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Preston Duffield
NPI 1215865050 · Behavior Technician · Owings Mills, MD
Preston Duffield is a Behavior Technician provider in Owings Mills, MD (NPI 1215865050).
Provider details
- NPI number
- 1215865050
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(46/100 index)
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
500 Redland Ct Ste 102
Owings Mills, MD 21117-3265
Phone: (201) 979-1336
Street-level locationGet directions
Mailing address
175 Belgrove Dr
Kearny, NJ 07032-1507
Registry dates
- Enumerated
- 2026-05-12
- Last updated
- 2026-05-12
- Certified
- 2026-05-12
Frequently asked questions
- What is Preston Duffield's NPI number?
- Preston Duffield's National Provider Identifier (NPI) is 1215865050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Preston Duffield's specialty?
- Preston Duffield is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Preston Duffield located?
- Preston Duffield's practice location on file with NPPES is 500 Redland Ct Ste 102, Owings Mills, MD 21117-3265.
- What is Preston Duffield's phone number?
- The practice phone number listed in the NPPES registry for Preston Duffield is (201) 979-1336.
- Is Preston Duffield's NPI active?
- Yes — Preston Duffield's NPI (1215865050) is active in the NPPES registry as of the last update on 2026-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.