Mary Marcus, PH.D.
NPI 1295743011 · Psychologist · Norwalk, CT
Mary Marcus, PH.D. is a Psychologist provider in Norwalk, CT (NPI 1295743011).
Provider details
- NPI number
- 1295743011
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 000804 (CT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
19 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
- 2006-08-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Marcus's NPI number?
- Mary Marcus's National Provider Identifier (NPI) is 1295743011, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Marcus's specialty?
- Mary Marcus is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Mary Marcus located?
- Mary Marcus's practice location on file with NPPES is 10 Wall St, Norwalk, CT 06850-3438.
- What is Mary Marcus's phone number?
- The practice phone number listed in the NPPES registry for Mary Marcus is (203) 847-3369.
- Is Mary Marcus's NPI active?
- Yes — Mary Marcus's NPI (1295743011) 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.