Nicholas O'Connor, DC
NPI 1659827772 · Chiropractor · San Diego, CA
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas O'Connor, DC is a Chiropractor provider in San Diego, CA (NPI 1659827772).
Provider details
- NPI number
- 1659827772
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- DC
- Sex
- Male
- Sole proprietor
- Yes
- License
- DC33571 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2016-08-29
- Last updated
- 2016-08-29
Frequently asked questions
- What is Nicholas O'Connor's NPI number?
- Nicholas O'Connor's National Provider Identifier (NPI) is 1659827772, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas O'Connor's specialty?
- Nicholas O'Connor is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Nicholas O'Connor located?
- Nicholas O'Connor's practice location on file with NPPES is 5252 Balboa Ave, San Diego, CA 92117-6906.
- What is Nicholas O'Connor's phone number?
- The practice phone number listed in the NPPES registry for Nicholas O'Connor is (858) 384-6556.
- Does Nicholas O'Connor accept Medicare?
- Nicholas O'Connor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas O'Connor's NPI active?
- Yes — Nicholas O'Connor's NPI (1659827772) is active in the NPPES registry as of the last update on 2016-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.