MARIANNE K MELNIK MD
NPI 1629142658
Surgery - Surgical Oncology in Grand Rapids, MI
About Marianne K Melnik Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIANNE K MELNIK MD (NPI 1629142658) is an individual surgical oncology provider in Grand Rapids, Michigan, licensed in Michigan (4301067619) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of University Of Chicago, Pritzker School Of Medicine (1983).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 2
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
Marianne K Melnik Md 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.
Medicare Billing Reassignments
2Medicare enrollment records show Marianne Melnik reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 405 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Spectrum Health
Acute Care Hospitals · Grand Rapids, MIPhysician 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
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 Marianne Melnik's NPI number?
The NPI number for Marianne Melnik is 1629142658. It was assigned to this individual provider in the NPPES registry on November 20, 2006.
Where is Marianne Melnik located?
Marianne Melnik practices at 145 Michigan St NE Suite 4400, Grand Rapids, MI 49503. The listed phone number is (616) 486-6333.
What is Marianne Melnik's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Marianne Melnik enrolled in Medicare?
Yes. Marianne Melnik 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 organizations bill Medicare for Marianne Melnik's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marianne Melnik reassigns Medicare benefits to 2 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI) and Spectrum Health Hospitals (Grand Rapids, MI). Each 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 Marianne Melnik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marianne Melnik 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 Marianne Melnik 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.
Is Marianne Melnik affiliated with any hospitals?
According to CMS data, Marianne Melnik is affiliated with Spectrum Health.
When was this NPI record last updated?
The NPPES record for Marianne Melnik was last updated on March 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Marianne K Melnik, MD · NPI 1629142658
Surgical Oncology physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since November 20, 2006.
## Identity
- **NPI:** 1629142658 (Entity type: Individual)
- **Enumerated:** November 20, 2006
- **Primary specialty:** Surgery - Surgical Oncology · taxonomy 2086X0206X
- **State license:** 4301067619 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 145 MICHIGAN ST NE, SUITE 4400, Grand Rapids, MI 49503-2562
- **Phone:** (616) 486-6333 · **Fax:** (616) 486-6399
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Spectrum Health Primary Care Partners (NPI 1326599671, Grand Rapids, MI); Spectrum Health Hospitals (NPI 1558407189, Grand Rapids, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Chicago, Pritzker School Of Medicine, class of 1983
## Record status
- **NPPES last updated:** March 3, 2021
- **Other identifiers:** Medicaid 104745617 (MI); Other ML067619 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1629142658) · Data from the CMS NPPES public registry.