2026 NPPES data Undersea and Hyperbaric Medicine (Emergency Medicine) Physician NPI 1679519391 MD MBA FACEP CPE
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KEITH BUTLER, MD MBA FACEP CPE

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician in GILBERT, 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
36
Medicare Part D claims · 28 beneficiaries · Undersea and Hyperbaric Medicine (Emergency Medicine) Physician avg: 367

What the federal data shows

KEITH BUTLER, MD MBA FACEP CPE filed 36 Medicare Part D claims in 2023 as a Undersea and Hyperbaric Medicine (Emergency Medicine) Physician in GILBERT, Arizona.

36
Part D claims, 2023

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.

KEITH BUTLER, MD MBA FACEP CPE's Medicare Part D volume vs every U.S. prescriber

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

36 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 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)

KEITH BUTLER, MD MBA FACEP CPE 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 KEITH BUTLER, MD MBA FACEP CPE?

Quality data not reported

NPI registry status

Active

Issued 06/21/2006

NPI 1679519391

Primary specialty

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician

Rare

201 US NPIs in this specialty

Medicare Part D claims

36 90% vs specialty avg

2023 prescription claims

Specialty avg: 367

Specialty distribution in Arizona

How Undersea and Hyperbaric Medicine (Emergency Medicine) Physician compares to other specialties among Arizona providers

Arizona providers

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician share within Arizona

1. Undersea and Hyperbaric Medicine (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician share within Arizona

Specialty board-certification context

Estimated specialty board-certified rate — Undersea and Hyperbaric Medicine (Emergency Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Undersea and Hyperbaric Medicine (Emergency Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Undersea and Hyperbaric Medicine (Emergency Medicine) 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).

KEITH BUTLER, MD MBA FACEP CPE appears in the CMS NPPES registry as a Undersea and Hyperbaric Medicine (Emergency Medicine) Physician provider holding MD MBA FACEP CPE credentials at 70 S VAL VISA, GILBERT, AZ, 85296, with a listed phone of (877) 336-6898. NPI 1679519391 was issued on 06/21/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BUTLER 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 36 prescription claims written by this provider, covering 28 Medicare beneficiaries and totaling roughly $416 in drug spend. 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.

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician is a narrow specialty nationwide, with 201 enrolled providers across 43 states and an average of 367 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

70 S VAL VISA
GILBERT, AZ 85296

Provider Details

NPI 1679519391
Specialty Undersea and Hyperbaric Medicine (Emergency Medicine) Physician
Credentials MD MBA FACEP CPE
Gender Male
NPI Issued 06/21/2006

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

36
Total Claims
$416
Total Drug Cost
28
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
36
Total Day Supply
247
Generic Drug Cost
$383

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
1.22

Undersea and Hyperbaric Medicine (Emergency Medicine) Physician Overview

How KEITH BUTLER, MD MBA FACEP CPE fits within the Undersea and Hyperbaric Medicine (Emergency Medicine) Physician landscape nationally.

201
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician Providers in US
43
States with Undersea and Hyperbaric Medicine (Emergency Medicine) Physician
367
Avg Claims per Provider

KEITH BUTLER, MD MBA FACEP CPE's 36 claims are below the specialty average of 367.

Nearby Undersea and Hyperbaric Medicine (Emergency Medicine) Physician Providers in Arizona

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

Compare Undersea and Hyperbaric Medicine (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KEITH BUTLER, MD MBA FACEP CPE's specialty?
KEITH BUTLER, MD MBA FACEP CPE specializes in Undersea and Hyperbaric Medicine (Emergency Medicine) Physician and practices in GILBERT, Arizona. Credentials: MD MBA FACEP CPE.
How much does KEITH BUTLER, MD MBA FACEP CPE prescribe under Medicare Part D?
In 2023, KEITH BUTLER, MD MBA FACEP CPE wrote 36 Medicare Part D claims totaling $416 in drug costs for 28 beneficiaries.
Where is KEITH BUTLER, MD MBA FACEP CPE located?
KEITH BUTLER, MD MBA FACEP CPE is located at 70 S VAL VISA, GILBERT, AZ, 85296. Phone: (877) 336-6898.
What is KEITH BUTLER, MD MBA FACEP CPE's NPI number?
KEITH BUTLER, MD MBA FACEP CPE's National Provider Identifier (NPI) is 1679519391, issued on 06/21/2006.
How many Undersea and Hyperbaric Medicine (Emergency Medicine) Physician providers are there in the US?
There are 201 Undersea and Hyperbaric Medicine (Emergency Medicine) Physician providers across 43 states in the US. The average Undersea and Hyperbaric Medicine (Emergency Medicine) Physician provider writes 367 Medicare Part D claims per year.
Does KEITH BUTLER, MD MBA FACEP CPE accept Medicare?
KEITH BUTLER, MD MBA FACEP CPE appears in CMS Medicare data with 36 Part D claims and 28 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KEITH BUTLER, MD MBA FACEP CPE's credentials?
KEITH BUTLER, MD MBA FACEP CPE's NPI is 1679519391 with credentials MD MBA FACEP CPE. 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