Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carl A Ruthman, MD

Pulmonary Disease Physician in Naples, FL · enumerated 2011.

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

National Provider Identifier

1801181862

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Registry record

Entity type Individual (Type 1)

Name Carl A Ruthman

Credential MD

Sex Male

Practice address 311 9th St N Ste 310, Naples, FL, 34102

Phone (239) 624-8250

Fax (239) 624-8251

Enumeration date Jun 17, 2011

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License ME114169 (FL) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License ME114169 (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
012208000	Medicaid	FL	-
14V5V	Other	FL	BCBS
HV541Y	Other	FL	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.

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Frequently asked questions

How do I verify Carl Ruthman's NPI record?

Cross-check NPI 1801181862 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1801181862 active?

Yes, as of the latest NPPES snapshot, NPI 1801181862 is active (record last updated 2022-07-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.