2026 NPPES data Nephrology Physician NPI 1427142470 MD
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Nelson Chow, MD

Nephrology Physician in Spokane, Washington. 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
1K
Medicare Part D claims · 138 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$174.51
3 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Nelson Chow, MD filed 1,095 Medicare Part D claims in 2023 as a Nephrology Physician in Spokane, Washington, prescribing 91% generic.

1K
Part D claims, 2023
91%
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.

Nelson Chow, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

1,095 Top 24% higher than 76% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

Nelson Chow, 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 Nelson Chow, MD?

Quality data not reported

NPI registry status

Active

Issued 10/03/2006

NPI 1427142470

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

1,095 25% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Washington

How Nephrology Physician compares to other specialties among Washington providers

Washington providers

Largest specialties in Washington (% of in-state providers)

Mental Health Counselor - 8.6%Mental Health Counselor8.6%Massage Therapist - 6.5%Massage Therapist6.5%Counselor - 5.7%Counselor5.7%Behavior Technician - 4.5%Behavior Technician4.5%Pharmacist - 4%Pharmacist4%Physical Therapist - 3.6%Physical Therapist3.6%Nephrology Physician - 0.1%Nephrology Physician0.1%
Largest specialties in Washington (% of in-state 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:

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).

Nelson Chow, MD appears in the CMS NPPES registry as a Nephrology Physician provider holding MD credentials at 105 W 8TH AVE, Spokane, WA, 99204, with a listed phone of (509) 340-0930. NPI 1427142470 was issued on 10/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Chow most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,095 prescription claims written by this provider, covering 138 Medicare beneficiaries and totaling roughly $176K in drug spend, split 9% brand-name and 91% generic by claim count. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

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

105 W 8TH AVE
Spokane, WA 99204

Provider Details

NPI 1427142470
Specialty Nephrology Physician
Credentials MD
Gender Male
NPI Issued 10/03/2006

Hospital and facility affiliations

Facilities where Nelson Chow, 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.

Providence Health And Services Washington
Spokane, WA

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 Nelson Chow, MD. Source: openpaymentsdata.cms.gov.

Total received

$175

Largest payer

Travere Therapeutics, 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.

License & disciplinary context - Washington WMC 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Nelson Chow, MD. To verify Nelson Chow, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases

WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

Nelson Chow, MD - brand share 9.0%
Nephrology Physician average

9% brand-name claims vs 91% generic, on 1,095 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.

1,095
Total Claims
$176K
Total Drug Cost
138
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,259
Total Day Supply
65,407
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$111K
Generic Drug Cost
$65K
Antibiotic Claims
33

Patient Demographics

Average Patient Age
69.2 years
Avg HCC Risk Score
6.16
Gender Split
49% female / 51% male
Age Distribution
<65: 40, 65-74: 52, 75-84: 34, 85+: 12

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Nelson Chow, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Sevelamer Carbonate
133
Amlodipine Besylate
106
Calcitriol
105
Furosemide
81
Losartan Potassium
65
Potassium Chloride
56
Lisinopril
54
Lidocaine-Prilocaine
Lidocaine/Prilocaine
50
Allopurinol
30
Clonidine
28

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Nephrology Physician Overview

How Nelson Chow, 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

Nelson Chow, MD's 1,095 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Washington

Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Chow.

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 Washington 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.

Frequently Asked Questions

What is Nelson Chow, MD's specialty?
Nelson Chow, MD specializes in Nephrology Physician and practices in Spokane, Washington. Credentials: MD.
How much does Nelson Chow, MD prescribe under Medicare Part D?
In 2023, Nelson Chow, MD wrote 1,095 Medicare Part D claims totaling $176K in drug costs for 138 beneficiaries.
Where is Nelson Chow, MD located?
Nelson Chow, MD is located at 105 W 8TH AVE, Spokane, WA, 99204. Phone: (509) 340-0930.
What is Nelson Chow, MD's NPI number?
Nelson Chow, MD's National Provider Identifier (NPI) is 1427142470, issued on 10/03/2006.
Does Nelson Chow, MD prescribe more brand-name or generic drugs?
Nelson Chow, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $111K 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 Nelson Chow, MD prescribe most often?
Based on 2023 Medicare Part D data, Nelson Chow, MD's most frequently prescribed drugs include Sevelamer Carbonate, Amlodipine Besylate, Calcitriol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nelson Chow, MD accept Medicare?
Nelson Chow, MD appears in CMS Medicare data with 1,095 Part D claims and 138 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nelson Chow, MD's credentials?
Nelson Chow, MD's NPI is 1427142470 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

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.