Maher Massis
NPI 1023905858 · Mental Health Counselor · Herndon, VA
Maher Massis is a Mental Health Counselor provider in Herndon, VA (NPI 1023905858).
Provider details
- NPI number
- 1023905858
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 0704018169 (VA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
1 yr in NPPES registry
- Profile completeness38% of score
100% 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
- 2025-06-23
- Last updated
- 2025-06-23
- Certified
- 2025-06-23
Frequently asked questions
- What is Maher Massis's NPI number?
- Maher Massis's National Provider Identifier (NPI) is 1023905858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maher Massis's specialty?
- Maher Massis is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Maher Massis located?
- Maher Massis's practice location on file with NPPES is 13655 Dulles Technology Dr Ste 120, Herndon, VA 20171-4634.
- What is Maher Massis's phone number?
- The practice phone number listed in the NPPES registry for Maher Massis is (571) 665-4025.
- Is Maher Massis's NPI active?
- Yes — Maher Massis's NPI (1023905858) is active in the NPPES registry as of the last update on 2025-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.