Gregory Masselink, RN
NPI 1285429993 · Medical-Surgical Registered Nurse · Sioux Falls, SD
Gregory Masselink, RN is a Medical-Surgical Registered Nurse provider in Sioux Falls, SD (NPI 1285429993).
Provider details
- NPI number
- 1285429993
- Entity type
- Individual
- Primary specialty
- Medical-Surgical Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- Yes
- License
- R-196398-4 (MN)
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
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
- 2025-04-12
- Last updated
- 2025-04-12
- Certified
- 2025-04-12
Frequently asked questions
- What is Gregory Masselink's NPI number?
- Gregory Masselink's National Provider Identifier (NPI) is 1285429993, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Masselink's specialty?
- Gregory Masselink is listed in the NPPES registry with a primary specialty of Medical-Surgical Registered Nurse (Nursing Service Providers).
- Where is Gregory Masselink located?
- Gregory Masselink's practice location on file with NPPES is 2501 W 22nd St, Sioux Falls, SD 57105-1305.
- What is Gregory Masselink's phone number?
- The practice phone number listed in the NPPES registry for Gregory Masselink is (605) 336-3230.
- Is Gregory Masselink's NPI active?
- Yes — Gregory Masselink's NPI (1285429993) is active in the NPPES registry as of the last update on 2025-04-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.