Mary Lazar, PSY.D.
NPI 1881623791 · Clinical Psychologist · Chester, PA
Mary Lazar, PSY.D. is a Clinical Psychologist provider in Chester, PA (NPI 1881623791).
Provider details
- NPI number
- 1881623791
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PS006421L (PA)
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
- 2006-07-02
- Last updated
- 2025-09-11
Frequently asked questions
- What is Mary Lazar's NPI number?
- Mary Lazar's National Provider Identifier (NPI) is 1881623791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Lazar's specialty?
- Mary Lazar is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mary Lazar located?
- Mary Lazar's practice location on file with NPPES is Neuropsychology Assessment Center at Widener University, Chester, PA 19013-5792.
- What is Mary Lazar's phone number?
- The practice phone number listed in the NPPES registry for Mary Lazar is (610) 499-4560.
- Is Mary Lazar's NPI active?
- Yes — Mary Lazar's NPI (1881623791) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.