IndividualActive
Thomas Quarnstrom, M.D.
NPI 1508964651 · Family Medicine Physician · Grand Rapids, MI
Provider details
- NPI number
- 1508964651
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 045433 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
3019 Coit Ave Ne
Grand Rapids, MI 49505
Phone: (616) 365-9575
Street-level locationGet directions
Mailing address
8661 Winding Brook Lane Ne
Ada, MI 49301
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2007-07-08
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.