Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alaina Lisa Emery Ayers-Greenidge
Psychologist in Baltimore, MD · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154584431
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Registry record
Entity type Individual (Type 1)
Name Alaina Lisa Emery Ayers-Greenidge
Sex Female
Practice address 4800 Roland Ave Ste 301, Baltimore, MD, 21210
Phone (401) 873-7357
Enumeration date Jul 7, 2008
Last updated in NPPES Mar 5, 2024
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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
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 Alaina Ayers-Greenidge?
Alaina Ayers-Greenidge 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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-03-05.