Helen Hwang
NPI 1649527292 · Addiction (Substance Use Disorder) Counselor · Fairfield, CA
Helen Hwang is a Addiction (Substance Use Disorder) Counselor provider in Fairfield, CA (NPI 1649527292).
Provider details
- NPI number
- 1649527292
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2012-08-13
- Last updated
- 2012-08-13
Frequently asked questions
- What is Helen Hwang's NPI number?
- Helen Hwang's National Provider Identifier (NPI) is 1649527292, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Hwang's specialty?
- Helen Hwang is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Helen Hwang located?
- Helen Hwang's practice location on file with NPPES is 1735 Enterprise Dr, Fairfield, CA 94533-6822.
- What is Helen Hwang's phone number?
- The practice phone number listed in the NPPES registry for Helen Hwang is (707) 425-1799.
- Is Helen Hwang's NPI active?
- Yes — Helen Hwang's NPI (1649527292) is active in the NPPES registry as of the last update on 2012-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.