OrganizationActive
Topp Psychological Services PC
NPI 1740454420 · Psychologist · Grand Rapids, MI
Topp Psychological Services PC is a Psychologist organization in Grand Rapids, MI (NPI 1740454420).
Provider details
- NPI number
- 1740454420
- Entity type
- Organization
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Donald Topp, Owner(616) 975-0907
- License
- DT009389 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
4403 Cascade Rd Se Ste 1
Grand Rapids, MI 49546-3673
Phone: (616) 975-0907
Fax: (616) 975-3988
Street-level locationGet directions
Mailing address
4403 Cascade Rd Se Ste 1
Grand Rapids, MI 49546-3673
Registry dates
- Enumerated
- 2008-04-15
- Last updated
- 2008-04-15
Frequently asked questions
- What is Topp Psychological Services PC's NPI number?
- Topp Psychological Services PC's National Provider Identifier (NPI) is 1740454420, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Topp Psychological Services PC?
- Topp Psychological Services PC is classified in the NPPES registry as Psychologist (Behavioral Health & Social Service Providers).
- Where is Topp Psychological Services PC located?
- Topp Psychological Services PC's practice location on file with NPPES is 4403 Cascade Rd Se Ste 1, Grand Rapids, MI 49546-3673.
- What is Topp Psychological Services PC's phone number?
- The practice phone number listed in the NPPES registry for Topp Psychological Services PC is (616) 975-0907.
- Who is the authorized official for Topp Psychological Services PC?
- The authorized official listed on Topp Psychological Services PC's NPPES record is Donald Topp, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Topp Psychological Services PC's NPI active?
- Yes — Topp Psychological Services PC's NPI (1740454420) is active in the NPPES registry as of the last update on 2008-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.