Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Craig Jj Tiernan, CRNA

Certified Registered Nurse Anesthetist in Dubuque, IA · enumerated 2006 · practices at Dubuque Dental Associates.

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

National Provider Identifier

1841267556

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Registry record

Entity type Individual (Type 1)

Name Mr. Craig Jj Tiernan

Credential CRNA

Sex Male

Practice address 1890 John F Kennedy Rd, Dubuque, IA, 52002

Phone (563) 556-8332

Fax (563) 556-8334

Enumeration date Mar 1, 2006

Last updated in NPPES Jul 29, 2008

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License D-075790 (IA) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
0077974	Medicaid	IA	-
43291100	Medicaid	WI	-

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 Craig Tiernan's NPI record?

Cross-check NPI 1841267556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1841267556 active?

Yes, as of the latest NPPES snapshot, NPI 1841267556 is active (record last updated 2008-07-29).

Other providers at this practice address

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Joel Malin Certified Registered Nurse Anesthetist · Dubuque, IA NPI 1811060973 Dubuque Dental Associates General Practice Dentistry · Dubuque, IA NPI 1871655159 Heyo Tjarks General Practice Dentistry · Dubuque, IA NPI 1720133812 Brett Kilburg General Practice Dentistry · Dubuque, IA NPI 1235284324 Melanie Stuntz General Practice Dentistry · Dubuque, IA NPI 1659426740 Amanda Eudy Dentist · Dubuque, IA NPI 1306523816

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-29.