Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Margarita Marie Polk, MA, BCBA
Behavior Analyst in Tracy, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538384946
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Registry record
Entity type Individual (Type 1)
Name Mrs. Margarita Marie Polk
Credential MA, BCBA
Sex Female
Practice address 510 Whispering Wind Dr, Tracy, CA, 95377
Phone (209) 572-2589
Fax (209) 572-1461
Enumeration date Apr 13, 2007
Last updated in NPPES May 15, 2023
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-06-2902 (CA) 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.
Frequently asked questions
How do I verify Margarita Polk's NPI record?
Cross-check NPI 1538384946 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1538384946 active?
Yes, as of the latest NPPES snapshot, NPI 1538384946 is active (record last updated 2023-05-15).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-15.