James Olsen
NPI 1538055918 · Certified Registered Nurse Anesthetist · Nashua, NH
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Olsen is a Certified Registered Nurse Anesthetist provider in Nashua, NH (NPI 1538055918).
Provider details
- NPI number
- 1538055918
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 114609-23 (NH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing 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
- 2025-06-13
- Last updated
- 2025-06-13
- Certified
- 2025-06-13
Frequently asked questions
- What is James Olsen's NPI number?
- James Olsen's National Provider Identifier (NPI) is 1538055918, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Olsen's specialty?
- James Olsen is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is James Olsen located?
- James Olsen's practice location on file with NPPES is 8 Prospect St, Nashua, NH 03060-3925.
- What is James Olsen's phone number?
- The practice phone number listed in the NPPES registry for James Olsen is (603) 577-2000.
- Does James Olsen accept Medicare?
- James Olsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Olsen's NPI active?
- Yes — James Olsen's NPI (1538055918) is active in the NPPES registry as of the last update on 2025-06-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.