Steven Diehl, PHD
NPI 1215988175 · Psychologist · Middletown, RI
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Diehl, PHD is a Psychologist provider in Middletown, RI (NPI 1215988175).
Provider details
- NPI number
- 1215988175
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- PS00851 (RI)
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
20 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2006-05-15
- Last updated
- 2008-07-22
Frequently asked questions
- What is Steven Diehl's NPI number?
- Steven Diehl's National Provider Identifier (NPI) is 1215988175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Diehl's specialty?
- Steven Diehl is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Steven Diehl located?
- Steven Diehl's practice location on file with NPPES is 850 Aquidneck Ave, Middletown, RI 02842-7244.
- What is Steven Diehl's phone number?
- The practice phone number listed in the NPPES registry for Steven Diehl is (401) 440-7927.
- Does Steven Diehl accept Medicare?
- Steven Diehl is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Diehl's NPI active?
- Yes — Steven Diehl's NPI (1215988175) is active in the NPPES registry as of the last update on 2008-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.