Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Allan Tomas, APRN, CRNA

Certified Registered Nurse Anesthetist in Winfield, IL · enumerated 2016.

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

National Provider Identifier

1346608098

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Registry record

Entity type Individual (Type 1)

Name Alexander Allan Tomas

Credential APRN, CRNA

Sex Male

Practice address 25 N Winfield Rd, Winfield, IL, 60190

Phone (630) 933-6675

Fax (630) 933-2614

Enumeration date Feb 9, 2016

Last updated in NPPES Jul 12, 2024

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN9354178 (FL) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 4704319374 (MI) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License APRN9354178 (FL) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 209020649 (IL) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
4704319374	Other	MI	MI LICENSE

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 Alexander Tomas?

Alexander Tomas is registered in NPPES with the primary taxonomy of Certified Registered Nurse Anesthetist. 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.

Other providers at this practice address

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Nicolai Hinds Obstetrics & Gynecology Physician · Winfield, IL NPI 1124024161 Teresa Smith Family Nurse Practitioner · Winfield, IL NPI 1861499899 Luis Torero Pediatric Pulmonology Physician · Winfield, IL NPI 1952399560 David Woodard Surgery Physician · Winfield, IL NPI 1447231782 James Carroll Cardiovascular Disease Physician · Winfield, IL NPI 1841272432 Michael Hussey Maternal & Fetal Medicine Physician · Winfield, IL NPI 1053395384 Neil Agruss Cardiovascular Disease Physician · Winfield, IL NPI 1780661736 Associated General Surgeons, S.C. Surgery Physician · Winfield, IL NPI 1174501266

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-12.