IndividualActive
Duk Hwan Yoon
NPI 1558941740 · Acupuncturist · Fontana, CA
Duk Hwan Yoon is a Acupuncturist provider in Fontana, CA (NPI 1558941740).
Provider details
- NPI number
- 1558941740
- Entity type
- Individual
- Primary specialty
- AcupuncturistOther Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- AC18455 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
Established profile(67/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
9773 Sierra Ave
Fontana, CA 92335-6716
Phone: (909) 829-2349
Street-level locationGet directions
Mailing address
6301 Honolulu Ave Unit 75
Tujunga, CA 91042-3468
Additional practice locations (1)
- 3000 W 6th St Ste 203Los Angeles, CA 90020-1564Phone: (213) 326-5151
Registry dates
- Enumerated
- 2021-04-12
- Last updated
- 2021-04-12
- Certified
- 2021-04-10
Frequently asked questions
- What is Duk Hwan Yoon's NPI number?
- Duk Hwan Yoon's National Provider Identifier (NPI) is 1558941740, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duk Hwan Yoon's specialty?
- Duk Hwan Yoon is listed in the NPPES registry with a primary specialty of Acupuncturist (Other Service Providers).
- Where is Duk Hwan Yoon located?
- Duk Hwan Yoon's practice location on file with NPPES is 9773 Sierra Ave, Fontana, CA 92335-6716.
- What is Duk Hwan Yoon's phone number?
- The practice phone number listed in the NPPES registry for Duk Hwan Yoon is (909) 829-2349.
- Is Duk Hwan Yoon's NPI active?
- Yes — Duk Hwan Yoon's NPI (1558941740) is active in the NPPES registry as of the last update on 2021-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.