NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Melissa A Montblanc, LCSW

Clinical Social Worker in Walnut Creek, CA · enumerated 2009 · practices at Paula J Roemer, DDS Inc.

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

National Provider Identifier

1780827600

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Melissa A Montblanc
Credential LCSW
Sex Female
Practice address Walnut Creek, CA, 94596
Phone (625) 566-2300
Fax (360) 695-3436
Enumeration date Apr 7, 2009
Last updated in NPPES Apr 23, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License PENDING (WA) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 29253 (CA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Melissa Montblanc?
The National Provider Identifier (NPI) for Melissa Montblanc is 1780827600, a Type 1 (individual) record in the CMS NPPES registry.
Where does Melissa Montblanc practice?
The practice location on file with NPPES is in Walnut Creek, 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 2018-04-23.