2026 NPPES data Family Medicine Physician NPI 1013003755 MD
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Catherine Shirek, MD

Family Medicine Physician in Hettinger, North Dakota. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 147,640 in Family Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
5K
Medicare Part D claims · 367 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Catherine Shirek, MD filed 5,434 Medicare Part D claims in 2023 as a Family Medicine Physician in Hettinger, North Dakota, prescribing 87% generic.

5K
Part D claims, 2023
87%
generic prescribing
Likely
board-certified (heuristic)

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.

Catherine Shirek, MD's Medicare Part D volume vs every U.S. prescriber

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

5,434 Top 6% higher than 94% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 certification likely (heuristic — not verified)

Catherine Shirek, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Catherine Shirek, MD?

Quality data not reported

NPI registry status

Active

Issued 10/04/2006

NPI 1013003755

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

5,434 59% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in North Dakota

How Family Medicine Physician compares to other specialties among North Dakota providers

North Dakota providers

Largest specialties in North Dakota (% of in-state providers)

Personal Care Attendant — 7.3%Personal Care Attendant7.3%Case Manager/Care Coordinator — 6.4%Case Manager/Care Coordinator6.4%Physical Therapist — 4.7%Physical Therapist4.7%Speech-Language Pathologist — 4.6%Speech-Language Pathologist4.6%Registered Nurse — 4.2%Registered Nurse4.2%Social Worker — 4.1%Social Worker4.1%Family Medicine Physician — 2.8%Family Medicine Physician2.8%
Largest specialties in North Dakota (% of in-state providers)

Specialty board-certification context

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

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

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

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

Catherine Shirek, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1000 HIGHWAY 12, Hettinger, ND, 58639, with a listed phone of (701) 567-4561. NPI 1013003755 was issued on 10/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Shirek 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 5,434 prescription claims written by this provider, covering 367 Medicare beneficiaries and totaling roughly $328K in drug spend, split 12% brand-name and 87% generic by claim count, with an opioid prescribing rate of 5.8%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

1000 HIGHWAY 12
Hettinger, ND 58639

Provider Details

NPI 1013003755
Specialty Family Medicine Physician
Credentials MD
Gender Female
NPI Issued 10/04/2006

Hospital and facility affiliations

Facilities where Catherine Shirek, 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.

Omaha Therapy Inc
Dickinson, ND
West River Health Services
Hettinger, ND

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

Brand vs generic prescribing mix · Typical

Catherine Shirek, MD — brand share 12.0%
Family Medicine Physician average

12% brand-name claims vs 87% generic, on 5,434 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

5,434
Total Claims
$328K
Total Drug Cost
367
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,309
Total Day Supply
216,429
Brand vs Generic
12% brand / 87% generic
Brand Drug Cost
$244K
Generic Drug Cost
$84K
Opioid Claims
316 (5.8% rate)
Antibiotic Claims
84

Patient Demographics

Average Patient Age
75.4 years
Avg HCC Risk Score
1.01
Gender Split
72% female / 28% male
Age Distribution
<65: 20, 65-74: 158, 75-84: 123, 85+: 66

Top Prescribed Drugs (Medicare Part D)

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

What Catherine Shirek, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Levothyroxine Sodium
293
Rosuvastatin Calcium
208
Lisinopril
207
Atorvastatin Calcium
173
Hydrochlorothiazide
173
Amlodipine Besylate
156
Tramadol Hcl
155
Pantoprazole Sodium
154
Potassium Chloride
136
Losartan Potassium
134

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

Family Medicine Physician Overview

How Catherine Shirek, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

Catherine Shirek, MD's 5,434 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in North Dakota

Other clinicians with the same primary specialty enrolled in North Dakota, drawn from the same CMS NPPES roster as Shirek.

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the North Dakota medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Catherine Shirek, MD's specialty?
Catherine Shirek, MD specializes in Family Medicine Physician and practices in Hettinger, North Dakota. Credentials: MD.
How much does Catherine Shirek, MD prescribe under Medicare Part D?
In 2023, Catherine Shirek, MD wrote 5,434 Medicare Part D claims totaling $328K in drug costs for 367 beneficiaries.
Where is Catherine Shirek, MD located?
Catherine Shirek, MD is located at 1000 HIGHWAY 12, Hettinger, ND, 58639. Phone: (701) 567-4561.
What is Catherine Shirek, MD's NPI number?
Catherine Shirek, MD's National Provider Identifier (NPI) is 1013003755, issued on 10/04/2006.
Does Catherine Shirek, MD prescribe more brand-name or generic drugs?
Catherine Shirek, MD's prescribing is 12% brand-name and 87% generic drugs by claim count, with $244K in brand drug costs.
Does Catherine Shirek, MD prescribe opioids?
Yes, Catherine Shirek, MD had 316 opioid claims in 2023 with an opioid prescribing rate of 5.8%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Catherine Shirek, MD prescribe most often?
Based on 2023 Medicare Part D data, Catherine Shirek, MD's most frequently prescribed drugs include Levothyroxine Sodium, Rosuvastatin Calcium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Catherine Shirek, MD accept Medicare?
Catherine Shirek, MD appears in CMS Medicare data with 5,434 Part D claims and 367 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Catherine Shirek, MD's credentials?
Catherine Shirek, MD's NPI is 1013003755 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

Compiled from official public sources by the PlainDoctor editorial team.