2026 NPPES data Orthopaedic Surgery Physician NPI 1477556405 M.D.
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CHARLES LINSENMEYER, M.D.

Orthopaedic Surgery Physician in SAINT CHARLES, Missouri. 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.
Industry payments
$125
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CHARLES LINSENMEYER, M.D. is a Orthopaedic Surgery Physician ([object Object]) practicing in SAINT CHARLES, Missouri . Industry payments of $125 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CHARLES LINSENMEYER, M.D. specializes in Orthopaedic Surgery Physician and practices in SAINT CHARLES, Missouri, 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)

CHARLES LINSENMEYER, 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).

CHARLES LINSENMEYER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/23/2005

NPI 1477556405

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Specialty distribution in Missouri

How Orthopaedic Surgery Physician compares to other specialties among Missouri providers

Missouri providers

Orthopaedic Surgery Physician share within Missouri

1. Orthopaedic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Orthopaedic Surgery Physician share within Missouri

Specialty board-certification context

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

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

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

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

CHARLES LINSENMEYER, M.D. is a Orthopaedic Surgery Physician provider practicing in SAINT CHARLES, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1477556405. 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.

CHARLES LINSENMEYER, M.D. appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding M.D. credentials at 400 1ST CAPITOL DR, SAINT CHARLES, MO, 63301, with a listed phone of (636) 946-7050. NPI 1477556405 was issued on 05/23/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LINSENMEYER 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 Orthopaedic Surgery Physician providers operate outside Part D entirely.

Orthopaedic Surgery Physician is a mid-sized specialty nationwide, with 25,781 enrolled providers across 56 states and an average of 324 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

400 1ST CAPITOL DR
SAINT CHARLES, MO 63301

Provider Details

NPI 1477556405
Specialty Orthopaedic Surgery Physician
Credentials M.D.
Gender Male
NPI Issued 05/23/2005

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 CHARLES LINSENMEYER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$125

Largest payer

Phathom Pharmaceuticals, 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.

Orthopaedic Surgery Physician Overview

How CHARLES LINSENMEYER, M.D. fits within the Orthopaedic Surgery Physician landscape nationally.

25,781
Orthopaedic Surgery Physician Providers in US
56
States with Orthopaedic Surgery Physician
324
Avg Claims per Provider

Nearby Orthopaedic Surgery Physician Providers in Missouri

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

Compare Orthopaedic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHARLES LINSENMEYER, M.D.'s specialty?
CHARLES LINSENMEYER, M.D. specializes in Orthopaedic Surgery Physician and practices in SAINT CHARLES, Missouri. Credentials: M.D..
Where is CHARLES LINSENMEYER, M.D. located?
CHARLES LINSENMEYER, M.D. is located at 400 1ST CAPITOL DR, SAINT CHARLES, MO, 63301. Phone: (636) 946-7050.
What is CHARLES LINSENMEYER, M.D.'s NPI number?
CHARLES LINSENMEYER, M.D.'s National Provider Identifier (NPI) is 1477556405, issued on 05/23/2005.
How many Orthopaedic Surgery Physician providers are there in the US?
There are 25,781 Orthopaedic Surgery Physician providers across 56 states in the US. The average Orthopaedic Surgery Physician provider writes 324 Medicare Part D claims per year.
Does CHARLES LINSENMEYER, M.D. accept Medicare?
CHARLES LINSENMEYER, 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 CHARLES LINSENMEYER, M.D.'s credentials?
CHARLES LINSENMEYER, M.D.'s NPI is 1477556405 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