NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jayson Alan Weir, M.D.

Internal Medicine Physician in Carson City, NV · enumerated 2011.

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

National Provider Identifier

1518257138

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Jayson Alan Weir
Credential M.D.
Sex Male
Practice address 917 Mountain St, Carson City, NV, 89703
Fax (775) 515-0005
Enumeration date Apr 15, 2011
Last updated in NPPES Oct 5, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A127788 (CA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD61032587 (WA) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A127788 (CA) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 17276 (NV) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 17276 (NV) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 Jayson Weir?
The National Provider Identifier (NPI) for Jayson Weir is 1518257138, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jayson Weir practice?
The practice location on file with NPPES is in Carson City, NV. 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 2023-10-05.