Stephanie O'Sullivan, BA.PY,AT
NPI 1063845188 · Mental Health Counselor · Guilford, CT
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie O'Sullivan, BA.PY,AT is a Mental Health Counselor provider in Guilford, CT (NPI 1063845188).
Provider details
- NPI number
- 1063845188
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- BA.PY,AT
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Health Educator174H00000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
- 2013-08-13
- Last updated
- 2026-04-15
- Certified
- 2026-04-15
Frequently asked questions
- What is Stephanie O'Sullivan's NPI number?
- Stephanie O'Sullivan's National Provider Identifier (NPI) is 1063845188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie O'Sullivan's specialty?
- Stephanie O'Sullivan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Stephanie O'Sullivan located?
- Stephanie O'Sullivan's practice location on file with NPPES is 623 Village Walk, Guilford, CT 06437.
- What is Stephanie O'Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Stephanie O'Sullivan is (203) 779-9414.
- Does Stephanie O'Sullivan accept Medicare?
- Stephanie O'Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie O'Sullivan's NPI active?
- Yes — Stephanie O'Sullivan's NPI (1063845188) is active in the NPPES registry as of the last update on 2026-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.