npidata.org Sign in
Products
Provider RadarWatch an area and specialty — weekly alerts on new cliniciansPractice RadarWeekly alerts when new organisations register nearbySpecialtiesEvery NUCC taxonomy, with counts by state and cityStatesProvider counts and breakdowns for all 50 statesPhysician listsMDs and DOs with addresses and phone numbersNP listsNurse practitioners, the fastest-growing groupAPIJSON, delta feed, free tier
Use cases
Healthcare sales prospectingPhysician recruiting and locum staffingMedical device sales territory planningCredentialing and provider verificationHealthcare marketing lists and audience buildingPharmaceutical sales and prescriber targeting
Account
Start freeThree radars and an export a month Sign in Pricing
Explore
Data Labs API
About
About usTermsPrivacyContact us

Search › California › Physician Assistant

Dennis O'Connell, PA-C

NPI 1093984452 · on the registry since 2008

Practice

Address
250 Bon Air Rd
Greenbrae, CA 94904
Phone
(415) 925-7203
Organisation at this address
County Of Marin
Dana Forman, Inc.
Susan Nguyen Md Inc
Marin Community Clinic
Marin General Hospital
Inferred from a shared address, not stated in the registry.
Clinicians at this address
389

Additional practice sites

  • 2351 Clay St, San Francisco, CA

Registry record

Primary taxonomy
Physician Assistant
363A00000X
Licence states on file
CA
From the registry's licence fields, which are often incomplete.
Sex
Male
Record last updated
2025-10-24

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California