Stephanie Merwin, PHD
NPI 1902456924 · Clinical Psychologist · Washington, DC
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Merwin, PHD is a Clinical Psychologist provider in Washington, DC (NPI 1902456924).
Provider details
- NPI number
- 1902456924
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 06121 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
6 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
- 2019-09-12
- Last updated
- 2020-10-28
- Certified
- 2020-10-28
Frequently asked questions
- What is Stephanie Merwin's NPI number?
- Stephanie Merwin's National Provider Identifier (NPI) is 1902456924, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Merwin's specialty?
- Stephanie Merwin is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Stephanie Merwin located?
- Stephanie Merwin's practice location on file with NPPES is 111 Michigan Ave Nw, Washington, DC 20010-2916.
- What is Stephanie Merwin's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Merwin is (202) 476-2265.
- Does Stephanie Merwin accept Medicare?
- Stephanie Merwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Merwin's NPI active?
- Yes — Stephanie Merwin's NPI (1902456924) is active in the NPPES registry as of the last update on 2020-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.