NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Melissa B. Mills, MS, CGC, LGC

Genetic Counselor (M.S.) in Palo Alto, CA · enumerated 2012.

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

National Provider Identifier

1942574520

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Melissa B. Mills
Credential MS, CGC, LGC
Sex Female
Practice address 725 Welch Rd, Mc:5652, Palo Alto, CA, 94304
Phone (650) 723-4100
Enumeration date Feb 29, 2012
Last updated in NPPES Feb 29, 2012

Taxonomy & licenses

170300000X Genetic Counselor (M.S.) Other Service Providers · License GC000047 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Melissa Mills's NPI record?
Cross-check NPI 1942574520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1942574520 active?
Yes, as of the latest NPPES snapshot, NPI 1942574520 is active (record last updated 2012-02-29).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-29.