2026 NPPES data Occupational Medicine Physician NPI 1295907210 MD
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MARGARET COOK-SHIMANEK, MD

Occupational Medicine Physician in BOISE, Idaho. 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
472
Medicare Part D claims · 453 beneficiaries · Occupational Medicine Physician avg: 605

What the federal data shows

MARGARET COOK-SHIMANEK, MD filed 472 Medicare Part D claims in 2023 as a Occupational Medicine Physician in BOISE, Idaho.

472
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.

MARGARET COOK-SHIMANEK, MD's Medicare Part D volume vs every U.S. prescriber

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

472 Top 38% higher than 62% of 1,370,886 prescribers

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

MARGARET COOK-SHIMANEK, MD 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 MARGARET COOK-SHIMANEK, MD?

Quality data not reported

NPI registry status

Active

Issued 03/31/2008

NPI 1295907210

Primary specialty

Occupational Medicine Physician

Niche

2,230 US NPIs in this specialty

Medicare Part D claims

472 22% vs specialty avg

2023 prescription claims

Specialty avg: 605

Specialty distribution in Idaho

How Occupational Medicine Physician compares to other specialties among Idaho providers

Idaho providers

Occupational Medicine Physician share within Idaho

1. Occupational Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Occupational Medicine Physician share within Idaho

Specialty board-certification context

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

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

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

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

MARGARET COOK-SHIMANEK, MD appears in the CMS NPPES registry as a Occupational Medicine Physician provider holding MD credentials at 6533 EMERALD STREET, BOISE, ID, 83704, with a listed phone of (208) 367-4197. NPI 1295907210 was issued on 03/31/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what COOK-SHIMANEK 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 472 prescription claims written by this provider, covering 453 Medicare beneficiaries and totaling roughly $42K 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.

Occupational Medicine Physician is a narrow specialty nationwide, with 2,230 enrolled providers across 52 states and an average of 605 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

6533 EMERALD STREET
BOISE, ID 83704

Provider Details

NPI 1295907210
Specialty Occupational Medicine Physician
Credentials MD
Gender Female
NPI Issued 03/31/2008

Medicare Part D Prescribing Data

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

472
Total Claims
$42K
Total Drug Cost
453
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
473
Total Day Supply
2,668
Generic Drug Cost
$38K

Patient Demographics

Average Patient Age
66.6 years
Avg HCC Risk Score
1.62
Gender Split
62% female / 38% male
Age Distribution
<65: 159, 65-74: 181, 75-84: 92, 85+: 21

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Naloxone Hcl
457

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

Occupational Medicine Physician Overview

How MARGARET COOK-SHIMANEK, MD fits within the Occupational Medicine Physician landscape nationally.

2,230
Occupational Medicine Physician Providers in US
52
States with Occupational Medicine Physician
605
Avg Claims per Provider

MARGARET COOK-SHIMANEK, MD's 472 claims are below the specialty average of 605.

Nearby Occupational Medicine Physician Providers in Idaho

Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as COOK-SHIMANEK.

Compare Occupational Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARGARET COOK-SHIMANEK, MD's specialty?
MARGARET COOK-SHIMANEK, MD specializes in Occupational Medicine Physician and practices in BOISE, Idaho. Credentials: MD.
How much does MARGARET COOK-SHIMANEK, MD prescribe under Medicare Part D?
In 2023, MARGARET COOK-SHIMANEK, MD wrote 472 Medicare Part D claims totaling $42K in drug costs for 453 beneficiaries.
Where is MARGARET COOK-SHIMANEK, MD located?
MARGARET COOK-SHIMANEK, MD is located at 6533 EMERALD STREET, BOISE, ID, 83704. Phone: (208) 367-4197.
What is MARGARET COOK-SHIMANEK, MD's NPI number?
MARGARET COOK-SHIMANEK, MD's National Provider Identifier (NPI) is 1295907210, issued on 03/31/2008.
How many Occupational Medicine Physician providers are there in the US?
There are 2,230 Occupational Medicine Physician providers across 52 states in the US. The average Occupational Medicine Physician provider writes 605 Medicare Part D claims per year.
What drugs does MARGARET COOK-SHIMANEK, MD prescribe most often?
Based on 2023 Medicare Part D data, MARGARET COOK-SHIMANEK, MD's most frequently prescribed drugs include Naloxone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARGARET COOK-SHIMANEK, MD accept Medicare?
MARGARET COOK-SHIMANEK, MD appears in CMS Medicare data with 472 Part D claims and 453 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARGARET COOK-SHIMANEK, MD's credentials?
MARGARET COOK-SHIMANEK, MD's NPI is 1295907210 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