Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Shannon M. O'Sullivan, LPC
Professional Counselor in Erie, PA · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1659743581
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Registry record
Entity type Individual (Type 1)
Name Shannon M. O'Sullivan
Credential LPC
Sex Female
Practice address 17 Merline Ave, Erie, PA, 16509
Phone (814) 806-5406
Fax (814) 920-7108
Enumeration date Oct 30, 2015
Last updated in NPPES Jun 18, 2019
Taxonomy & licenses
LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy.
About the LPC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1518473891 | Other | PA | GROUP NPI |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Shannon O'Sullivan?
Shannon O'Sullivan is registered in NPPES with the primary taxonomy of Professional Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Mary Ditullio Nurse Practitioner · Erie, PA NPI 1053304998 Regional Health Services, Inc. Clinical Medical Laboratory · Erie, PA NPI 1912217274 Regional Health Services, Inc. Clinical Medical Laboratory · Erie, PA NPI 1922387067 Alyssa Beer Clinical Social Worker · Erie, PA NPI 1255703484 Let'S Conquer This, LLC Clinical Social Worker · Erie, PA NPI 1518473891 Marcie Gribbin Professional Counselor · Erie, PA NPI 1285105742
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-18.