Melissa Massey
NPI 1558735894 · Addiction (Substance Use Disorder) Counselor · Menlo Park, CA
Melissa Massey is a Addiction (Substance Use Disorder) Counselor provider in Menlo Park, CA (NPI 1558735894).
Provider details
- NPI number
- 1558735894
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-11-24
- Last updated
- 2015-11-24
Frequently asked questions
- What is Melissa Massey's NPI number?
- Melissa Massey's National Provider Identifier (NPI) is 1558735894, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Massey's specialty?
- Melissa Massey is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Melissa Massey located?
- Melissa Massey's practice location on file with NPPES is 795 Willow Rd, Menlo Park, CA 94025-2539.
- What is Melissa Massey's phone number?
- The practice phone number listed in the NPPES registry for Melissa Massey is (650) 324-1470.
- Is Melissa Massey's NPI active?
- Yes — Melissa Massey's NPI (1558735894) is active in the NPPES registry as of the last update on 2015-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.