NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1568481281 MD
Verify on CMS → Chester Ching, MD
Nephrology Physician in Waipahu, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,534 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
109
Medicare Part D claims · 46 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$777.81
11 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
Chester Ching, MD filed 109 Medicare Part D claims in 2023 as a Nephrology Physician in Waipahu, Hawaii, prescribing 76% generic.
- 109
- Part D claims, 2023
- 76%
- 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.
Chester Ching, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
109 35th percentile higher than 35% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Chester Ching, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Chester Ching, MD?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
109 93% vs specialty avg
Specialty distribution in Hawaii
How Nephrology Physician compares to other specialties among Hawaii providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Nephrology Physician. Verify directly:
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).
Chester Ching, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 94-229 WAIPAHU DEPOT ST STE 101, Waipahu, HI, 96797, with a listed phone of (808) 206-9849. NPI 1568481281 was issued on 07/19/2006.
Medicare Part D records for calendar year 2023 show 109 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $33K in drug spend, split 24% brand-name and 76% generic by claim count.
Nephrology Physician is a mid-sized specialty nationwide, with 10,534 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 | 1568481281 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/19/2006 |
Hospital and facility affiliations
Facilities where Chester Ching, 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.
Hawaii Kidney Specialists LLP
Aiea, HI
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 Chester Ching, MD. Source: openpaymentsdata.cms.gov.
Total received
$778
Largest payer
Bayer Healthcare Pharmaceuticals 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 · Typical
Chester Ching, MD - brand share 24.0%
Nephrology Physician average
24% brand-name claims vs 76% generic, on 109 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.
109
Total Claims
$33K
Total Drug Cost
46
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 262
- Total Day Supply
- 7,854
- Brand vs Generic
- 24% brand / 76% generic
- Brand Drug Cost
- $32K
- Generic Drug Cost
- $1K
Patient Demographics
- Average Patient Age
- 74.7 years
- Avg HCC Risk Score
- 2.06
- Gender Split
- 41% female / 59% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Chester Ching, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Furosemide
Furosemide
17 claims
- Amlodipine Besylate
Amlodipine Besylate
12 claims
- Farxiga
Farxiga
12 claims
| Drug | Claims |
|---|---|
| Furosemide | 17 |
| Amlodipine Besylate | 12 |
| Farxiga Dapagliflozin Propanediol | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Chester Ching, MD fits within the Nephrology Physician landscape nationally.
10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Chester Ching, MD's 109 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Ching.
Dr. Rossini Botev
MD
Honolulu, HI
Dr. Alex Carlos
MD
Waipahu, HI
Dr. Thomas Chen
MD
Honolulu, HI
Dr. Shiuh-Feng Cheng
M.D.
Honolulu, HI
Dr. Karen Ching
MD
Honolulu, HI
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 Hawaii 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Hawaii
Frequently Asked Questions
What is Chester Ching, MD's specialty? ▼
Chester Ching, MD specializes in Nephrology Physician and practices in Waipahu, Hawaii. Credentials: MD.
How much does Chester Ching, MD prescribe under Medicare Part D? ▼
In 2023, Chester Ching, MD wrote 109 Medicare Part D claims totaling $33K in drug costs for 46 beneficiaries.
Where is Chester Ching, MD located? ▼
Chester Ching, MD is located at 94-229 WAIPAHU DEPOT ST STE 101, Waipahu, HI, 96797. Phone: (808) 206-9849.
What is Chester Ching, MD's NPI number? ▼
Chester Ching, MD's National Provider Identifier (NPI) is 1568481281, issued on 07/19/2006.
Does Chester Ching, MD prescribe more brand-name or generic drugs? ▼
Chester Ching, MD's prescribing is 24% brand-name and 76% generic drugs by claim count, with $32K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,534 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 Chester Ching, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Chester Ching, MD's most frequently prescribed drugs include Furosemide, Amlodipine Besylate, Farxiga. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chester Ching, MD accept Medicare? ▼
Chester Ching, MD appears in CMS Medicare data with 109 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chester Ching, MD's credentials? ▼
Chester Ching, MD's NPI is 1568481281 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.
- 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.