Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marlena Grier
Behavior Technician in Livonia, MI · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699382838
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Registry record
Entity type Individual (Type 1)
Name Marlena Grier
Sex Female
Practice address 31229 Plymouth Rd, Livonia, MI, 48150
Phone (734) 466-5150
Enumeration date Sep 30, 2020
Last updated in NPPES Sep 30, 2020
Taxonomy & licenses
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
How do I verify Marlena Grier's NPI record?
Cross-check NPI 1699382838 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1699382838 active?
Yes, as of the latest NPPES snapshot, NPI 1699382838 is active (record last updated 2020-09-30).
Other providers at this practice address
Browse all → Kelsey Fafinski Behavior Analyst · Livonia, MI NPI 1588005524 Breanna Cox Behavior Technician · Livonia, MI NPI 1487265294 Tracey Walton Behavior Analyst · Livonia, MI NPI 1972110112 Ruqia Muthana Behavior Analyst · Livonia, MI NPI 1336745355 Kaitlyn Rennie Behavior Technician · Livonia, MI NPI 1689262834 Taylor Baker Behavior Technician · Livonia, MI NPI 1144818386 Caroline Sanchez Behavior Technician · Livonia, MI NPI 1528656766 Anna-Lena Purat Behavior Technician · Livonia, MI NPI 1386232528
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-30.