Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John E Linn, M.D.

Q: What is the NPI number for John Linn?

The National Provider Identifier (NPI) for John Linn is 1902853393, a Type 1 (individual) record in the CMS NPPES registry.

Ophthalmology Physician in Memphis, TN · enumerated 2006.

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

National Provider Identifier

1902853393

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Registry record

Entity type Individual (Type 1)

Name John E Linn

Credential M.D.

Sex Male

Practice address 825 Ridge Lake Blvd, Memphis, TN, 38120

Phone (901) 685-2200

Fax (901) 820-2342

Enumeration date May 30, 2006

Last updated in NPPES Jan 15, 2018

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License N-8358 (AR) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD9957 (AL) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD015570 (TN) Primary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 19211 (MS) Secondary

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
180021494	Other	TN	PALMETTO RR MEDICARE
00116302	Medicaid	MS	-
3012901	Medicaid	TN	-
P00961513	Other	MS	PALMETTO RR MEDICARE
009947240	Medicaid	AL	-
122002001	Medicaid	AR	-
206916504	Medicaid	MO	-

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

Where does John Linn practice?

The practice location on file with NPPES is in Memphis, TN. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Linn?

The National Provider Identifier (NPI) for John Linn is 1902853393, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-15.