Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Samuel Heisler, PA-C
Physician Assistant in Ashburn, VA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831612191
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Registry record
Entity type Individual (Type 1)
Name Samuel Heisler
Credential PA-C
Sex Male
Practice address 20905 Professional Plz Ste 110, Ashburn, VA, 20147
Phone (703) 726-0003
Fax (703) 726-6444
Enumeration date Jul 19, 2017
Last updated in NPPES Jun 5, 2023
Taxonomy & licenses
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0110-005856 (VA) 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 Samuel Heisler?
Samuel Heisler is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-05.