Gregory Zandstra, MD
NPI 1811977713 · Anesthesiology Physician · Grand Rapids, MI
Gregory Zandstra, MD is a Anesthesiology Physician provider in Grand Rapids, MI (NPI 1811977713).
Provider details
- NPI number
- 1811977713
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301054005 (MI)
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
20 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
- 2006-01-18
- Last updated
- 2014-07-03
Frequently asked questions
- What is Gregory Zandstra's NPI number?
- Gregory Zandstra's National Provider Identifier (NPI) is 1811977713, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Zandstra's specialty?
- Gregory Zandstra is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Zandstra located?
- Gregory Zandstra's practice location on file with NPPES is 3333 Evergreen Dr Ne, Grand Rapids, MI 49525-9756.
- What is Gregory Zandstra's phone number?
- The practice phone number listed in the NPPES registry for Gregory Zandstra is (616) 364-4200.
- Is Gregory Zandstra's NPI active?
- Yes — Gregory Zandstra's NPI (1811977713) is active in the NPPES registry as of the last update on 2014-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.