Marianne Mathewson-Chapman, ARNP
NPI 1649456484 · Adult Health Nurse Practitioner · Washington, DC
Marianne Mathewson-Chapman, ARNP is a Adult Health Nurse Practitioner provider in Washington, DC (NPI 1649456484).
Provider details
- NPI number
- 1649456484
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- 1487792 (FL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
- 2008-01-10
- Last updated
- 2008-01-10
Frequently asked questions
- What is Marianne Mathewson-Chapman's NPI number?
- Marianne Mathewson-Chapman's National Provider Identifier (NPI) is 1649456484, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marianne Mathewson-Chapman's specialty?
- Marianne Mathewson-Chapman is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marianne Mathewson-Chapman located?
- Marianne Mathewson-Chapman's practice location on file with NPPES is 1990 K St Nw, Washington, DC 20006-1103.
- What is Marianne Mathewson-Chapman's phone number?
- The practice phone number listed in the NPPES registry for Marianne Mathewson-Chapman is (202) 266-4646.
- Is Marianne Mathewson-Chapman's NPI active?
- Yes — Marianne Mathewson-Chapman's NPI (1649456484) is active in the NPPES registry as of the last update on 2008-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.