Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine Cashman Porter, CRNA

Certified Registered Nurse Anesthetist in Longmont, CO · enumerated 2012 · practices at Boulder Valley Gastroenterology Inc..

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

National Provider Identifier

1265799837

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Registry record

Entity type Individual (Type 1)

Name Katherine Cashman Porter

Credential CRNA

Sex Female

Practice address 1551 Professional Ln Unit 290, Longmont, CO, 80501

Phone (303) 604-5000

Enumeration date Apr 19, 2012

Last updated in NPPES Feb 21, 2025

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 259310 (AZ) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 0992773 (CO) Primary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 209009407 (IL) Secondary

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

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

Where does Katherine Porter practice?

The practice location on file with NPPES is in Longmont, CO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Katherine Porter?

The National Provider Identifier (NPI) for Katherine Porter is 1265799837, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Tamas Otrok Gastroenterology Physician · Longmont, CO NPI 1851386734 Steven Chetham Gastroenterology Physician · Longmont, CO NPI 1316962376 David Gatof Gastroenterology Physician · Longmont, CO NPI 1881613305 Simranjit Bedi Gastroenterology Physician · Longmont, CO NPI 1447678271 Rachel Povilus Physician Assistant · Longmont, CO NPI 1750980298 Boulder Valley Gastroenterology Inc. Gastroenterology Physician · Longmont, CO NPI 1184210312

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-21.