Aaron Irmen, OTR
NPI 1801451745 · Gerontology Occupational Therapist · Watertown, SD
Aaron Irmen, OTR is a Gerontology Occupational Therapist provider in Watertown, SD (NPI 1801451745).
Provider details
- NPI number
- 1801451745
- Entity type
- Individual
- Primary specialty
- Gerontology Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTR
- Sex
- Male
- Sole proprietor
- No
- License
- 1110 (SD)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2019-05-06
- Last updated
- 2019-05-06
Frequently asked questions
- What is Aaron Irmen's NPI number?
- Aaron Irmen's National Provider Identifier (NPI) is 1801451745, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Irmen's specialty?
- Aaron Irmen is listed in the NPPES registry with a primary specialty of Gerontology Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Aaron Irmen located?
- Aaron Irmen's practice location on file with NPPES is 415 4th Ave Ne, Watertown, SD 57201-2614.
- What is Aaron Irmen's phone number?
- The practice phone number listed in the NPPES registry for Aaron Irmen is (605) 866-8431.
- Is Aaron Irmen's NPI active?
- Yes — Aaron Irmen's NPI (1801451745) is active in the NPPES registry as of the last update on 2019-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.