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John Yoon
NPI 1639993934 · Chiropractor · Riverside, CA
John Yoon is a Chiropractor provider in Riverside, CA (NPI 1639993934).
Provider details
- NPI number
- 1639993934
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- DC22216 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Established profile(55/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
4193 Flat Rock Dr Ste 202
Riverside, CA 92505-7113
Phone: (310) 634-3199
Street-level locationGet directions
Mailing address
8071 Yorkshire Cir
La Palma, CA 90623-2026
Registry dates
- Enumerated
- 2024-11-13
- Last updated
- 2026-04-11
- Certified
- 2026-04-11
Frequently asked questions
- What is John Yoon's NPI number?
- John Yoon's National Provider Identifier (NPI) is 1639993934, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Yoon's specialty?
- John Yoon is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is John Yoon located?
- John Yoon's practice location on file with NPPES is 4193 Flat Rock Dr Ste 202, Riverside, CA 92505-7113.
- What is John Yoon's phone number?
- The practice phone number listed in the NPPES registry for John Yoon is (310) 634-3199.
- Is John Yoon's NPI active?
- Yes — John Yoon's NPI (1639993934) is active in the NPPES registry as of the last update on 2026-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.