Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Sierra Johnson
Psychologist in Ypsilanti, MI · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1073062188
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Registry record
Entity type Individual (Type 1)
Name Ms. Sierra Johnson
Sex Female
Practice address 127 N Washington St, Ypsilanti, MI, 48197
Phone (734) 682-5544
Enumeration date Sep 30, 2016
Last updated in NPPES Sep 15, 2023
Taxonomy & licenses
247200000X Other Technician Technologists, Technicians & Other Technical Service Providers Secondary
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
What specialty is Sierra Johnson?
Sierra Johnson is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Ypsilanti Family Dental P.C General Practice Dentistry · Ypsilanti, MI NPI 1093023442 Antoinette Crocilla Clinical Psychologist · Ypsilanti, MI NPI 1861828410 Wise Mind Pllc Clinical Psychologist · Ypsilanti, MI NPI 1982147302 Matthew Stone Clinical Social Worker · Ypsilanti, MI NPI 1306353131 Lexi Gird Clinical Psychologist · Ypsilanti, MI NPI 1770242471 Sneha Balachander Clinical Social Worker · Ypsilanti, MI NPI 1720770175 Jessica Katz Clinical Social Worker · Ypsilanti, MI NPI 1033998638
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-15.