NPI registry status
Active
2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1447693189 M.D.
Verify on CMS → Yvonne Chu, M.D.
Sleep Medicine (Internal Medicine) Physician in New Haven, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 859 in Sleep Medicine (Internal Medicine) 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
35
Medicare Part D claims · Sleep Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
82.7/100
▼ 0 pts below national avg 83.1 · Above neutral
Industry payments
$203.45
1 payments · CMS Open Payments (Sunshine Act)
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
Yvonne Chu, M.D. reported a CMS MIPS final score of 82.7/100 - below the 83.1 national average - and filed 35 Medicare Part D claims in 2023.
- 82.7/100
- MIPS score · 0 vs avg
- 35
- 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.
Yvonne Chu, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
83 39th percentile higher than 39% 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 Yvonne Chu, M.D. sits
This provider among sleep medicine (internal medicine) physician peers
Across the 295 sleep medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Yvonne Chu, M.D. writes more Part D claims than 8% of them and scores higher on MIPS quality than 41% - placing this provider in the lower-volume, lower-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 sleep medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Yvonne Chu, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Yvonne Chu, M.D. 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 Yvonne Chu, M.D.?
Near national averagePrimary specialty
Sleep Medicine (Internal Medicine) Physician
Medicare Part D claims
35 97% vs specialty avg
MIPS final score
82.7/100 0.4 pts vs avg
Specialty distribution in Connecticut
How Sleep Medicine (Internal Medicine) Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Yvonne Chu, M.D.'s 2023 MIPS final score plotted against the Sleep Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 82.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Sleep Medicine (Internal Medicine) Physician) - 82.7/100 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).
Yvonne Chu, M.D. appears in the CMS NPPES registry as a Sleep Medicine (Internal Medicine) Physician provider holding M.D. credentials at 136 SHERMAN AVE STE 504, New Haven, CT, 06511, with a listed phone of (203) 288-8300. NPI 1447693189 was issued on 04/11/2013.
Medicare Part D records for calendar year 2023 show 35 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $4K 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 82.7/100 for the 2023 performance year (Quality 91, Cost 63.1), compared with the national average of 83.1.
Sleep Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 859 enrolled providers across 52 states and an average of 1,310 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 | 1447693189 |
|---|---|
| Specialty | Sleep Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/11/2013 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
82.718
Final Score
Avg: 83.1
91.01
Quality
63.05
Cost
86
Promoting Interoperability
Reporting: Group practice
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 Yvonne Chu, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$203
Largest payer
Inspire Medical Systems, Inc.
Most common payment type
Food and Beverage
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
Yvonne Chu, M.D. - brand share 46.0%
Sleep Medicine (Internal Medicine) Physician average
46% brand-name claims vs 54% generic, on 35 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.
35
Total Claims
$4K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 37
- Total Day Supply
- 1,065
- Brand vs Generic
- 46% brand / 54% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $123
Patient Demographics
- Average Patient Age
- 69.7 years
- Avg HCC Risk Score
- 1.29
More Sleep Medicine (Internal Medicine) Physician in CT →
All providers in Connecticut →
Compare specialties →
Sleep Medicine (Internal Medicine) Physician Overview
How Yvonne Chu, M.D. fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.
859
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,310
Avg Claims per Provider
Yvonne Chu, M.D.'s 35 claims are below the specialty average of 1,310.
Nearby Sleep Medicine (Internal Medicine) Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Chu.
Dr. Karishma Bellara
PA
Stamford, CT
Dr. David Bushell
MD
Fairfield, CT
Dr. Amy Korwin
MD
New Britain, CT
Dr. Jose Mendez
M.D.
Danbury, CT
Dr. Irina Petrenko
M.D.
Middletown, CT
Compare Sleep Medicine (Internal Medicine) 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Sleep Medicine (Internal Medicine) 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 Yvonne Chu, M.D.'s specialty? ▼
Yvonne Chu, M.D. specializes in Sleep Medicine (Internal Medicine) Physician and practices in New Haven, Connecticut. Credentials: M.D..
How much does Yvonne Chu, M.D. prescribe under Medicare Part D? ▼
In 2023, Yvonne Chu, M.D. wrote 35 Medicare Part D claims totaling $4K in drug costs for N/A beneficiaries.
What is Yvonne Chu, M.D.'s Medicare quality score? ▼
Yvonne Chu, M.D. has a CMS MIPS Final Score of 82.7/100 (Quality: 91, Cost: 63.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Yvonne Chu, M.D. located? ▼
Yvonne Chu, M.D. is located at 136 SHERMAN AVE STE 504, New Haven, CT, 06511. Phone: (203) 288-8300.
What is Yvonne Chu, M.D.'s NPI number? ▼
Yvonne Chu, M.D.'s National Provider Identifier (NPI) is 1447693189, issued on 04/11/2013.
Does Yvonne Chu, M.D. prescribe more brand-name or generic drugs? ▼
Yvonne Chu, M.D.'s prescribing is 46% brand-name and 54% generic drugs by claim count, with $4K in brand drug costs.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 859 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,310 Medicare Part D claims per year.
Does Yvonne Chu, M.D. accept Medicare? ▼
Yvonne Chu, M.D. appears in CMS Medicare data with 35 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 Yvonne Chu, M.D.'s credentials? ▼
Yvonne Chu, M.D.'s NPI is 1447693189 with credentials M.D.. 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.
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.