Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gideon Griffeth Lewis, M.D.

Adult Medicine Physician in Winter Park, FL · enumerated 2006.

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

National Provider Identifier

1508845116

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Registry record

Entity type Individual (Type 1)

Name Dr. Gideon Griffeth Lewis

Credential M.D.

Sex Male

Practice address 650 N Wymore Rd, Suite 202, Winter Park, FL, 32789

Phone (407) 647-0199

Fax (407) 647-0213

Enumeration date Jan 12, 2006

Last updated in NPPES Apr 28, 2008

Taxonomy & licenses

207QA0000X Adolescent Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License ME 29256 (FL) Secondary

207QA0505X Adult Medicine Physician Allopathic & Osteopathic Physicians · License ME 29256 (FL) Primary

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License ME 29256 (FL) 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
2403499008	Other	FL	CIGNA HEALTHCARE ID
ME 29256	Other	FL	STATE LICENSE
4311031	Other	FL	AETNA PPO/POS ID
59249	Other	FL	BCBS ID
064809400	Medicaid	FL	-
080137252	Other	FL	RAILROAD MEDICARE ID
2134653	Other	FL	AETNA HMO ID

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

What specialty is Gideon Lewis?

Gideon Lewis is registered in NPPES with the primary taxonomy of Adult Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-28.