Stephanie Gerrish O'Sullivan, BA.PY,AT
Mental Health Counselor · Guilford, CT
Stephanie Gerrish O'Sullivan, BA.PY,AT is a mental health counselor with a practice address in Guilford, Connecticut, and NPI 1063845188, issued on Aug 13, 2013. Check the license with the Connecticut board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Stephanie Gerrish O'Sullivan
- Credential
- BA.PY,AT
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- Practice location
- 623 Village Walk, Guilford, CT 06437
- Phone
- (203) 779-9414
- Enumerated
- Aug 13, 2013
- Record last updated
- Apr 15, 2026
- Medicaid ID
- 174H00000X CT
- Medicare enrollment
- Enrolled (PECOS I20260313000576); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest mental health counselor records → All 2,386 in Connecticut → Look up another NPI →
Verify Stephanie Gerrish O'Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Stephanie Gerrish O'Sullivan among 2,386 mental health counselor records in Connecticut
Stephanie Gerrish O'Sullivan, BA.PY,AT is one of 2,386 mental health counselor records with a practice address in Connecticut. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2013, is newer than 32% of them.
- NPI issued2013 · 32% of these records are older, 65% newer
- In a Medicare fileNo · 5% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated2015 · median 2016 among the 192 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 mental health counselor records list a practice address in Guilford
They are 6 of the 504 NPPES records with a practice address in Guilford, and 2,386 mental health counselor records in Connecticut. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,386 in Connecticut → Every provider in Guilford → Mental Health Counselor nationwide →
The 8 mental health counselor records with the nearest ZIP codes
- Magdalena Bonk, LPCGuilford, CT 064371326391699
- Susan Elliott, LPC, LADCGuilford, CT 064371699807230
- Jennifer Higgins, L.P.C.Guilford, CT 064371528073483
- Prerana Patel, LPCGuilford, CT 064371194341065
- Katerina Philbrick, LPCGuilford, CT 064371679343347
- Amberlyn GrassoHigganum, CT 064411871415240
- Paul Battles, LPCMadison, CT 064431992320741
- Barbara Baycroft, LPCMadison, CT 064431184021719
Common questions
What is Stephanie Gerrish O'Sullivan, BA.PY,AT's NPI number?
Stephanie Gerrish O'Sullivan, BA.PY,AT's National Provider Identifier (NPI) is 1063845188, issued on Aug 13, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie Gerrish O'Sullivan, BA.PY,AT located?
The NPPES record lists a practice address at 623 Village Walk, Guilford, CT, 06437. Phone: (203) 779-9414. Providers update this record themselves, so call before visiting.
How can I verify Stephanie Gerrish O'Sullivan, BA.PY,AT's license?
Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.