Michael O'Connor, MD
NPI 1326188228 · Emergency Medicine Physician · San Francisco, CA
Michael O'Connor, MD is a Emergency Medicine Physician provider in San Francisco, CA (NPI 1326188228).
Provider details
- NPI number
- 1326188228
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A40941 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael O'Connor's NPI number?
- Michael O'Connor's National Provider Identifier (NPI) is 1326188228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael O'Connor's specialty?
- Michael O'Connor is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael O'Connor located?
- Michael O'Connor's practice location on file with NPPES is 845 Jackson St, San Francisco, CA 94133-4851.
- What is Michael O'Connor's phone number?
- The practice phone number listed in the NPPES registry for Michael O'Connor is (330) 493-4443.
- Is Michael O'Connor's NPI active?
- Yes — Michael O'Connor's NPI (1326188228) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.