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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Markham Aaron Aitken, MSW, QMHP

Case Manager/Care Coordinator in Portland, OR · enumerated 2007.

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

National Provider Identifier

1447453733

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Registry record

Entity type Individual (Type 1)
Name Mr. Markham Aaron Aitken
Credential MSW, QMHP
Sex Male
Practice address 11211 Se 82nd Ave, Suite O, Portland, OR, 97086
Phone (503) 722-6200
Fax (503) 722-6545
Enumeration date Jun 6, 2007
Last updated in NPPES Apr 23, 2012

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Primary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

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

Is NPI 1447453733 active?
Yes, as of the latest NPPES snapshot, NPI 1447453733 is active (record last updated 2012-04-23).
How do I verify Markham Aitken's NPI record?
Cross-check NPI 1447453733 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 2012-04-23.