Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Christy (Catherine) Matthews Stammen, PH.D.
Clinical Psychologist in Plano, TX · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1629127220
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Registry record
Entity type Individual (Type 1)
Name Dr. Christy (Catherine) Matthews Stammen
Credential PH.D.
Sex Female
Practice address 1700 Alma Dr, Suite 205, Plano, TX, 75075
Phone (972) 509-2611
Fax (972) 578-5742
Enumeration date Jan 10, 2007
Last updated in NPPES Apr 3, 2013
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 31913 (TX) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 087136A | Other | TX | BC BS PROVIDER NUMBER |
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.
Frequently asked questions
How do I verify Christy (Catherine) Stammen's NPI record?
Cross-check NPI 1629127220 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1629127220 active?
Yes, as of the latest NPPES snapshot, NPI 1629127220 is active (record last updated 2013-04-03).
Other providers at this practice address
Browse all → John Kamphaus Psychiatry Physician · Plano, TX NPI 1013924257 Lisa Schampan Mental Health Counselor · Plano, TX NPI 1922109347 Lori Sikes Clinical Social Worker · Plano, TX NPI 1912089855 Karl Neumann Psychologist · Plano, TX NPI 1316075146 Elderkidcare Inc. Attendant Care Provider · Plano, TX NPI 1235253386 Charles Jones Professional Counselor · Plano, TX NPI 1841311354 Patricia Allard Professional Counselor · Plano, TX NPI 1720254063 Catia Trevino Professional Counselor · Plano, TX NPI 1174775480
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-03.