Active NPI
Dennis Eugene O'Connell, PA-C
- Physician Assistant
- Greenbrae, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- PA 19228
- Practice address
- 250 Bon Air Rd
Greenbrae, CA 94904-1702 - Phone
- (415) 925-7203
- NPI assigned
- Feb 29, 2008
- Last updated
- Oct 24, 2025
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
Enrollment records 1
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
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 100
- Quality
- 91.91
- Improvement activities
- 40
- Cost
- 79.27
Merit-based Incentive Payment System (MIPS)
- Final score
- 96.69 of 100
- Quality
- 90
- Improvement activities
- 40
- Cost
- 78.43
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PA 19228 | CA | MD | Physician Assistant |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Cep America - California | Current | Accepting new patients | |
| Sutter Bay Medical Foundation | Current | Accepting new patients | |
| Cep America-California | Current | Accepting new patients | |
| Cep America - California | Current | 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
- doconnell104293@direct-ucsfmedicalcenter.org
- 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.
-
dba Palo Alto Medial Foundation
- Multi-Specialty Clinic/Center
- Palo Alto, CA
- NPI 1013950807
-
- Emergency Medicine Physician
- San Francisco, CA
- NPI 1134110661
-
- Emergency Medicine Physician
- Murrieta, CA
- NPI 1588552848
-
dba Sutter East Bay Medical Foundation
- Multi-Specialty Clinic/Center
- Orinda, CA
- NPI 1366898538
-
dba Anaheim Global Medical Center
- General Acute Care Hospital
- Anaheim, CA
- NPI 1790778488
-
- Clinical Medical Laboratory
- Berkeley, CA
- NPI 1831381623
-
- Emergency Medicine Physician
- Clovis, NM
- NPI 1891005534
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
- Nona M Cunningham MD Inc
- Marisela Marisa Noorhasan, M.D.
- North Bay Neurologic Medical Associates, Inc.
- Northbay Surgery Center
- Novacare Outpatient Rehabilitation of California Inc (NovaCare Outpatient Rehabilitation - Greenbrae)
- Michael Jerome O'Neill, LCSW
- Douglas Obrien
- Lauren Oemcke, RN, CDCES
- Humphrey Ogg
- Cassandra Ohrstrom, AMFT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 24, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.