NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1275647612 MD
Verify on CMS → Karen Ching, MD
Nephrology Physician in Honolulu, 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
860
Medicare Part D claims · 129 beneficiaries · Nephrology Physician avg: 1K
Industry payments
$149.99
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Karen Ching, MD filed 860 Medicare Part D claims in 2023 as a Nephrology Physician in Honolulu, Hawaii.
- 860
- Part D claims, 2023
- 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.
Karen Ching, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
860 Top 27% higher than 73% 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)
Karen 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 Karen Ching, MD?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
860 41% 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).
Karen Ching, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 3288 MOANALUA RD, Honolulu, HI, 96819, with a listed phone of (808) 432-0000. NPI 1275647612 was issued on 08/19/2006.
Medicare Part D records for calendar year 2023 show 860 prescription claims written by this provider, covering 129 Medicare beneficiaries and totaling roughly $86K in drug spend.
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 | 1275647612 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 08/19/2006 |
Hospital and facility affiliations
Facilities where Karen 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 Permanente Medical Group Inc
Honolulu, 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 Karen Ching, MD. Source: openpaymentsdata.cms.gov.
Total received
$150
Largest payer
Amgen 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
860
Total Claims
$86K
Total Drug Cost
129
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,029
- Total Day Supply
- 59,775
- Generic Drug Cost
- $40K
- Antibiotic Claims
- 17
Patient Demographics
- Average Patient Age
- 69.2 years
- Avg HCC Risk Score
- 6.35
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 34, 65-74: 55, 75-84: 29, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Karen Ching, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sevelamer Carbonate
Sevelamer Carbonate
76 claims
- Losartan Potassium
Losartan Potassium
71 claims
- Amlodipine Besylate
Amlodipine Besylate
64 claims
- Furosemide
Furosemide
64 claims
- Allopurinol
Allopurinol
48 claims
- Lisinopril
Lisinopril
40 claims
- Metoprolol Tartrate
Metoprolol Tartrate
40 claims
- Carvedilol
Carvedilol
33 claims
| Drug | Claims |
|---|---|
| Sevelamer Carbonate | 76 |
| Losartan Potassium | 71 |
| Amlodipine Besylate | 64 |
| Furosemide | 64 |
| Allopurinol | 48 |
| Lisinopril | 40 |
| Metoprolol Tartrate | 40 |
| Carvedilol | 33 |
| Hydralazine Hcl | 22 |
| Atorvastatin Calcium | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Karen 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
Karen Ching, MD's 860 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. Chester Ching
MD
Waipahu, 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
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Explore Hawaii
Frequently Asked Questions
What is Karen Ching, MD's specialty? ▼
Karen Ching, MD specializes in Nephrology Physician and practices in Honolulu, Hawaii. Credentials: MD.
How much does Karen Ching, MD prescribe under Medicare Part D? ▼
In 2023, Karen Ching, MD wrote 860 Medicare Part D claims totaling $86K in drug costs for 129 beneficiaries.
Where is Karen Ching, MD located? ▼
Karen Ching, MD is located at 3288 MOANALUA RD, Honolulu, HI, 96819. Phone: (808) 432-0000.
What is Karen Ching, MD's NPI number? ▼
Karen Ching, MD's National Provider Identifier (NPI) is 1275647612, issued on 08/19/2006.
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 Karen Ching, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Karen Ching, MD's most frequently prescribed drugs include Sevelamer Carbonate, Losartan Potassium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karen Ching, MD accept Medicare? ▼
Karen Ching, MD appears in CMS Medicare data with 860 Part D claims and 129 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karen Ching, MD's credentials? ▼
Karen Ching, MD's NPI is 1275647612 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.