What is Charles Brennan's NPI number?

Charles Brennan's National Provider Identifier (NPI) is 1568013407, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Charles Brennan's specialty?

Charles Brennan is listed in the NPPES registry with a primary specialty of Sports Physician Chiropractor (Chiropractic Providers).

Where is Charles Brennan located?

Charles Brennan's practice location on file with NPPES is 5700 J St Ste a, Sacramento, CA 95819-3956.

What is Charles Brennan's phone number?

The practice phone number listed in the NPPES registry for Charles Brennan is (707) 208-0646.

Is Charles Brennan's NPI active?

Yes — Charles Brennan's NPI (1568013407) is active in the NPPES registry as of the last update on 2026-01-05.

IndividualActive

Charles Brennan, DC

NPI 1568013407 · Sports Physician Chiropractor · Sacramento, CA

Charles Brennan, DC is a Sports Physician Chiropractor provider in Sacramento, CA (NPI 1568013407).

Provider details

NPI number: 1568013407
Entity type: Individual
Primary specialty: Sports Physician ChiropractorChiropractic Providers
Credential: DC
Sex: Male
Sole proprietor: No
License: 34642 (CA)

Specialties & taxonomies

Sports Physician ChiropractorPrimary111NS0005XLicense 34642 (CA)
Chiropractic Providers

Profile Score

Established profile(65/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
6 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

5700 J St Ste a

Sacramento, CA 95819-3956

Phone: (707) 208-0646

Street-level locationGet directions

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Mailing address