Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark Thomas Sigwart Jr., PA-C
Physician Assistant in Falmouth, MA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790546752
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Registry record
Entity type Individual (Type 1)
Name Mark Thomas Sigwart Jr.
Credential PA-C
Sex Male
Practice address 360 Gifford St, Falmouth, MA, 02540
Phone (508) 457-4900
Enumeration date Jan 17, 2024
Last updated in NPPES Jan 23, 2024
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA100368 (MA) 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
What specialty is Mark Sigwart?
Mark Sigwart 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.
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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-23.