NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Jeffrey A Alper, MD P A

Rheumatology Physician in Naples, FL · enumerated 2005 · practices at Rheumcare LLC.

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

National Provider Identifier

1689663296

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Registry record

Entity type Individual (Type 1)
Name Jeffrey A Alper
Credential MD P A
Sex Male
Practice address Naples, FL, 34112
Phone (239) 262-6550
Enumeration date Oct 17, 2005
Last updated in NPPES Jan 30, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License ME39139 (FL) Primary

Other identifiers

Identifier Type State Issuer
ME39139 Other FL LICENSE
046220900 Medicaid FL -
P00056783 Other - RR MEDICARE

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 Jeffrey Alper?
Jeffrey Alper is registered in NPPES with the primary taxonomy of Rheumatology 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 2025-01-30.