Sarah Duggan
NPI 1255666947 · Addiction (Substance Use Disorder) Counselor · Waltham, MA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Duggan is a Addiction (Substance Use Disorder) Counselor provider in Waltham, MA (NPI 1255666947).
Provider details
- NPI number
- 1255666947
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
16 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2009-10-14
- Last updated
- 2025-04-02
- Certified
- 2025-04-02
Frequently asked questions
- What is Sarah Duggan's NPI number?
- Sarah Duggan's National Provider Identifier (NPI) is 1255666947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Duggan's specialty?
- Sarah Duggan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Sarah Duggan located?
- Sarah Duggan's practice location on file with NPPES is 20 High St Ste 1, Waltham, MA 02453-0574.
- What is Sarah Duggan's phone number?
- The practice phone number listed in the NPPES registry for Sarah Duggan is (781) 242-2200.
- Does Sarah Duggan accept Medicare?
- Sarah Duggan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Duggan's NPI active?
- Yes — Sarah Duggan's NPI (1255666947) is active in the NPPES registry as of the last update on 2025-04-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.