NPI registry status
Active
2026 NPPES data Medical Oncology Physician NPI 1629142658 MD
Verify on CMS → Marianne Melnik, MD
Medical Oncology Physician in Grand Rapids, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,792 in Medical Oncology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
127
Medicare Part D claims · 58 beneficiaries · Medical Oncology Physician avg: 689
MIPS score
86.4/100
▲ 3 pts above national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Marianne Melnik, MD reported a CMS MIPS final score of 86.4/100 - above the 83.1 national average - and filed 127 Medicare Part D claims in 2023.
- 86.4/100
- MIPS score · +3 vs avg
- 127
- Part D claims, 2023
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Marianne Melnik, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
86 Top 48% higher than 52% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Marianne Melnik, MD sits
This provider among medical oncology physician peers
Across the 1,527 medical oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Marianne Melnik, MD writes more Part D claims than 18% of them and scores higher on MIPS quality than 54% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one medical oncology physician peer from a representative sample of 60; the gold marker is Marianne Melnik, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Marianne Melnik, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Marianne Melnik, MD?
High performer (top quartile)Primary specialty
Medical Oncology Physician
Medicare Part D claims
127 82% vs specialty avg
MIPS final score
86.4/100 3.3 pts vs avg
Specialty distribution in Michigan
How Medical Oncology Physician compares to other specialties among Michigan providers
Medicare quality performance, MIPS
Marianne Melnik, MD's 2023 MIPS final score plotted against the Medical Oncology Physician national average
- MIPS Final Score
- 86.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Medical Oncology Physician) - 86.4/100 vs national avg 83.1
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Marianne Melnik, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 145 MICHIGAN ST NE, Grand Rapids, MI, 49503, with a listed phone of (616) 486-6333. NPI 1629142658 was issued on 11/20/2006.
Medicare Part D records for calendar year 2023 show 127 prescription claims written by this provider, covering 58 Medicare beneficiaries and totaling roughly $10K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.4/100 for the 2023 performance year (Quality 81.9, Cost 41.9), compared with the national average of 83.1.
Medical Oncology Physician is a narrow specialty nationwide, with 3,792 enrolled providers across 53 states and an average of 689 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1629142658 |
|---|---|
| Specialty | Medical Oncology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 11/20/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.4449
Final Score
Avg: 83.1
81.9351
Quality
41.9183
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Marianne Melnik, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Spectrum Health Primary Care Partners
Grand Rapids, MI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Michigan MI-BOM 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 - they are NOT specific to Marianne Melnik, MD. To verify Marianne Melnik, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
127
Total Claims
$10K
Total Drug Cost
58
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 337
- Total Day Supply
- 9,824
- Generic Drug Cost
- $9K
Patient Demographics
- Average Patient Age
- 74.4 years
- Avg HCC Risk Score
- 0.95
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Marianne Melnik, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Letrozole
Letrozole
48 claims
- Anastrozole
Anastrozole
38 claims
- Tamoxifen Citrate 16
Tamoxifen Citrate
16 claims
| Drug | Claims |
|---|---|
| Letrozole | 48 |
| Anastrozole | 38 |
| Tamoxifen Citrate | 16 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Oncology Physician Overview
How Marianne Melnik, MD fits within the Medical Oncology Physician landscape nationally.
3,792
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider
Marianne Melnik, MD's 127 claims are below the specialty average of 689.
Nearby Medical Oncology Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Melnik.
Dr. Eugene Agnone
M.D.
Roseville, MI
Dr. Muhammad Ahmed
M.D.
Three Rivers, MI
Dr. Adil Akhtar
M.D.
Sterling Heights, MI
Dr. Ayham Al Ashkar
MD
Royal Oak, MI
Dr. Kathryn Alguire
M.D.
Norton Shores, MI
Compare Medical Oncology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Michigan medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Oncology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
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Frequently Asked Questions
What is Marianne Melnik, MD's specialty? ▼
Marianne Melnik, MD specializes in Medical Oncology Physician and practices in Grand Rapids, Michigan. Credentials: MD.
How much does Marianne Melnik, MD prescribe under Medicare Part D? ▼
In 2023, Marianne Melnik, MD wrote 127 Medicare Part D claims totaling $10K in drug costs for 58 beneficiaries.
What is Marianne Melnik, MD's Medicare quality score? ▼
Marianne Melnik, MD has a CMS MIPS Final Score of 86.4/100 (Quality: 81.9, Cost: 41.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Marianne Melnik, MD located? ▼
Marianne Melnik, MD is located at 145 MICHIGAN ST NE, Grand Rapids, MI, 49503. Phone: (616) 486-6333.
What is Marianne Melnik, MD's NPI number? ▼
Marianne Melnik, MD's National Provider Identifier (NPI) is 1629142658, issued on 11/20/2006.
How many Medical Oncology Physician providers are there in the US? ▼
There are 3,792 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does Marianne Melnik, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Marianne Melnik, MD's most frequently prescribed drugs include Letrozole, Anastrozole, Tamoxifen Citrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marianne Melnik, MD accept Medicare? ▼
Marianne Melnik, MD appears in CMS Medicare data with 127 Part D claims and 58 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marianne Melnik, MD's credentials? ▼
Marianne Melnik, MD's NPI is 1629142658 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.