NPI registry status
Active
2026 NPPES data Pediatric Hematology & Oncology Physician NPI 1326000183 MD
Verify on CMS → Eugenia Chang, MD
Pediatric Hematology & Oncology Physician in Boise, Idaho.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 2,568 in Pediatric 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
26
Medicare Part D claims · Pediatric Hematology & Oncology Physician avg: 92
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.3/100
▲ 0 pts above national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Eugenia Chang, MD reported a CMS MIPS final score of 83.3/100 - above the 83.1 national average - and filed 26 Medicare Part D claims in 2023.
- 83.3/100
- MIPS score · +0 vs avg
- 26
- Part D claims, 2023
- 54%
- 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.
Eugenia Chang, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
83 42nd percentile higher than 42% 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 Eugenia Chang, MD sits
This provider among pediatric hematology & oncology physician peers
Across the 57 pediatric hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Eugenia Chang, MD writes more Part D claims than 58% of them and scores higher on MIPS quality than 53% - placing this provider in the high-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 pediatric hematology & oncology physician peer from a representative sample of 56; the gold marker is Eugenia Chang, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Eugenia Chang, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Eugenia Chang, MD?
Near national averagePrimary specialty
Pediatric Hematology & Oncology Physician
Medicare Part D claims
26 72% vs specialty avg
MIPS final score
83.3/100 0.2 pts vs avg
Specialty distribution in Idaho
How Pediatric Hematology & Oncology Physician compares to other specialties among Idaho providers
Medicare quality performance, MIPS
Eugenia Chang, MD's 2023 MIPS final score plotted against the Pediatric Hematology & Oncology Physician national average
- MIPS Final Score
- 83.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Pediatric Hematology & Oncology Physician) - 83.3/100 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).
Eugenia Chang, MD appears in the CMS NPPES registry as a Pediatric Hematology & Oncology Physician provider holding MD credentials at 100 E IDAHO ST, Boise, ID, 83712, with a listed phone of (208) 381-2782. NPI 1326000183 was issued on 04/05/2006.
Medicare Part D records for calendar year 2023 show 26 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $218K in drug spend, split 46% brand-name and 54% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.3/100 for the 2023 performance year (Quality 79.5, Cost 64.9), compared with the national average of 83.1.
Pediatric Hematology & Oncology Physician is a narrow specialty nationwide, with 2,568 enrolled providers across 52 states and an average of 92 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 | 1326000183 |
|---|---|
| Specialty | Pediatric Hematology & Oncology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/05/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
83.3209
Final Score
Avg: 83.1
79.5148
Quality
64.8883
Cost
100
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Above average
Eugenia Chang, MD - brand share 46.0%
Pediatric Hematology & Oncology Physician average
46% brand-name claims vs 54% generic, on 26 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.
26
Total Claims
$218K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 32
- Total Day Supply
- 905
- Brand vs Generic
- 46% brand / 54% generic
- Brand Drug Cost
- $217K
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 26.0 years
- Avg HCC Risk Score
- 0.90
More Pediatric Hematology & Oncology Physician in ID →
All providers in Idaho →
Compare specialties →
Pediatric Hematology & Oncology Physician Overview
How Eugenia Chang, MD fits within the Pediatric Hematology & Oncology Physician landscape nationally.
2,568
Pediatric Hematology & Oncology Physician Providers in US
52
States with Pediatric Hematology & Oncology Physician
92
Avg Claims per Provider
Eugenia Chang, MD's 26 claims are below the specialty average of 92.
Nearby Pediatric Hematology & Oncology Physician Providers in Idaho
Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as Chang.
Dr. Nicolas Camilo
MD
Boise, ID
Dr. April Evans
MD
Boise, ID
Dr. Matthew Hansen
MD
Boise, ID
Dr. Nathan Meeker
M.D.
Boise, ID
Dr. Martha Pacheco
M.D.
Boise, ID
Compare Pediatric 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 Idaho medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pediatric 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 Eugenia Chang, MD's specialty? ▼
Eugenia Chang, MD specializes in Pediatric Hematology & Oncology Physician and practices in Boise, Idaho. Credentials: MD.
How much does Eugenia Chang, MD prescribe under Medicare Part D? ▼
In 2023, Eugenia Chang, MD wrote 26 Medicare Part D claims totaling $218K in drug costs for N/A beneficiaries.
What is Eugenia Chang, MD's Medicare quality score? ▼
Eugenia Chang, MD has a CMS MIPS Final Score of 83.3/100 (Quality: 79.5, Cost: 64.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Eugenia Chang, MD located? ▼
Eugenia Chang, MD is located at 100 E IDAHO ST, Boise, ID, 83712. Phone: (208) 381-2782.
What is Eugenia Chang, MD's NPI number? ▼
Eugenia Chang, MD's National Provider Identifier (NPI) is 1326000183, issued on 04/05/2006.
Does Eugenia Chang, MD prescribe more brand-name or generic drugs? ▼
Eugenia Chang, MD's prescribing is 46% brand-name and 54% generic drugs by claim count, with $217K in brand drug costs.
How many Pediatric Hematology & Oncology Physician providers are there in the US? ▼
There are 2,568 Pediatric Hematology & Oncology Physician providers across 52 states in the US. The average Pediatric Hematology & Oncology Physician provider writes 92 Medicare Part D claims per year.
Does Eugenia Chang, MD accept Medicare? ▼
Eugenia Chang, MD appears in CMS Medicare data with 26 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Eugenia Chang, MD's credentials? ▼
Eugenia Chang, MD's NPI is 1326000183 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.