Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gustavo A Fonseca, MD

Medical Oncology Physician in Lecanto, FL · enumerated 2006 · practices at Florida Cancer Specialists & Research Institute, LLC.

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

National Provider Identifier

1063478766

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Registry record

Entity type Individual (Type 1)

Name Dr. Gustavo A Fonseca

Credential MD

Sex Male

Practice address 521 N Lecanto Hwy, Lecanto, FL, 34461

Phone (352) 746-0707

Fax (352) 746-6333

Enumeration date Apr 22, 2006

Last updated in NPPES Feb 19, 2026

Taxonomy & licenses

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License ME57124 (FL) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License ME57124 (FL) 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
064874400	Medicaid	FL	-

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

How do I verify Gustavo Fonseca's NPI record?

Cross-check NPI 1063478766 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1063478766 active?

Yes, as of the latest NPPES snapshot, NPI 1063478766 is active (record last updated 2026-02-19).

Other providers at this practice address

Browse all →

Sunil Gandhi Medical Oncology Physician · Lecanto, FL NPI 1811945231 Florida Cancer Specialists & Research Institute, LLC Hematology & Oncology Physician · Lecanto, FL NPI 1699017988 Jeanine Grossman Nurse Practitioner · Lecanto, FL NPI 1790116697 Sunil Rohatgi Medical Oncology Physician · Lecanto, FL NPI 1912351727 Megan Brecher Family Nurse Practitioner · Lecanto, FL NPI 1437651965 Amber Albaugh Family Nurse Practitioner · Lecanto, FL NPI 1437798402 Nagapratap Ganta Medical Oncology Physician · Lecanto, FL NPI 1134757883 Tiffany Eddins Family Nurse Practitioner · Lecanto, FL NPI 1063247575

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-19.