Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James H Johnston, MD

Gastroenterology Physician in Jackson, MS · enumerated 2005.

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

National Provider Identifier

1699763847

Verified

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Registry record

Entity type Individual (Type 1)

Name James H Johnston

Credential MD

Sex Male

Practice address 1421 N State St, Suite 203, Jackson, MS, 39202

Phone (601) 355-1234

Fax (601) 354-3881

Enumeration date Oct 12, 2005

Last updated in NPPES Aug 14, 2008

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 08471 (MS) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00115724	Medicaid	MS	-

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

Is NPI 1699763847 active?

Yes, as of the latest NPPES snapshot, NPI 1699763847 is active (record last updated 2008-08-14).

How do I verify James Johnston's NPI record?

Cross-check NPI 1699763847 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-14.