Mary Chappell, PH.D.
NPI 1831661727 · Clinical Psychologist · Bethesda, MD
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Chappell, PH.D. is a Clinical Psychologist provider in Bethesda, MD (NPI 1831661727).
Provider details
- NPI number
- 1831661727
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PSY1001341 (DC)
Specialties & taxonomies
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
7 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
- 2018-12-18
- Last updated
- 2023-01-03
- Certified
- 2023-01-03
Frequently asked questions
- What is Mary Chappell's NPI number?
- Mary Chappell's National Provider Identifier (NPI) is 1831661727, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Chappell's specialty?
- Mary Chappell is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Mary Chappell located?
- Mary Chappell's practice location on file with NPPES is 2 Wisconsin Cir Ste 700, Bethesda, MD 20815-7007.
- What is Mary Chappell's phone number?
- The practice phone number listed in the NPPES registry for Mary Chappell is (844) 942-1789.
- Does Mary Chappell accept Medicare?
- Mary Chappell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Chappell's NPI active?
- Yes — Mary Chappell's NPI (1831661727) is active in the NPPES registry as of the last update on 2023-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.