Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James S. Mason, D.O.

Orthopaedic Surgery Physician in Lowville, NY · enumerated 2006 · practices at Lewis County General Hospital.

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

National Provider Identifier

1902870934

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Registry record

Entity type Individual (Type 1)

Name James S. Mason

Credential D.O.

Sex Male

Practice address 7785 N State St Ste 120, Lowville, NY, 13367

Phone (315) 376-4505

Fax (313) 376-4259

Enumeration date Feb 15, 2006

Last updated in NPPES Apr 21, 2021

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 027867 (GA) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 309442 (NY) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
393116	Other	GA	BCBSGA
P00238249	Other	GA	RAILROAD MEDICARE
000790743D	Medicaid	GA	-
372315400	Other	-	UNIQUE SUPPLIER IDENTIFIE

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.

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Frequently asked questions

How do I verify James Mason's NPI record?

Cross-check NPI 1902870934 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1902870934 active?

Yes, as of the latest NPPES snapshot, NPI 1902870934 is active (record last updated 2021-04-21).

Other providers at this practice address

Browse all →

Shane Woolf Orthopaedic Surgery Physician · Lowville, NY NPI 1326044686 Nelson Wiegman Orthopaedic Surgery Physician · Lowville, NY NPI 1316996119 Steven Pals Orthopaedic Surgery Physician · Lowville, NY NPI 1063503217 Lewis County General Hospital Surgery Physician · Lowville, NY NPI 1659433217 Evan Leibelsperger Physician Assistant · Lowville, NY NPI 1396057691

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-21.