NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1659383669 MD
Verify on CMS → Yumi Kim, MD
Hematology & Oncology Physician in Somerset, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,232 in Hematology & 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
370
Medicare Part D claims · 82 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
61%
generic claims · 39% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$58.05
3 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Yumi Kim, MD carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 370 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 370
- Part D claims, 2023
- 61%
- generic prescribing
- 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.
Yumi Kim, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
370 ≥ 57th percentile 57% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Yumi Kim, 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 Yumi Kim, MD?
CMS neutral score, not measuredPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
370 56% vs specialty avg
MIPS final score
75/100
Specialty distribution in New Jersey
How Hematology & Oncology Physician compares to other specialties among New Jersey providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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).
Yumi Kim, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 107 CEDAR GROVE LN, Somerset, NJ, 08873, with a listed phone of (732) 356-8300. NPI 1659383669 was issued on 08/12/2006.
Medicare Part D records for calendar year 2023 show 370 prescription claims written by this provider, covering 82 Medicare beneficiaries and totaling roughly $1.8 million in drug spend, split 39% brand-name and 61% generic by claim count, with an opioid prescribing rate of 4.1%. On the CMS Merit-based Incentive Payment System, this provider carries a Final Score of 75/100 for the 2023 performance year, but CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score: this is the neutral performance threshold CMS assigns where nothing was scored, so it is not comparable with clinicians whose score was measured.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,232 enrolled providers across 54 states and an average of 847 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 | 1659383669 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 08/12/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
Hospital and facility affiliations
Facilities where Yumi Kim, 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.
Icahn School OF Medicine AT Mount Sinai
Staten Island, NY
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Yumi Kim, MD. Source: openpaymentsdata.cms.gov.
Total received
$58
Largest payer
Regeneron Healthcare Solutions, Inc.
Most common payment type
Education
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Above average
Yumi Kim, MD - brand share 39.0%
Hematology & Oncology Physician average
39% brand-name claims vs 61% generic, on 370 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
370
Total Claims
$1.8M
Total Drug Cost
82
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 544
- Total Day Supply
- 15,285
- Brand vs Generic
- 39% brand / 61% generic
- Brand Drug Cost
- $1.6M
- Generic Drug Cost
- $235K
- Opioid Claims
- 15 (4.1% rate)
Patient Demographics
- Average Patient Age
- 73.3 years
- Avg HCC Risk Score
- 1.90
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Yumi Kim, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydroxyurea
Hydroxyurea
32 claims
- Jakafi
Jakafi
32 claims
- Prednisone
Prednisone
26 claims
- Anastrozole
Anastrozole
22 claims
- Xarelto
Xarelto
15 claims
- Sprycel 12
Sprycel
12 claims
- Tasigna 12
Tasigna
12 claims
- Fondaparinux Sodium 11
Fondaparinux Sodium
11 claims
| Drug | Claims |
|---|---|
| Hydroxyurea | 32 |
| Jakafi Ruxolitinib Phosphate | 32 |
| Prednisone | 26 |
| Anastrozole | 22 |
| Xarelto Rivaroxaban | 15 |
| Sprycel Dasatinib | 12 |
| Tasigna Nilotinib Hcl | 12 |
| Fondaparinux Sodium | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Yumi Kim, MD fits within the Hematology & Oncology Physician landscape nationally.
11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Yumi Kim, MD's 370 claims are below the specialty average of 847.
Nationwide Hematology & Oncology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Kim, both outside New Jersey so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hematology & Oncology Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Kim.
One of 323 Hematology & Oncology Physician providers enrolled in New Jersey, 5 are shown here.
Dr. Muhammad Abbasi
M.D.
Mountain Lakes, NJ
Dr. May Abdo-Matkiwsky
D.O.
Sparta, NJ
Dr. Stephen Abo
D.O.
Newark, NJ
Dr. Ahmed Abou Hussein
M.D.
Camden, NJ
Dr. Kenneth Adler
M.D,
Morristown, NJ
Compare Hematology & 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 New Jersey medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology & 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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Frequently Asked Questions
What is Yumi Kim, MD's specialty? ▼
Yumi Kim, MD specializes in Hematology & Oncology Physician and practices in Somerset, New Jersey. Credentials: MD.
How much does Yumi Kim, MD prescribe under Medicare Part D? ▼
In 2023, Yumi Kim, MD wrote 370 Medicare Part D claims totaling $1.8M in drug costs for 82 beneficiaries.
What is Yumi Kim, MD's Medicare quality score? ▼
Yumi Kim, MD has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Yumi Kim, MD located? ▼
Yumi Kim, MD is located at 107 CEDAR GROVE LN, Somerset, NJ, 08873. Phone: (732) 356-8300.
What is Yumi Kim, MD's NPI number? ▼
Yumi Kim, MD's National Provider Identifier (NPI) is 1659383669, issued on 08/12/2006.
Does Yumi Kim, MD prescribe more brand-name or generic drugs? ▼
Yumi Kim, MD's prescribing is 39% brand-name and 61% generic drugs by claim count, with $1.6M in brand drug costs.
Does Yumi Kim, MD prescribe opioids? ▼
Yes, Yumi Kim, MD had 15 opioid claims in 2023 with an opioid prescribing rate of 4.1%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Yumi Kim, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Yumi Kim, MD's most frequently prescribed drugs include Hydroxyurea, Jakafi, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Yumi Kim, MD accept Medicare? ▼
Yumi Kim, MD appears in CMS Medicare data with 370 Part D claims and 82 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Yumi Kim, MD's credentials? ▼
Yumi Kim, MD's NPI is 1659383669 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.