NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jason Holt Mavor, D.C.

Chiropractor in Watertown, MA · enumerated 2008 · practices at Gait Way To Wellness Physical Therapy.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1619134954

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Jason Holt Mavor
Credential D.C.
Sex Male
Practice address Watertown, MA, 02472
Fax (617) 393-3473
Enumeration date May 22, 2008
Last updated in NPPES Jun 3, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 30920 (CA) Secondary
111N00000X Chiropractor Chiropractic Providers · License 3254 (MA) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Jason Mavor?
The National Provider Identifier (NPI) for Jason Mavor is 1619134954, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jason Mavor practice?
The practice location on file with NPPES is in Watertown, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-03.