Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dirk Frankenberger, CPO

Prosthetist in Castro Valley, CA · enumerated 2019 · practices at Capstone Orthopedic, Inc..

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

National Provider Identifier

1366092892

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Registry record

Entity type Individual (Type 1)

Name Dirk Frankenberger

Credential CPO

Sex Male

Practice address 19845 Lake Chabot Rd Ste 302, Castro Valley, CA, 94546

Phone (510) 537-1210

Fax (510) 537-1082

Enumeration date Sep 17, 2019

Last updated in NPPES Sep 17, 2019

Taxonomy & licenses

224P00000X Prosthetist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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.

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Frequently asked questions

How do I verify Dirk Frankenberger's NPI record?

Cross-check NPI 1366092892 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1366092892 active?

Yes, as of the latest NPPES snapshot, NPI 1366092892 is active (record last updated 2019-09-17).

Other providers at this practice address

Browse all →

Capstone Orthopedic, Inc. Prosthetic/Orthotic Supplier · Castro Valley, CA NPI 1629084942 Christian Rae Posadas Prosthetist · Castro Valley, CA NPI 1629628243 Hunter Amundson Orthotist · Castro Valley, CA NPI 1427608694

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-17.