IndividualActive
Sydney Keyser
NPI 1235518309 · Registered Nurse · Concord, NH
Sydney Keyser is a Registered Nurse provider in Concord, NH (NPI 1235518309).
Provider details
- NPI number
- 1235518309
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 064927-21 (NH)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(74/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
278 Pleasant St
Concord, NH 03301-2551
Phone: (603) 228-1600
Street-level locationGet directions
Mailing address
Po Box 2032
Concord, NH 03302-2032
Registry dates
- Enumerated
- 2015-05-22
- Last updated
- 2015-05-22
Frequently asked questions
- What is Sydney Keyser's NPI number?
- Sydney Keyser's National Provider Identifier (NPI) is 1235518309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sydney Keyser's specialty?
- Sydney Keyser is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Sydney Keyser located?
- Sydney Keyser's practice location on file with NPPES is 278 Pleasant St, Concord, NH 03301-2551.
- What is Sydney Keyser's phone number?
- The practice phone number listed in the NPPES registry for Sydney Keyser is (603) 228-1600.
- Is Sydney Keyser's NPI active?
- Yes — Sydney Keyser's NPI (1235518309) is active in the NPPES registry as of the last update on 2015-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.