, CA
National Provider Identifier
1184778284
Registry record updated Jul 9, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
A55291 Issued in CA
Practice address
480 Tesconi Cir Ste B
Santa Rosa, CA 95401-4691
Phone
(707) 206-7268
Fax
(707) 206-7254
NPI assigned
Jan 23, 2007
Last updated
Jul 9, 2021By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 9, 2021

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X 35.129375 OH
Psychiatry Physician 2084P0800X A55291 CA Primary

Addresses

Primary practice location

480 Tesconi Cir Ste B
Santa Rosa, CA 95401-4691

Mailing address

480 Tesconi Cir Ste B
Santa Rosa, CA 95401-4691
Phone (707) 206-7268

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, IN, OH3 enrollments
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 3

Enrollment IDStateProvider typePAC IDDetails
I20050418000622 CA Practitioner - Psychiatry 2961440391 Reassigns benefits to 3 organizations
I20130911000643 IN Practitioner - Psychiatry 2961440391 Reassigns benefits to 5 organizations
I20160919001921 OH Practitioner - Psychiatry 2961440391 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Psychiatry
Education
Rush Medical College of Rush University, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Extended Care Specialists, IncGroup PAC ID 2466407713, 295 clinicians

Practice addresses (Care Compare)

3958 Brown Park Dr
Suite D
Hilliard, OH 43026-1160
Phone (260) 483-9081

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A55291CAMDPsychiatry Physician

Practice roles

OrganizationSpecialtyStatusNew patients
State of Ohio Office of Budget and Management State Accounting CurrentSince Aug 24, 2016 Accepting new patients
Eventus Ecs, Inc CurrentSince May 1, 2025 Accepting new patients
Oglethorpe of Middlepoint LLC CurrentSince Sep 1, 2017 Accepting new patients
Camarena Health CurrentSince Jan 11, 2021 Accepting new patients
Extended Care Specialists, Inc Psychiatry CurrentSince May 1, 2025 Accepting new patients
Eventus Wholehealth Midwest Inc CurrentSince Nov 4, 2025 Accepting new patients
Eventus Ecs - Kentucky, PLLC CurrentSince Nov 1, 2025 Accepting new patients
Santa Barbara County County Auditor Current Accepting new patients
Siyan Clinical Corporation Psychiatry CurrentSince Jun 9, 2021 Accepting new patients
Eventus WH Midwest Care, LLC CurrentSince Oct 1, 2025 Accepting new patients
Santa Barbara County Auditor CurrentSince Dec 3, 2024 Accepting new patients
SB Cty Dept of Behavioral Wellness CurrentSince Dec 3, 2024 Accepting new patients
State of Ohio Office of Budget and Management State Accounting CurrentSince Aug 24, 2016 Accepting new patients
Camarena Health CurrentSince Jan 11, 2021 Accepting new patients
Eventus Ecs - Ohio LLC Psychiatry CurrentSince Oct 1, 2025 Accepting new patients
Beckett Springs, LLC Psychiatry Past Accepting new patients
Family Services, Inc. Psychiatry PastSince Apr 1, 2019 Accepting new patients
Hudson Valley Mental Health, Inc. PastSince Jan 1, 2014 Accepting new patients
Paras Harshawat, MD Psychiatry Past Accepting new patients

Locations

344 E 6th St
Madera, CA 93638
Phone (559) 664-4158

49169 Road 426
Oakhurst, CA 93644
Phone (559) 642-6724

429 N San Antonio Rd
Santa Barbara, CA 93110
Phone (805) 884-1600

4444 Calle Real
Santa Barbara, CA 93110
Phone (805) 681-5190

1287 Fulton Rd
Santa Rosa, CA 95401
Phone (707) 543-2031

480 Tesconi Cir
Ste B
Santa Rosa, CA 95401
Phone (707) 206-7268

7074 Grove Rd
Spring Hill, FL 34609
Phone (352) 540-9335

2100 Midway St
Columbus, IN 47201
Phone 3178181240225

150 W Market St
Ste 400
Indianapolis, IN 46204

3815 River Crossing Pkwy
Ste 100
Indianapolis, IN 46240
Phone (317) 566-2035

8398 Mississippi St
Fl 2
Merrillville, IN 46410

1101 Summit Rd
Cincinnati, OH 45237
Phone (513) 948-3600

30 E Broad St
Fl 11
Columbus, OH 43215
Phone (614) 466-9930

4400 Easton Cmns
Ste 125
Columbus, OH 43219
Phone (855) 679-2366

3958 Brown Park Dr
Ste D
Hilliard, OH 43026
Phone (512) 792-4402

17872 Lincoln Hwy
Middle Point, OH 45863
Phone (419) 495-6515

Organizations & group practices 19

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.

View all 19

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1169510400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1625788800000",
    "number": "1184778284",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "480 TESCONI CIR STE B",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954014691",
            "telephone_number": "707-206-7268",
            "fax_number": "707-206-7254"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "480 TESCONI CIR STE B",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954014691",
            "telephone_number": "707-206-7268",
            "fax_number": "707-206-7254"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "STEPHEN",
        "middle_name": "CLAY",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-01-23",
        "last_updated": "2021-07-09",
        "certification_date": "2021-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "OH",
            "license": "35.129375",
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A55291",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Santa Rosa, CA

Sources for this page

Verify at the official NPI Registry.