Sydney Denning
NPI 1386504108 · Adult Development & Aging Psychologist · Clinton, MT
Sydney Denning is a Adult Development & Aging Psychologist provider in Clinton, MT (NPI 1386504108).
Provider details
- NPI number
- 1386504108
- Entity type
- Individual
- Primary specialty
- Adult Development & Aging PsychologistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
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
Under 1 yr in 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
- 2025-11-14
- Last updated
- 2025-11-14
- Certified
- 2025-11-14
Frequently asked questions
- What is Sydney Denning's NPI number?
- Sydney Denning's National Provider Identifier (NPI) is 1386504108, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sydney Denning's specialty?
- Sydney Denning is listed in the NPPES registry with a primary specialty of Adult Development & Aging Psychologist (Behavioral Health & Social Service Providers).
- Where is Sydney Denning located?
- Sydney Denning's practice location on file with NPPES is 10 Bucking Horse Ln, Clinton, MT 59825-9312.
- What is Sydney Denning's phone number?
- The practice phone number listed in the NPPES registry for Sydney Denning is (406) 531-2821.
- Is Sydney Denning's NPI active?
- Yes — Sydney Denning's NPI (1386504108) is active in the NPPES registry as of the last update on 2025-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.