Lars Nielson, MD
NPI 1740267848 · Obstetrics & Gynecology Physician · Lancaster, NH
Lars Nielson, MD is a Obstetrics & Gynecology Physician provider in Lancaster, NH (NPI 1740267848).
Provider details
- NPI number
- 1740267848
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
20 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
- 2005-12-29
- Last updated
- 2019-04-17
Frequently asked questions
- What is Lars Nielson's NPI number?
- Lars Nielson's National Provider Identifier (NPI) is 1740267848, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lars Nielson's specialty?
- Lars Nielson is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Lars Nielson located?
- Lars Nielson's practice location on file with NPPES is 170 Middle St, Lancaster, NH 03584-3556.
- What is Lars Nielson's phone number?
- The practice phone number listed in the NPPES registry for Lars Nielson is (603) 788-2521.
- Is Lars Nielson's NPI active?
- Yes — Lars Nielson's NPI (1740267848) is active in the NPPES registry as of the last update on 2019-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.