Matthew Grinsell, M.D., PH.D.
NPI 1346364429 · Pediatric Nephrology Physician · Salt Lake City, UT
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Grinsell, M.D., PH.D. is a Pediatric Nephrology Physician provider in Salt Lake City, UT (NPI 1346364429).
Provider details
- NPI number
- 1346364429
- Entity type
- Individual
- Primary specialty
- Pediatric Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 65474331205 (UT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2007-03-16
- Last updated
- 2021-12-10
- Certified
- 2021-12-10
Frequently asked questions
- What is Matthew Grinsell's NPI number?
- Matthew Grinsell's National Provider Identifier (NPI) is 1346364429, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Grinsell's specialty?
- Matthew Grinsell is listed in the NPPES registry with a primary specialty of Pediatric Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Grinsell located?
- Matthew Grinsell's practice location on file with NPPES is 100 Mario Capecchi Dr, Salt Lake City, UT 84113-1103.
- What is Matthew Grinsell's phone number?
- The practice phone number listed in the NPPES registry for Matthew Grinsell is (801) 587-7575.
- Does Matthew Grinsell accept Medicare?
- Matthew Grinsell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Grinsell's NPI active?
- Yes — Matthew Grinsell's NPI (1346364429) is active in the NPPES registry as of the last update on 2021-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.