Jonathan Duff
NPI 1770479313 · Behavior Analyst · Spokane Valley, WA
Jonathan Duff is a Behavior Analyst provider in Spokane Valley, WA (NPI 1770479313).
Provider details
- NPI number
- 1770479313
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Behavior Analyst103K00000X
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
1 yr 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
- 2025-06-17
- Last updated
- 2025-06-17
- Certified
- 2025-06-17
Frequently asked questions
- What is Jonathan Duff's NPI number?
- Jonathan Duff's National Provider Identifier (NPI) is 1770479313, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Duff's specialty?
- Jonathan Duff is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Jonathan Duff located?
- Jonathan Duff's practice location on file with NPPES is 1414 N Vercler Rd Ste 2, Spokane Valley, WA 99216-1092.
- What is Jonathan Duff's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Duff is (506) 991-7885.
- Is Jonathan Duff's NPI active?
- Yes — Jonathan Duff's NPI (1770479313) is active in the NPPES registry as of the last update on 2025-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.