William Maas
NPI 1417635681 · Student in an Organized Health Care Education/Training Program · Valhalla, NY
William Maas is a Student in an Organized Health Care Education/Training Program provider in Valhalla, NY (NPI 1417635681).
Provider details
- NPI number
- 1417635681
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2023-07-07
- Last updated
- 2025-04-09
- Certified
- 2025-04-09
Frequently asked questions
- What is William Maas's NPI number?
- William Maas's National Provider Identifier (NPI) is 1417635681, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Maas's specialty?
- William Maas is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is William Maas located?
- William Maas's practice location on file with NPPES is 100 Woods Rd, Valhalla, NY 10595-1530.
- What is William Maas's phone number?
- The practice phone number listed in the NPPES registry for William Maas is (914) 463-7667.
- Is William Maas's NPI active?
- Yes — William Maas's NPI (1417635681) is active in the NPPES registry as of the last update on 2025-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.