Individual provider Active NPI

Dennis Eugene O'Connell, PA-C

  • Physician Assistant
  • Greenbrae, CA
National Provider Identifier
1093984452
Registry record updated Oct 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA 19228 Issued in CA
Practice address
250 Bon Air Rd
Greenbrae, CA 94904-1702
Phone
(415) 925-7203
NPI assigned
Feb 29, 2008
Last updated
Oct 24, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 24, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X PA 19228 CA Primary

Addresses

Primary practice location

250 Bon Air Rd
Greenbrae, CA 94904-1702

Mailing address

PO Box 276950
Sacramento, CA 95827-6950

Other practice location 1

2351 Clay St
San Francisco, CA 94115-1931
Phone (415) 858-5244

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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20080508000706 CA Practitioner - Physician Assistant 5698854172 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2007
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)

3838 California St
San Francisco, CA 94118-1506

55 2ND St
San Francisco, CA 94105-3491
Phone (415) 600-6990

Merit-based Incentive Payment System (MIPS)

Final score
97.16 of 100Reported as group
Quality
91.91
Improvement activities
40
Cost
79.27

Merit-based Incentive Payment System (MIPS)

Final score
96.69 of 100Reported as group
Quality
90
Improvement activities
40
Cost
78.43

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA 19228CAMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America - California CurrentSince Apr 1, 2008 Accepting new patients
Sutter Bay Medical Foundation CurrentSince Oct 15, 2025 Accepting new patients
Cep America-California CurrentSince Apr 1, 2008 Accepting new patients
Cep America - California CurrentSince Jan 15, 2024 Accepting new patients
Anaheim Global Medical Center, Inc Past Accepting new patients
Sutter East Bay Medical Foundation Past Accepting new patients
Valley Emergency Physicians New Mexico PC Past Accepting new patients

Locations

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

2309 Antonio Ave
Camarillo, CA 93010
Phone (805) 389-5655

751 Medical Center Ct
Chula Vista, CA 91911
Phone (619) 482-3639

2755 Herndon Ave
Clovis, CA 93611
Phone (559) 323-4000

800 E Washington Blvd
Crescent City, CA 95531
Phone (707) 464-8511

2100 Powell St
Ste 400
Emeryville, CA 94608
Phone (510) 350-2638

1650 Creekside Dr
Folsom, CA 95630
Phone (916) 983-7400

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

250 Bon Air Rd
Kentfield, CA 94904
Phone (415) 464-1350

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

1250 E Almond Ave
Madera, CA 93637
Phone (559) 675-5501

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 900-3125

600 Coffee Rd
Modesto, CA 95355
Phone (209) 550-4755

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

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

4445 Magnolia Ave
Riverside, CA 92501
Phone (800) 498-7156

15031 Rinaldi St
San Fernando, CA 91345
Phone (818) 365-8051

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

1555 Soquel Dr
Santa Cruz, CA 95065
Phone (831) 462-7700

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

1911 Johnson Ave
Sn Luis Obisp, CA 93401
Phone (805) 542-6633

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

Interoperability endpoints

  • Direct secure messaging: doconnell104293@direct-ucsfmedicalcenter.org
  • Direct secure messaging: doconnell41347@hisp.ehr.sutterhealth.org

Organizations & group practices 11

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": "1204243200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761264000000",
    "number": "1093984452",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 276950",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958276950"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "250 BON AIR RD",
            "city": "GREENBRAE",
            "state": "CA",
            "postal_code": "949041702",
            "telephone_number": "415-925-7203"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2351 Clay St",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941151931",
            "country_code": "US",
            "telephone_number": "415-858-5244",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'CONNELL",
        "first_name": "DENNIS",
        "middle_name": "EUGENE",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-02-29",
        "last_updated": "2025-10-24",
        "certification_date": "2025-10-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "PA 19228",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Greenbrae, CA

Sources for this page

Verify at the official NPI Registry.