Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

12 Red Hammers, LLC

Acupuncturist in Portland, OR · enumerated 2015 · authorized official Stefan Grace, Principal.

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

National Provider Identifier

1821462920

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Registry record

Entity type Organization (Type 2)

Legal business name 12 Red Hammers, LLC

Practice address 8528 N Calhoun Ave, Portland, OR, 97203

Phone (503) 913-8551

Enumeration date Nov 30, 2015

Last updated in NPPES Nov 30, 2015

Taxonomy & classification

171100000X Acupuncturist Other Service Providers · License AC170452 (OR) Primary

Authorized official

Name Stefan Grace

Title Principal

Phone (503) 913-8551

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 is 12 Red Hammers, LLC located?

The practice location on file with NPPES is in Portland, OR.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2015-11-30. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-30.