Russell Marks, PH.D.
NPI 1447834569 · Psychologist · Providence, RI
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Russell Marks, PH.D. is a Psychologist provider in Providence, RI (NPI 1447834569).
Provider details
- NPI number
- 1447834569
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Psychologist103T00000X
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
5 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
Mailing address
Registry dates
- Enumerated
- 2021-05-06
- Last updated
- 2021-06-28
- Certified
- 2021-06-28
Frequently asked questions
- What is Russell Marks's NPI number?
- Russell Marks's National Provider Identifier (NPI) is 1447834569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Russell Marks's specialty?
- Russell Marks is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Russell Marks located?
- Russell Marks's practice location on file with NPPES is 110 Lockwood Street, Providence, RI 02903.
- What is Russell Marks's phone number?
- The practice phone number listed in the NPPES registry for Russell Marks is (401) 444-2128.
- Does Russell Marks accept Medicare?
- Russell Marks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Russell Marks's NPI active?
- Yes — Russell Marks's NPI (1447834569) is active in the NPPES registry as of the last update on 2021-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.