Michael Holtt
NPI 1811248131 · Addiction (Substance Use Disorder) Registered Nurse · Harrison, NY
Michael Holtt is a Addiction (Substance Use Disorder) Registered Nurse provider in Harrison, NY (NPI 1811248131).
Provider details
- NPI number
- 1811248131
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 625341 (NY)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs 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
- 2012-09-26
- Last updated
- 2012-09-26
Frequently asked questions
- What is Michael Holtt's NPI number?
- Michael Holtt's National Provider Identifier (NPI) is 1811248131, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Holtt's specialty?
- Michael Holtt is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Registered Nurse (Nursing Service Providers).
- Where is Michael Holtt located?
- Michael Holtt's practice location on file with NPPES is 275 North St, Harrison, NY 10528-1140.
- What is Michael Holtt's phone number?
- The practice phone number listed in the NPPES registry for Michael Holtt is (914) 925-5211.
- Is Michael Holtt's NPI active?
- Yes — Michael Holtt's NPI (1811248131) is active in the NPPES registry as of the last update on 2012-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.