OrganizationActive
Granite State Lab LLC
NPI 1548686850 · Clinical Medical Laboratory · Rochester, NH
Provider details
- NPI number
- 1548686850
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- John Marzinzik, Senior Vp, Cfo(603) 335-8103
Specialties & taxonomies
Laboratories
Profile Score
Detailed profile(76/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
120 Washington Street
Rochester, NH 03867
Phone: (603) 330-7057
Street-level locationGet directions
Mailing address
120 Washington Street
Rochester, NH 03867
Registry dates
- Enumerated
- 2014-03-11
- Last updated
- 2014-03-11
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.