Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carlos Fermo Jr., MD

Geriatric Medicine (Internal Medicine) Physician in Stony Brook, NY · enumerated 2006.

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

National Provider Identifier

1326123886

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Registry record

Entity type Individual (Type 1)

Name Dr. Carlos Fermo Jr.

Credential MD

Sex Male

Practice address 100 Patriots Rd, Stony Brook, NY, 11790

Phone (631) 444-8608

Enumeration date Oct 25, 2006

Last updated in NPPES Jun 9, 2025

Taxonomy & licenses

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 233776 (NY) 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

How do I verify Carlos Fermo's NPI record?

Cross-check NPI 1326123886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326123886 active?

Yes, as of the latest NPPES snapshot, NPI 1326123886 is active (record last updated 2025-06-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-09.