KAITLIN M TUINSTRA PSYD
NPI 1548045479
Psychologist - Clinical in Grand Rapids, MI

Active since August 29, 2023PECOS EnrolledAccepts Medicare Assignment
300 68TH ST SE, GRAND RAPIDS, MI 49548(616) 455-5000 Get Directions Write a Review

NPPES record last updated: March 4, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 4, 2026, Oct 1, 2024, Nov 17, 2023 and 1 more (4 updates tracked since 2023).

About Kaitlin M Tuinstra Psyd NPPES

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

KAITLIN M TUINSTRA PSYD (NPI 1548045479) is an individual clinical provider in Grand Rapids, Michigan, licensed in Michigan (6301019573) and active in the NPI registry since August 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1548045479
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameKAITLIN M TUINSTRACredential: PSYD
Location Address300 68TH ST SEGrand Rapids, MI 49548-6927
Mailing Address300 68th St SeGrand Rapids, MI 49548-6927 · (616) 455-5000
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateAugust 29, 2023
Last NPPES UpdateMarch 4, 20264 updates tracked since enumeration
NPPES CertifiedMarch 4, 2026
✔ NPI 1548045479 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MI · 6301019573
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.
Also ListedClinical NeuropsychologistTaxonomy 103G00000X · License 6352000637 (MI)
300 68TH ST SE, Grand Rapids, MI 49548

Other Names 1

Former Name (1)Kaitlin Hamacher

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Kaitlin M Tuinstra Psyd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618408097
PECOS Enrollment IDI20241009003573
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Kaitlin Tuinstra reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Professional
300 68TH ST SE
Grand Rapids, MI 49548
  • Reassigned Medicare billing, Michigan enrollment
  • 135 clinicians in this Medicare group

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49548 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$166.68 typical visit price
range $54.34 – $166.68
Typical copayment $41.67 (range $13.58 – $41.67)
Most-billed visit code 99205
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
300 68TH ST SE
GRAND RAPIDS, MI 49548
Social Worker
300 68TH ST SE
GRAND RAPIDS, MI 49548
Behavior Analyst
300 68TH ST SE
GRAND RAPIDS, MI 49548
Social Worker (Clinical)
300 68TH ST SE
GRAND RAPIDS, MI 49548
Social Worker
300 68TH ST SE
GRAND RAPIDS, MI 49548
Psychiatry & Neurology (Psychiatry)
300 68TH ST SE
GRAND RAPIDS, MI 49548
Social Worker (Clinical)
300 68TH ST SE
GRAND RAPIDS, MI 49548
Counselor (Mental Health)
300 68TH ST SE
GRAND RAPIDS, MI 49548

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 Kaitlin Tuinstra's NPI number?

The NPI number for Kaitlin Tuinstra is 1548045479. It was assigned to this individual provider in the NPPES registry on August 29, 2023. The provider is also known as Kaitlin Hamacher.

Where is Kaitlin Tuinstra located?

Kaitlin Tuinstra practices at 300 68th St SE, Grand Rapids, MI 49548. The listed phone number is (616) 455-5000.

What is Kaitlin Tuinstra's specialty?

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

Is Kaitlin Tuinstra enrolled in Medicare?

Yes. Kaitlin Tuinstra is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Kaitlin Tuinstra's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kaitlin Tuinstra reassigns Medicare benefits to Pine Rest Christian Mental Health Services (Grand Rapids, MI). The 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 Kaitlin Tuinstra's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kaitlin Tuinstra accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 3 other insurers list Kaitlin Tuinstra 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 Kaitlin Tuinstra was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.