Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory J S Lewis, M.D

Diagnostic Radiology Physician in Germantown, TN · enumerated 2005.

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

National Provider Identifier

1518954759

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Registry record

Entity type Individual (Type 1)

Name Gregory J S Lewis

Credential M.D

Sex Male

Practice address 7600 Wolf River Blvd, Ste 200, Germantown, TN, 38138

Phone (901) 747-1000

Fax (901) 747-1001

Enumeration date Oct 3, 2005

Last updated in NPPES May 31, 2018

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License R3815 (AR) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 57395 (TN) 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
119452001	Medicaid	AR	-

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

Where does Gregory Lewis practice?

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

What is the NPI number for Gregory Lewis?

The National Provider Identifier (NPI) for Gregory Lewis is 1518954759, 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 2018-05-31.