2026 NPPES data Orthopaedic Surgery Physician NPI 1558748871 MD
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SHALEN KOUK, MD

Orthopaedic Surgery Physician in SAINT LOUIS, 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.
Prescribing volume
488
Medicare Part D claims · 187 beneficiaries · Orthopaedic Surgery Physician avg: 324
Industry payments
$1.6K
16 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SHALEN KOUK, MD is a Orthopaedic Surgery Physician ([object Object]) practicing in SAINT LOUIS, Missouri with a Medicare Part D prescribing footprint of 488 claims across 187 beneficiaries . Industry payments of $1.6K across 16 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SHALEN KOUK, MD filed 488 Medicare Part D claims in 2023 across SAINT LOUIS, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SHALEN KOUK, 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).

SHALEN KOUK, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 05/06/2015

NPI 1558748871

Primary specialty

Orthopaedic Surgery Physician

Mid-sized

25,781 US NPIs in this specialty

Medicare Part D claims

488 51% vs specialty avg

2023 prescription claims

Specialty avg: 324

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).

SHALEN KOUK, MD is a Orthopaedic Surgery Physician provider practicing in SAINT LOUIS, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1558748871. 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.

SHALEN KOUK, MD appears in the CMS NPPES registry as a Orthopaedic Surgery Physician provider holding MD credentials at 12700 SOUTHFORK RD STE 100, SAINT LOUIS, MO, 63128, with a listed phone of (314) 543-5284. NPI 1558748871 was issued on 05/06/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOUK 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 488 prescription claims written by this provider, covering 187 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 20.9%. 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.

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

12700 SOUTHFORK RD STE 100
SAINT LOUIS, MO 63128

Provider Details

NPI 1558748871
Specialty Orthopaedic Surgery Physician
Credentials MD
Gender Male
NPI Issued 05/06/2015

Hospital and facility affiliations

Facilities where SHALEN KOUK, 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.

MERCY CLINIC SURGICAL SPECIALISTS LLC
SAINT LOUIS, MO

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

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 SHALEN KOUK, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.6K

Largest payer

Arthrex, 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.

Medicare Part D Prescribing Data

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

488
Total Claims
$2K
Total Drug Cost
187
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
530
Total Day Supply
10,461
Brand Drug Cost
$0
Generic Drug Cost
$2K
Opioid Claims
102 (20.9% rate)
Antibiotic Claims
12

Patient Demographics

Average Patient Age
70.2 years
Avg HCC Risk Score
1.12
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Meloxicam
231
Naproxen
60
Tramadol Hcl
36
Oxycodone Hcl
34
Diclofenac Sodium
30
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
21
Ondansetron Odt
Ondansetron
13
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
11

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

Orthopaedic Surgery Physician Overview

How SHALEN KOUK, MD 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

SHALEN KOUK, MD's 488 claims are above the specialty average of 324.

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 KOUK.

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

Frequently Asked Questions

What is SHALEN KOUK, MD's specialty?
SHALEN KOUK, MD specializes in Orthopaedic Surgery Physician and practices in SAINT LOUIS, Missouri. Credentials: MD.
How much does SHALEN KOUK, MD prescribe under Medicare Part D?
In 2023, SHALEN KOUK, MD wrote 488 Medicare Part D claims totaling $2K in drug costs for 187 beneficiaries.
Where is SHALEN KOUK, MD located?
SHALEN KOUK, MD is located at 12700 SOUTHFORK RD STE 100, SAINT LOUIS, MO, 63128. Phone: (314) 543-5284.
What is SHALEN KOUK, MD's NPI number?
SHALEN KOUK, MD's National Provider Identifier (NPI) is 1558748871, issued on 05/06/2015.
Does SHALEN KOUK, MD prescribe opioids?
Yes, SHALEN KOUK, MD had 102 opioid claims in 2023 with an opioid prescribing rate of 20.9%.
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.
What drugs does SHALEN KOUK, MD prescribe most often?
Based on 2023 Medicare Part D data, SHALEN KOUK, MD's most frequently prescribed drugs include Meloxicam, Naproxen, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHALEN KOUK, MD accept Medicare?
SHALEN KOUK, MD appears in CMS Medicare data with 488 Part D claims and 187 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHALEN KOUK, MD's credentials?
SHALEN KOUK, MD's NPI is 1558748871 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