NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1700852399 M.D.
Verify on CMS → John Wu, M.D.
Nephrology Physician in Springdale, Arkansas.
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
2K
Medicare Part D claims · 313 beneficiaries · Nephrology Physician avg: 1K
Industry payments
$14.87
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
John Wu, M.D. filed 1,983 Medicare Part D claims in 2023 as a Nephrology Physician in Springdale, Arkansas.
- 2K
- 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.
John Wu, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,983 Top 16% higher than 84% 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)
John Wu, M.D. 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 John Wu, M.D.?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
1,983 36% vs specialty avg
Specialty distribution in Arkansas
How Nephrology Physician compares to other specialties among Arkansas 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).
John Wu, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 813 FOUNDERS PARK DR E, Springdale, AR, 72762, with a listed phone of (479) 463-2440. NPI 1700852399 was issued on 02/24/2006.
Medicare Part D records for calendar year 2023 show 1,983 prescription claims written by this provider, covering 313 Medicare beneficiaries and totaling roughly $284K in drug spend, with an opioid prescribing rate of 1.4%.
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 | 1700852399 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/24/2006 |
Hospital and facility affiliations
Facilities where John Wu, M.D. 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.
Washington Regional Medical System
Fayetteville, AR
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 John Wu, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$15
Largest payer
Boehringer Ingelheim 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,983
Total Claims
$284K
Total Drug Cost
313
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,389
- Total Day Supply
- 128,211
- Generic Drug Cost
- $51K
- Opioid Claims
- 27 (1.4% rate)
- Antibiotic Claims
- 79
Patient Demographics
- Average Patient Age
- 70.2 years
- Avg HCC Risk Score
- 4.66
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 85, 65-74: 101, 75-84: 101, 85+: 26
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Wu, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Furosemide
Furosemide
151 claims
- Carvedilol
Carvedilol
113 claims
- Losartan Potassium
Losartan Potassium
87 claims
- Lisinopril
Lisinopril
79 claims
- Spironolactone
Spironolactone
78 claims
- Amlodipine Besylate
Amlodipine Besylate
66 claims
- Jardiance
Jardiance
64 claims
- Nifedipine Er
Nifedipine Er
63 claims
| Drug | Claims |
|---|---|
| Furosemide | 151 |
| Carvedilol | 113 |
| Losartan Potassium | 87 |
| Lisinopril | 79 |
| Spironolactone | 78 |
| Amlodipine Besylate | 66 |
| Jardiance Empagliflozin | 64 |
| Nifedipine Er Nifedipine | 63 |
| Torsemide | 54 |
| Hydralazine Hcl | 53 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How John Wu, M.D. 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
John Wu, M.D.'s 1,983 claims are above the specialty average of 1,454.
Nearby Nephrology Physician Providers in Arkansas
Other clinicians with the same primary specialty enrolled in Arkansas, drawn from the same CMS NPPES roster as Wu.
Dr. Hania Al-Shahrouri
MD
Fort Smith, AR
Dr. Muhammad Alam
MD, MPH
Little Rock, AR
Dr. Shamsul Alam
M.D.
Bentonville, AR
Umair Ali
Little Rock, AR
Dr. John Arthur
MD
Little Rock, AR
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 Arkansas 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 John Wu, M.D.'s specialty? ▼
John Wu, M.D. specializes in Nephrology Physician and practices in Springdale, Arkansas. Credentials: M.D..
How much does John Wu, M.D. prescribe under Medicare Part D? ▼
In 2023, John Wu, M.D. wrote 1,983 Medicare Part D claims totaling $284K in drug costs for 313 beneficiaries.
Where is John Wu, M.D. located? ▼
John Wu, M.D. is located at 813 FOUNDERS PARK DR E, Springdale, AR, 72762. Phone: (479) 463-2440.
What is John Wu, M.D.'s NPI number? ▼
John Wu, M.D.'s National Provider Identifier (NPI) is 1700852399, issued on 02/24/2006.
Does John Wu, M.D. prescribe opioids? ▼
Yes, John Wu, M.D. had 27 opioid claims in 2023 with an opioid prescribing rate of 1.4%.
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 John Wu, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, John Wu, M.D.'s most frequently prescribed drugs include Furosemide, Carvedilol, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Wu, M.D. accept Medicare? ▼
John Wu, M.D. appears in CMS Medicare data with 1,983 Part D claims and 313 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Wu, M.D.'s credentials? ▼
John Wu, M.D.'s NPI is 1700852399 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.
- 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.