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Russell Marks
NPI 1306971122 · School Counselor · Concord, CA
Russell Marks is a School Counselor provider in Concord, CA (NPI 1306971122).
Provider details
- NPI number
- 1306971122
- Entity type
- Individual
- Primary specialty
- School CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(83/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
1034 Oak Grove Rd
Concord, CA 94518-3225
Phone: (925) 603-1900
Street-level locationGet directions
Mailing address
22103 Vista Del Plaza Ln Apt 14
Hayward, CA 94541-2857
Registry dates
- Enumerated
- 2007-02-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Russell Marks's NPI number?
- Russell Marks's National Provider Identifier (NPI) is 1306971122, 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 School Counselor (Behavioral Health & Social Service Providers).
- Where is Russell Marks located?
- Russell Marks's practice location on file with NPPES is 1034 Oak Grove Rd, Concord, CA 94518-3225.
- What is Russell Marks's phone number?
- The practice phone number listed in the NPPES registry for Russell Marks is (925) 603-1900.
- Is Russell Marks's NPI active?
- Yes — Russell Marks's NPI (1306971122) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.