Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Melissa Anne Haas
Counselor in Berkeley, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609903558
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Registry record
Entity type Individual (Type 1)
Name Mrs. Melissa Anne Haas
Sex Female
Practice address 830 Regal Rd, Berkeley, CA, 94708
Phone (510) 644-8810
Enumeration date Feb 27, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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
What is the NPI number for Melissa Haas?
The National Provider Identifier (NPI) for Melissa Haas is 1609903558, a Type 1 (individual) record in the CMS NPPES registry.
Where does Melissa Haas practice?
The practice location on file with NPPES is in Berkeley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.