2026 NPPES data Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician NPI 1821100322 M.D.
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ROCH BOYER, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in KALISPELL, 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.
What the federal data reveals: ROCH BOYER, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician ([object Object]) practicing in KALISPELL, Montana .

What stands out: ROCH BOYER, M.D. specializes in Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician and practices in KALISPELL, Montana, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ROCH BOYER, M.D. 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).

ROCH BOYER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 08/31/2006

NPI 1821100322

Primary specialty

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician

Mid-sized

5,062 US NPIs in this specialty

Specialty distribution in Montana

How Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician compares to other specialties among Montana providers

Montana providers

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician share within Montana

1. Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician share within Montana

Specialty board-certification context

Estimated specialty board-certified rate — Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician ABMS/AOA estimate

Est. board-certified rate (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Thoracic Surgery (Cardiothoracic Vascular Surgery) 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).

ROCH BOYER, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider practicing in KALISPELL, Montana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1821100322. 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.

ROCH BOYER, M.D. appears in the CMS NPPES registry as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider holding M.D. credentials at 1333 SURGICAL SERVICES WAY, KALISPELL, MT, 59901, with a listed phone of (406) 752-5000. NPI 1821100322 was issued on 08/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BOYER 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers operate outside Part D entirely.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician is a mid-sized specialty nationwide, with 5,062 enrolled providers across 52 states and an average of 128 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

1333 SURGICAL SERVICES WAY
KALISPELL, MT 59901

Provider Details

NPI 1821100322
Specialty Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Credentials M.D.
Gender Male
NPI Issued 08/31/2006

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Overview

How ROCH BOYER, M.D. fits within the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician landscape nationally.

5,062
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in US
52
States with Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
128
Avg Claims per Provider

Nearby Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in Montana

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

Compare Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ROCH BOYER, M.D.'s specialty?
ROCH BOYER, M.D. specializes in Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician and practices in KALISPELL, Montana. Credentials: M.D..
Where is ROCH BOYER, M.D. located?
ROCH BOYER, M.D. is located at 1333 SURGICAL SERVICES WAY, KALISPELL, MT, 59901. Phone: (406) 752-5000.
What is ROCH BOYER, M.D.'s NPI number?
ROCH BOYER, M.D.'s National Provider Identifier (NPI) is 1821100322, issued on 08/31/2006.
How many Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers are there in the US?
There are 5,062 Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers across 52 states in the US. The average Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider writes 128 Medicare Part D claims per year.
Does ROCH BOYER, M.D. accept Medicare?
ROCH BOYER, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ROCH BOYER, M.D.'s credentials?
ROCH BOYER, M.D.'s NPI is 1821100322 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

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.
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