IndividualActive
Dawn Holderfield
NPI 1023531779 · Behavior Analyst · Union City, CA
Dawn Holderfield is a Behavior Analyst provider in Union City, CA (NPI 1023531779).
Provider details
- NPI number
- 1023531779
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(63/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
33635 9th St
Appt. 1
Union City, CA 94587
Phone: (510) 589-0535
Street-level locationGet directions
Mailing address
33635 9th St # St1
Union City, CA 94587-2316
Registry dates
- Enumerated
- 2017-07-24
- Last updated
- 2017-07-24
Frequently asked questions
- What is Dawn Holderfield's NPI number?
- Dawn Holderfield's National Provider Identifier (NPI) is 1023531779, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dawn Holderfield's specialty?
- Dawn Holderfield is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Dawn Holderfield located?
- Dawn Holderfield's practice location on file with NPPES is 33635 9th St, Union City, CA 94587.
- What is Dawn Holderfield's phone number?
- The practice phone number listed in the NPPES registry for Dawn Holderfield is (510) 589-0535.
- Is Dawn Holderfield's NPI active?
- Yes — Dawn Holderfield's NPI (1023531779) is active in the NPPES registry as of the last update on 2017-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.