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Gary Loos, D.C.
NPI 1659441053 · Chiropractor · San Marcos, CA
Gary Loos, D.C. is a Chiropractor provider in San Marcos, CA (NPI 1659441053).
Provider details
- NPI number
- 1659441053
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Male
- Sole proprietor
- No
- License
- DC19521 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(90/100 index)
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
1645 S Rancho Santa Fe Rd
Ste 102
San Marcos, CA 92078-5188
Phone: (760) 290-3611
Fax: (760) 290-3719
Street-level locationGet directions
Mailing address
Po Box 1176
Cardiff, CA 92007-7176
Registry dates
- Enumerated
- 2006-11-09
- Last updated
- 2019-09-24
Frequently asked questions
- What is Gary Loos's NPI number?
- Gary Loos's National Provider Identifier (NPI) is 1659441053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Loos's specialty?
- Gary Loos is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is Gary Loos located?
- Gary Loos's practice location on file with NPPES is 1645 S Rancho Santa Fe Rd, San Marcos, CA 92078-5188.
- What is Gary Loos's phone number?
- The practice phone number listed in the NPPES registry for Gary Loos is (760) 290-3611.
- Is Gary Loos's NPI active?
- Yes — Gary Loos's NPI (1659441053) is active in the NPPES registry as of the last update on 2019-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.