Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Trygve O Honaas, M.D.

Gastroenterology Physician in Cape Girardeau, MO · enumerated 2006 · practices at Regional Brain & Spine LLC.

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

National Provider Identifier

1720177397

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Registry record

Entity type Individual (Type 1)

Name Dr. Trygve O Honaas

Credential M.D.

Sex Male

Practice address 1723 Broadway, Suite 220, Cape Girardeau, MO, 63701

Phone (573) 331-7910

Fax (573) 339-7644

Enumeration date Oct 12, 2006

Last updated in NPPES Jan 22, 2014

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License R6435 (MO) 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
200286102	Medicaid	MO	-

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

Is NPI 1720177397 active?

Yes, as of the latest NPPES snapshot, NPI 1720177397 is active (record last updated 2014-01-22).

How do I verify Trygve Honaas's NPI record?

Cross-check NPI 1720177397 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-22.