Preston Allison, DO
NPI 1629677091 · Obstetrics & Gynecology Physician · Grand Rapids, MI
Enrolled with Medicare as Order and Referring Only - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Preston Allison, DO is a Obstetrics & Gynecology Physician provider in Grand Rapids, MI (NPI 1629677091).
Provider details
- NPI number
- 1629677091
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5151017435 (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
5 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
- 2020-10-18
- Last updated
- 2025-06-23
- Certified
- 2025-06-23
Frequently asked questions
- What is Preston Allison's NPI number?
- Preston Allison's National Provider Identifier (NPI) is 1629677091, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Preston Allison's specialty?
- Preston Allison is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Preston Allison located?
- Preston Allison's practice location on file with NPPES is 100 Michigan St Ne, Grand Rapids, MI 49503-2560.
- What is Preston Allison's phone number?
- The practice phone number listed in the NPPES registry for Preston Allison is (616) 391-2160.
- Does Preston Allison accept Medicare?
- Preston Allison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Preston Allison's NPI active?
- Yes — Preston Allison's NPI (1629677091) is active in the NPPES registry as of the last update on 2025-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.