GRUPPEN PSYCHOLOGY SERVICES LLC
NPI 1710673348
Psychologist - Clinical in Grand Rapids, MI

Q: What is Gruppen Psychology Services LLC's NPI number?

The NPI number for Gruppen Psychology Services LLC is 1710673348. It was assigned to this organization in the NPPES registry on April 17, 2023.

Q: What is Gruppen Psychology Services LLC's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since April 17, 2023

655 KENMOOR AVE SE # 303, GRAND RAPIDS, MI 49546(734) 649-7906 Get Directions Write a Review

NPPES record last updated: July 27, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 27, 2023, Jul 19, 2023 (2 updates tracked since 2023).

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About Gruppen Psychology Services Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GRUPPEN PSYCHOLOGY SERVICES LLC (NPI 1710673348) is a healthcare organization registered as a clinical in Grand Rapids, Michigan and active in the NPI registry since April 2023. The organization lists Timothy Gruppen, Owner, as its authorized official.

NPPES Registry Identity

NPI1710673348

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameGRUPPEN PSYCHOLOGY SERVICES LLC

Location Address655 KENMOOR AVE SE # 303Grand Rapids, MI 49546-8622

Mailing AddressPo Box 140241Grand Rapids, MI 49514-0241 · (734) 649-7906

Phone(734) 649-7906

Organization SubpartNo

Authorized OfficialTimothy GruppenOwner · (734) 649-7906

Enumeration DateApril 17, 2023

Last NPPES UpdateJuly 27, 20232 updates tracked since enumeration

NPPES CertifiedJuly 27, 2023

✔ NPI 1710673348 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

655 KENMOOR AVE SE # 303, Grand Rapids, MI 49546

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gruppen Psychology Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Gruppen Psychology Services LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Timothy Gruppen, PSYD

Clinical Psychologist

NPI 1689912081

655 KENMOOR AVE SE STE 303
Grand Rapids, MI 49546

(616) 259-5365

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gruppen Psychology Services LLC's NPI number?

The NPI number for Gruppen Psychology Services LLC is 1710673348. It was assigned to this organization in the NPPES registry on April 17, 2023.

Where is Gruppen Psychology Services LLC located?

Gruppen Psychology Services LLC is located at 655 Kenmoor Ave SE # 303, Grand Rapids, MI 49546. The listed phone number is (734) 649-7906.

What is Gruppen Psychology Services LLC's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Gruppen Psychology Services LLC enrolled in Medicare?

Yes. Gruppen Psychology Services LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gruppen Psychology Services LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Gruppen Psychology Services LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Gruppen Psychology Services LLC accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Gruppen Psychology Services LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gruppen Psychology Services LLC was last updated on July 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.