Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Greg R Johnson, DO

Nephrology Physician in Fort Wayne, IN · enumerated 2006 · practices at Parkview Health System Inc.

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

National Provider Identifier

1013960269

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Registry record

Entity type Individual (Type 1)

Name Greg R Johnson

Credential DO

Sex Male

Practice address 3909 New Vision Dr, Fort Wayne, IN, 46845

Phone (260) 469-6602

Fax (260) 969-3065

Enumeration date May 18, 2006

Last updated in NPPES Dec 21, 2022

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 02001531A (IN) 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
000000675115	Other	IN	ANTHEM
200015220	Medicaid	IN	-
P00895098	Other	IN	R.R. MEDICARE

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

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.

What specialty is Greg Johnson?

Greg Johnson is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-21.