Individual provider Active NPI

Michael Charles Christian Kessler

  • Clinical Social Worker
  • Santa Rosa, CA
National Provider Identifier
1790985042
Registry record updated May 11, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
LCSW73368 Issued in CA
Practice address
490 Mendocino Ave
Suite 202
Santa Rosa, CA 95401-8530
Phone
(707) 494-2974
Fax
(415) 565-4881
NPI assigned
Jul 24, 2007
Last updated
May 11, 2021By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 11, 2021

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

Specialties & licenses 5

Specialty (taxonomy)CodeLicenseStatePrimary
Counselor 101Y00000X ASW24005 CA
Counselor 101Y00000X
Mental Health Counselor 101YM0800X ASW 62549 CA
Social Worker 104100000X ASW 62549 CA
Clinical Social Worker 1041C0700X LCSW73368 CA Primary

Addresses

Primary practice location

490 Mendocino Ave
Suite 202
Santa Rosa, CA 95401-8530

Mailing address

2227 Capricorn Way Ste 207
Santa Rosa, CA 95407-5486
Phone (707) 565-5006

Other names 1

  • Mr. Micki Ann Williams Former name

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: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190123003242 CA Practitioner - Clinical Social Worker 7911244348 Reassigns benefits to 2 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
ASW24005CAMDCounselor
ASW 62549CAMDMental Health Counselor
LCSW73368CAMDClinical Social Worker
73368CAMDPharmacist

Practice roles

OrganizationSpecialtyStatusNew patients
Permanente Medical Group Inc Current Accepting new patients
Grow Healthcare Group PC Mental Health CurrentSince Sep 18, 2025 Accepting new patients
Permanente Medical Group, Inc CurrentSince Dec 31, 2024 Accepting new patients
Permanente Medical Group Inc CurrentSince Dec 31, 2024 Accepting new patients

Locations

750 Auburn Ravine Rd
Auburn, CA 95603
Phone (530) 823-6131

4753 W Shaw Ave
Ste 101
Fresno, CA 93722
Phone (559) 277-8738

900 N Douty St
Hanford, CA 93230
Phone (559) 587-9014

101 Monroe St
Petaluma, CA 94954
Phone (707) 763-4109

1150 Veterans Blvd
Redwood City, CA 94063
Phone (650) 299-2015

901 Nevin Ave
Richmond, CA 94801
Phone (510) 307-1500

930 W Main St
Ripon, CA 95366
Phone (209) 599-4221

501 J St
Sacramento, CA 95814
Phone (916) 497-3000

2200 Ofarrell St
San Francisco, CA 94115
Phone (415) 202-2000

99 Almaden Blvd
Ste 600
San Jose, CA 95113
Phone (408) 402-4385

710 Lawrence Expy
Santa Clara, CA 95051
Phone (408) 236-6400

2235 Mercury Way
Santa Rosa, CA 95407
Phone (707) 204-9996

5615 Scotts Valley Dr
Scotts Valley, CA 95066
Phone (831) 430-2700

7373 West Ln
Stockton, CA 95210
Phone (209) 476-2000

975 Sereno Dr
Vallejo, CA 94589
Phone (707) 651-1000

320 N Crawford St
Willows, CA 95988
Phone (530) 934-2834

66 W Flagler St
Ste 900
Miami, FL 33130
Phone (786) 244-7711

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1185235200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1620691200000",
    "number": "1790985042",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2227 CAPRICORN WAY STE 207",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954075486",
            "telephone_number": "707-565-5006",
            "fax_number": "707-565-4907"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "490 MENDOCINO AVE",
            "address_2": "SUITE 202",
            "city": "SANTA ROSA",
            "state": "CA",
            "postal_code": "954018530",
            "telephone_number": "707-494-2974",
            "fax_number": "415-565-4881"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KESSLER",
        "first_name": "MICHAEL",
        "middle_name": "CHARLES CHRISTIAN",
        "name_prefix": "Mr.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-07-24",
        "last_updated": "2021-05-11",
        "certification_date": "2021-05-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101Y00000X",
            "taxonomy_group": "",
            "desc": "Counselor",
            "state": "CA",
            "license": "ASW24005",
            "primary": false
        },
        {
            "code": "101Y00000X",
            "taxonomy_group": "",
            "desc": "Counselor",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "CA",
            "license": "ASW 62549",
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "CA",
            "license": "ASW 62549",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "LCSW73368",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MICKI",
            "last_name": "WILLIAMS",
            "middle_name": "ANN",
            "prefix": "MR.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Santa Rosa, CA

Sources for this page

Verify at the official NPI Registry.