Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Douglas D Polenz, PHD
Mental Health Counselor in Mesa, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689774226
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Registry record
Entity type Individual (Type 1)
Name Dr. Douglas D Polenz
Credential PHD
Sex Male
Practice address 1930 S Alma School Rd, Ste. A104, Mesa, AZ, 85210
Phone (480) 820-0825
Fax (480) 820-7863
Enumeration date Sep 24, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 0797 (AZ) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD 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.
Frequently asked questions
How do I verify Douglas Polenz's NPI record?
Cross-check NPI 1689774226 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1689774226 active?
Yes, as of the latest NPPES snapshot, NPI 1689774226 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Anne Harris Clinical Psychologist · Mesa, AZ NPI 1033199716 At Home Care Inc. Home Health Agency · Mesa, AZ NPI 1659309219 Kim Johnson Clinical Child & Adolescent Psychologist · Mesa, AZ NPI 1881700961 Connie Hasler Marriage & Family Therapist · Mesa, AZ NPI 1881704310 Susan Gerace Psychiatric/Mental Health Nurse Practitioner · Mesa, AZ NPI 1306956784 Heather Thornton Mental Health Counselor · Mesa, AZ NPI 1508964164 Maria Ast Mental Health Counselor · Mesa, AZ NPI 1306944798 Elsa Romanowitz Mental Health Counselor · Mesa, AZ NPI 1659479814
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.