Randall Wolthuis, PHD
NPI 1639390743 · Clinical Psychologist · Alto, MI
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Randall Wolthuis, PHD is a Clinical Psychologist provider in Alto, MI (NPI 1639390743).
Provider details
- NPI number
- 1639390743
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 6301006480 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2007-05-02
- Last updated
- 2024-03-21
- Certified
- 2024-03-21
Frequently asked questions
- What is Randall Wolthuis's NPI number?
- Randall Wolthuis's National Provider Identifier (NPI) is 1639390743, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Randall Wolthuis's specialty?
- Randall Wolthuis is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Randall Wolthuis located?
- Randall Wolthuis's practice location on file with NPPES is 8202 Triple L Trl Se, Alto, MI 49302-9551.
- What is Randall Wolthuis's phone number?
- The practice phone number listed in the NPPES registry for Randall Wolthuis is (616) 275-2113.
- Does Randall Wolthuis accept Medicare?
- Randall Wolthuis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Randall Wolthuis's NPI active?
- Yes — Randall Wolthuis's NPI (1639390743) is active in the NPPES registry as of the last update on 2024-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.