NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1760588198 MD
Verify on CMS → Brenda Chan, MD
Nephrology Physician in Stamford, 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 10,569 in Nephrology 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
986
Medicare Part D claims · 163 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.1/100
▼ 4 pts below national avg 83.1 · Above neutral
Industry payments
$8.91
4 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
Brenda Chan, MD reported a CMS MIPS final score of 79.1/100 - below the 83.1 national average - and filed 986 Medicare Part D claims in 2023.
- 79.1/100
- MIPS score · -4 vs avg
- 986
- Part D claims, 2023
- 85%
- 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.
Brenda Chan, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
79 30th percentile higher than 30% 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 Brenda Chan, MD sits
This provider among nephrology physician peers
Across the 2,476 nephrology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Brenda Chan, MD writes more Part D claims than 46% of them and scores higher on MIPS quality than 43% - 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 nephrology physician peer from a representative sample of 60; the gold marker is Brenda Chan, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Brenda Chan, 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 Brenda Chan, MD?
Near national averagePrimary specialty
Nephrology Physician
Medicare Part D claims
986 32% vs specialty avg
MIPS final score
79.1/100 4 pts vs avg
Specialty distribution in Connecticut
How Nephrology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Brenda Chan, MD's 2023 MIPS final score plotted against the Nephrology Physician national average
- MIPS Final Score
- 79.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nephrology Physician) - 79.1/100 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).
Brenda Chan, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 30 COMMERCE RD, Stamford, CT, 06902, with a listed phone of (203) 324-7666. NPI 1760588198 was issued on 09/15/2006.
Medicare Part D records for calendar year 2023 show 986 prescription claims written by this provider, covering 163 Medicare beneficiaries and totaling roughly $169K in drug spend, split 15% brand-name and 85% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.1/100 for the 2023 performance year (Quality 73.2, Cost 57.9), compared with the national average of 83.1.
Nephrology Physician is a mid-sized specialty nationwide, with 10,569 enrolled providers across 55 states and an average of 1,454 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 | 1760588198 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 09/15/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.0781
Final Score
Avg: 83.1
73.195
Quality
57.8987
Cost
99
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Brenda Chan, 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.
Stamford Health Medical Group Inc
Stamford, CT
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 Brenda Chan, MD. Source: openpaymentsdata.cms.gov.
Total received
$9
Largest payer
Travere Therapeutics, 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 · Typical
Brenda Chan, MD - brand share 15.0%
Nephrology Physician average
15% brand-name claims vs 85% generic, on 986 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.
986
Total Claims
$169K
Total Drug Cost
163
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,333
- Total Day Supply
- 69,489
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $114K
- Generic Drug Cost
- $56K
Patient Demographics
- Average Patient Age
- 75.5 years
- Avg HCC Risk Score
- 4.21
- Gender Split
- 42% female / 58% male
- Age Distribution
- <65: 19, 65-74: 49, 75-84: 61, 85+: 34
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Brenda Chan, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Amlodipine Besylate
Amlodipine Besylate
125 claims
- Calcitriol
Calcitriol
95 claims
- Losartan Potassium
Losartan Potassium
66 claims
- Calcium Acetate
Calcium Acetate
58 claims
- Sevelamer Carbonate
Sevelamer Carbonate
52 claims
- Torsemide 49
Torsemide
49 claims
- Gabapentin 44
Gabapentin
44 claims
- Carvedilol 43
Carvedilol
43 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 125 |
| Calcitriol | 95 |
| Losartan Potassium | 66 |
| Calcium Acetate | 58 |
| Sevelamer Carbonate | 52 |
| Torsemide | 49 |
| Gabapentin | 44 |
| Carvedilol | 43 |
| Jardiance Empagliflozin | 39 |
| Furosemide | 30 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Brenda Chan, MD fits within the Nephrology Physician landscape nationally.
10,569
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Brenda Chan, MD's 986 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Chan.
Dr. Mervet Abouelkair
M.D.
New Britain, CT
Dr. Ali Abu-Alfa
MD
New Haven, CT
Dr. Nancy Adams
M.D.
Farmington, CT
Dr. Bayode Afolalu
M.D.
Orange, CT
Dr. Feras Al Shami
M.D.
New Britain, CT
Compare Nephrology 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 Nephrology 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 Brenda Chan, MD's specialty? ▼
Brenda Chan, MD specializes in Nephrology Physician and practices in Stamford, Connecticut. Credentials: MD.
How much does Brenda Chan, MD prescribe under Medicare Part D? ▼
In 2023, Brenda Chan, MD wrote 986 Medicare Part D claims totaling $169K in drug costs for 163 beneficiaries.
What is Brenda Chan, MD's Medicare quality score? ▼
Brenda Chan, MD has a CMS MIPS Final Score of 79.1/100 (Quality: 73.2, Cost: 57.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Brenda Chan, MD located? ▼
Brenda Chan, MD is located at 30 COMMERCE RD, Stamford, CT, 06902. Phone: (203) 324-7666.
What is Brenda Chan, MD's NPI number? ▼
Brenda Chan, MD's National Provider Identifier (NPI) is 1760588198, issued on 09/15/2006.
Does Brenda Chan, MD prescribe more brand-name or generic drugs? ▼
Brenda Chan, MD's prescribing is 15% brand-name and 85% generic drugs by claim count, with $114K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,569 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Brenda Chan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Brenda Chan, MD's most frequently prescribed drugs include Amlodipine Besylate, Calcitriol, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brenda Chan, MD accept Medicare? ▼
Brenda Chan, MD appears in CMS Medicare data with 986 Part D claims and 163 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brenda Chan, MD's credentials? ▼
Brenda Chan, MD's NPI is 1760588198 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.
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.