IndividualActive
Mary Leonard, PHD
NPI 1134362908 · Clinical Psychologist · Arnold, MD
Mary Leonard, PHD is a Clinical Psychologist provider in Arnold, MD (NPI 1134362908).
Provider details
- NPI number
- 1134362908
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 01090 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(85/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
1509 Ritchie Hwy Ste F
Arnold, MD 21012-2742
Phone: (410) 757-2077
Fax: (410) 757-5184
Approximate (ZIP-level) locationGet directions
Mailing address
1509 Ritchie Hwy Ste F
Arnold, MD 21012-2742
Registry dates
- Enumerated
- 2009-04-09
- Last updated
- 2009-04-09
Frequently asked questions
- What is Mary Leonard's NPI number?
- Mary Leonard's National Provider Identifier (NPI) is 1134362908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Leonard's specialty?
- Mary Leonard is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mary Leonard located?
- Mary Leonard's practice location on file with NPPES is 1509 Ritchie Hwy Ste F, Arnold, MD 21012-2742.
- What is Mary Leonard's phone number?
- The practice phone number listed in the NPPES registry for Mary Leonard is (410) 757-2077.
- Is Mary Leonard's NPI active?
- Yes — Mary Leonard's NPI (1134362908) is active in the NPPES registry as of the last update on 2009-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.