2026 NPPES data Anesthesiology Physician NPI 1932638533 MD
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GARETH GARDINER, MD

Anesthesiology Physician in MISSOULA, Montana. 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
25
Medicare Part D claims · Anesthesiology Physician avg: 860
What the federal data reveals: GARETH GARDINER, MD is a Anesthesiology Physician ([object Object]) practicing in MISSOULA, Montana with a Medicare Part D prescribing footprint of 25 claims .

What stands out: GARETH GARDINER, MD filed 25 Medicare Part D claims in 2023 across MISSOULA, Montana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

GARETH GARDINER, 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).

GARETH GARDINER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/07/2017

NPI 1932638533

Primary specialty

Anesthesiology Physician

High-volume

56,398 US NPIs in this specialty

Medicare Part D claims

25 97% vs specialty avg

2023 prescription claims

Specialty avg: 860

Specialty distribution in Montana

How Anesthesiology Physician compares to other specialties among Montana providers

Montana providers

Anesthesiology Physician share within Montana

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Anesthesiology 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).

GARETH GARDINER, MD is a Anesthesiology Physician provider practicing in MISSOULA, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1932638533. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

GARETH GARDINER, MD appears in the CMS NPPES registry as a Anesthesiology Physician provider holding MD credentials at 2825 STOCKYARD RD STE I-200, MISSOULA, MT, 59808, with a listed phone of (406) 728-8420. NPI 1932638533 was issued on 06/07/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GARDINER 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 25 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $1K 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.

Anesthesiology Physician is a high-volume specialty nationwide, with 56,398 enrolled providers across 56 states and an average of 860 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

2825 STOCKYARD RD STE I-200
MISSOULA, MT 59808

Provider Details

NPI 1932638533
Specialty Anesthesiology Physician
Credentials MD
Gender Male
NPI Issued 06/07/2017

Hospital and facility affiliations

Facilities where GARETH GARDINER, 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.

MISSOULA ANESTHESIOLOGY PC
MISSOULA, MT

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

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

25
Total Claims
$1K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
25
Total Day Supply
750
Brand Drug Cost
$0
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
53.5 years
Avg HCC Risk Score
1.80

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Lamotrigine
13
Ziprasidone Hcl
12

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

Anesthesiology Physician Overview

How GARETH GARDINER, MD fits within the Anesthesiology Physician landscape nationally.

56,398
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider

GARETH GARDINER, MD's 25 claims are below the specialty average of 860.

Nearby Anesthesiology Physician Providers in Montana

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

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

Frequently Asked Questions

What is GARETH GARDINER, MD's specialty?
GARETH GARDINER, MD specializes in Anesthesiology Physician and practices in MISSOULA, Montana. Credentials: MD.
How much does GARETH GARDINER, MD prescribe under Medicare Part D?
In 2023, GARETH GARDINER, MD wrote 25 Medicare Part D claims totaling $1K in drug costs for N/A beneficiaries.
Where is GARETH GARDINER, MD located?
GARETH GARDINER, MD is located at 2825 STOCKYARD RD STE I-200, MISSOULA, MT, 59808. Phone: (406) 728-8420.
What is GARETH GARDINER, MD's NPI number?
GARETH GARDINER, MD's National Provider Identifier (NPI) is 1932638533, issued on 06/07/2017.
How many Anesthesiology Physician providers are there in the US?
There are 56,398 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does GARETH GARDINER, MD prescribe most often?
Based on 2023 Medicare Part D data, GARETH GARDINER, MD's most frequently prescribed drugs include Lamotrigine, Ziprasidone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GARETH GARDINER, MD accept Medicare?
GARETH GARDINER, MD appears in CMS Medicare data with 25 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GARETH GARDINER, MD's credentials?
GARETH GARDINER, MD's NPI is 1932638533 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