Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Antonio A Armstrong, M.D.

Nephrology Physician in Apopka, FL · enumerated 2013.

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

National Provider Identifier

1235472705

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Registry record

Entity type Individual (Type 1)

Name Dr. Antonio A Armstrong

Credential M.D.

Sex Male

Practice address 1761 Ocoee Apopka Rd, Apopka, FL, 32703

Phone (407) 515-2290

Fax (407) 703-4574

Enumeration date Apr 2, 2013

Last updated in NPPES Dec 9, 2025

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License ME134450 (FL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Antonio Armstrong practice?

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

What is the NPI number for Antonio Armstrong?

The National Provider Identifier (NPI) for Antonio Armstrong is 1235472705, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-09.