Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jason Ainsfield, LCSW-C
Clinical Social Worker in Olney, MD · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235086653
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Registry record
Entity type Individual (Type 1)
Name Jason Ainsfield
Credential LCSW-C
Sex Male
Practice address 18101 Prince Philip Dr, Olney, MD, 20832
Phone (301) 774-8860
Enumeration date Mar 13, 2026
Last updated in NPPES Mar 13, 2026
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 23483 (MD) Primary
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 Jason Ainsfield?
Jason Ainsfield is registered in NPPES with the primary taxonomy of Clinical 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 → Montgomery General Hospital, Inc. General Acute Care Hospital · Olney, MD NPI 1114922341 John Herring Internal Medicine Physician · Olney, MD NPI 1710975040 Michael Kerr Emergency Medicine Physician · Olney, MD NPI 1669460515 Ellen Smith Emergency Medicine Physician · Olney, MD NPI 1770572463 Kerri Suissa Emergency Medicine Physician · Olney, MD NPI 1417946112 Vladimir Rakhmanin Hospitalist Physician · Olney, MD NPI 1275524167 Jeremy Graf Emergency Medicine Physician · Olney, MD NPI 1104817873 Michael Williams Emergency Medicine Physician · Olney, MD NPI 1871577783
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-13.