Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marlee Gelfand, LMSW
Social Worker in Columbia, MD · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124784749
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Registry record
Entity type Individual (Type 1)
Name Marlee Gelfand
Credential LMSW
Sex Female
Practice address 5560 Sterrett Pl Ste 201, Columbia, MD, 21044
Phone (443) 546-4000
Fax (443) 546-4005
Enumeration date Nov 9, 2021
Last updated in NPPES Nov 9, 2021
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
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 Marlee Gelfand?
Marlee Gelfand is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Brad Bernstein Professional Counselor · Columbia, MD NPI 1831587096 Gabrielle Diener Mental Health Counselor · Columbia, MD NPI 1235785767 Leah Frankel Mental Health Counselor · Columbia, MD NPI 1235886979 Harold Davis Clinical Social Worker · Columbia, MD NPI 1730919408 Adiva Berkowitz Psychiatric/Mental Health Nurse Practitioner · Columbia, MD NPI 1881573970
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-09.