2026 NPPES data Nephrology Physician NPI 1457337636 D.O.
Verify on CMS →

DANIEL WALTON, D.O.

Nephrology Physician in SCOTTSDALE, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
475
Medicare Part D claims · 112 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$24.6
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

DANIEL WALTON, D.O. filed 475 Medicare Part D claims in 2023 as a Nephrology Physician in SCOTTSDALE, Arizona, prescribing 95% generic.

475
Part D claims, 2023
95%
generic prescribing
$24.6
industry payments (Sunshine Act)

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.

DANIEL WALTON, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

475 Top 38% higher than 62% 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%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 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. 2,000–2,200: 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-eligible specialty (heuristic — not verified)

DANIEL WALTON, D.O. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about DANIEL WALTON, D.O.?

Quality data not reported

NPI registry status

Active

Issued 12/19/2005

NPI 1457337636

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

475 67% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Arizona

How Nephrology Physician compares to other specialties among Arizona providers

Arizona providers

Nephrology Physician share within Arizona

1. Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nephrology Physician share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — Nephrology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nephrology Physician ABMS/AOA estimate

Est. board-certified rate (Nephrology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nephrology Physician) — ABMS / AOA estimate

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).

DANIEL WALTON, D.O. appears in the CMS NPPES registry as a Nephrology Physician provider holding D.O. credentials at 8901 E MOUNTAIN VIEW RD, SCOTTSDALE, AZ, 85258, with a listed phone of (480) 696-4020. NPI 1457337636 was issued on 12/19/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WALTON 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 475 prescription claims written by this provider, covering 112 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 5% brand-name and 95% 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

8901 E MOUNTAIN VIEW RD
SCOTTSDALE, AZ 85258

Provider Details

NPI 1457337636
Specialty Nephrology Physician
Credentials D.O.
Gender Male
NPI Issued 12/19/2005

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 DANIEL WALTON, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$25

Largest payer

Boston Scientific Corporation

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 · Generic-heavy

DANIEL WALTON, D.O. — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 475 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.

475
Total Claims
$1.1M
Total Drug Cost
112
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,160
Total Day Supply
34,298
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$1.0M
Generic Drug Cost
$76K
Antibiotic Claims
22

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
2.15
Gender Split
51% female / 49% male

Top Prescribed Drugs (Medicare Part D)

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

What DANIEL WALTON, D.O. 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
Furosemide
40
Losartan Potassium
35
Calcitriol
34
Famotidine
33
Amlodipine Besylate
32
Prednisone
29
Allopurinol
23
Carvedilol
19
Chlorthalidone
16
Tamsulosin Hcl
16

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

Nephrology Physician Overview

How DANIEL WALTON, D.O. 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

DANIEL WALTON, D.O.'s 475 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Arizona

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

Compare Nephrology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DANIEL WALTON, D.O.'s specialty?
DANIEL WALTON, D.O. specializes in Nephrology Physician and practices in SCOTTSDALE, Arizona. Credentials: D.O..
How much does DANIEL WALTON, D.O. prescribe under Medicare Part D?
In 2023, DANIEL WALTON, D.O. wrote 475 Medicare Part D claims totaling $1.1M in drug costs for 112 beneficiaries.
Where is DANIEL WALTON, D.O. located?
DANIEL WALTON, D.O. is located at 8901 E MOUNTAIN VIEW RD, SCOTTSDALE, AZ, 85258. Phone: (480) 696-4020.
What is DANIEL WALTON, D.O.'s NPI number?
DANIEL WALTON, D.O.'s National Provider Identifier (NPI) is 1457337636, issued on 12/19/2005.
Does DANIEL WALTON, D.O. prescribe more brand-name or generic drugs?
DANIEL WALTON, D.O.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $1.0M 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 DANIEL WALTON, D.O. prescribe most often?
Based on 2023 Medicare Part D data, DANIEL WALTON, D.O.'s most frequently prescribed drugs include Furosemide, Losartan Potassium, Calcitriol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DANIEL WALTON, D.O. accept Medicare?
DANIEL WALTON, D.O. appears in CMS Medicare data with 475 Part D claims and 112 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DANIEL WALTON, D.O.'s credentials?
DANIEL WALTON, D.O.'s NPI is 1457337636 with credentials D.O.. 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