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DR. RACHEL MACAK MD
NPI 1053975300
Pediatrics in Grand Rapids, MI

Active since April 23, 2019PECOS Enrolled
25 MICHIGAN ST NE STE 2100, GRAND RAPIDS, MI 49503(616) 391-8842 Get Directions Write a Review

NPPES record last updated: April 3, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 3, 2026, Aug 12, 2024, Jun 12, 2024 and 3 more (6 updates tracked since 2019).

About Dr. Rachel Macak Md NPPES

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

DR. RACHEL MACAK MD (NPI 1053975300) is an individual pediatrics provider in Grand Rapids, Michigan, licensed in Michigan (4301511862) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1053975300
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. RACHEL MACAKCredential: MD
Location Address25 MICHIGAN ST NE STE 2100Grand Rapids, MI 49503-2526
Mailing Address100 Michigan St Ne # Mc845Grand Rapids, MI 49503-2560
Phone(616) 391-8842
Sole ProprietorNo
Enumeration DateApril 23, 2019
Last NPPES UpdateApril 3, 20266 updates tracked since enumeration
NPPES CertifiedApril 3, 2026
✔ NPI 1053975300 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MI · 4301511862
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
25 MICHIGAN ST NE STE 2100, Grand Rapids, MI 49503
Open in Google Maps ↗

Other Names 1

Former Name (1)Rachel Butts

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Rachel Macak Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Rachel Macak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Spectrum Health Primary Care Partners
Same address
Pediatric Endocrinology
35 MICHIGAN ST NE STE 1800
Grand Rapids, MI 49503
  • Reassigned Medicare billing, Michigan enrollment
  • 2,446 clinicians in this Medicare group
NPI 1326599671 (616) 391-3933

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 49503 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
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.

SHELBY ELEANOR KELSH PHARMD
Pharmacist (Ambulatory Care)
25 MICHIGAN ST NE STE 2100
GRAND RAPIDS, MI 49503
Kent County (616) 391-3777
CALEB THIEL M.D.
Internal Medicine
25 MICHIGAN ST NE STE 2100
GRAND RAPIDS, MI 49503
Kent County (616) 391-3777
VINCENT B CRUZ M.D.
Medical Genetics (Clinical Genetics (M.D.))
25 MICHIGAN ST NE STE 2100
GRAND RAPIDS, MI 49503
Kent County (616) 391-2700
SALAR ALAM MD
Internal Medicine
25 MICHIGAN ST NE STE 2100
GRAND RAPIDS, MI 49503
Kent County (616) 391-3777
KIRSTEN ROSEMARIE WILHELM MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
25 MICHIGAN ST NE STE 2100
GRAND RAPIDS, MI 49503
Kent County (616) 267-2500
JACOB JOHN BAKER MD, PHD
Internal Medicine
25 MICHIGAN ST NE STE 2100
GRAND RAPIDS, MI 49503
Kent County (616) 391-3777
ANTONIA BIH FOMUNYAM NYONGABSEN
Internal Medicine
25 MICHIGAN ST NE STE 2100
GRAND RAPIDS, MI 49503
Kent County (616) 391-3777
JASON UMFLEET MD
Psychiatry & Neurology (Neurology with Special Qualifications in Child Neurology)
25 MICHIGAN ST NE STE 2100
GRAND RAPIDS, MI 49503
Kent County (616) 267-2500

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 Rachel Macak's NPI number?

The NPI number for Rachel Macak is 1053975300. It was assigned to this individual provider in the NPPES registry on April 23, 2019. The provider is also known as Rachel Butts.

Where is Rachel Macak located?

Rachel Macak practices at 25 Michigan St NE Ste 2100, Grand Rapids, MI 49503. The listed phone number is (616) 391-8842.

What is Rachel Macak's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Rachel Macak enrolled in Medicare?

Yes. Rachel Macak is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rachel Macak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Macak reassigns Medicare benefits to Spectrum Health Primary Care Partners (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 Rachel Macak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rachel Macak 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 1 other insurer list Rachel Macak 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 Rachel Macak was last updated on April 3, 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.