Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Michael Underhill

Certified Registered Nurse Anesthetist in Chattanooga, TN · enumerated 2017.

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

National Provider Identifier

1467978338

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name David Michael Underhill

Sex Male

Practice address 979 E 3rd St Ste C235, Chattanooga, TN, 37403

Phone (423) 602-8400

Enumeration date Aug 22, 2017

Last updated in NPPES Jan 31, 2018

Taxonomy & licenses

163WC0200X Critical Care Medicine Registered Nurse Nursing Service Providers · License 201167 (TN) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License APN23308 (TN) Primary

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 David Underhill?

David Underhill 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

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-31.