2026 NPPES data Nurse Practitioner NPI 1134840101 NP
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KARISSA BUCK, NP

Nurse Practitioner in OWATONNA, Minnesota. 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
6K
Medicare Part D claims · 783 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KARISSA BUCK, NP filed 6,041 Medicare Part D claims in 2023 as a Nurse Practitioner in OWATONNA, Minnesota, prescribing 89% generic.

6K
Part D claims, 2023
89%
generic prescribing

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.

KARISSA BUCK, NP's Medicare Part D volume vs every U.S. prescriber

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

6,041 Top 5% higher than 95% 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

What does the federal data show about KARISSA BUCK, NP?

Quality data not reported

NPI registry status

Active

Issued 09/08/2022

NPI 1134840101

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

6,041 457% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

Specialty distribution in Minnesota

How Nurse Practitioner compares to other specialties among Minnesota providers

Minnesota providers

Nurse Practitioner share within Minnesota

1. Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nurse Practitioner share within Minnesota

Specialty board-certification context

Estimated specialty board-certified rate — Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nurse Practitioner) — 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).

KARISSA BUCK, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 2200 NW 26TH ST, OWATONNA, MN, 55060, with a listed phone of (507) 456-2180. NPI 1134840101 was issued on 09/08/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BUCK 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 6,041 prescription claims written by this provider, covering 783 Medicare beneficiaries and totaling roughly $662K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 1.6%. 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.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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

2200 NW 26TH ST
OWATONNA, MN 55060

Provider Details

NPI 1134840101
Specialty Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 09/08/2022

Hospital and facility affiliations

Facilities where KARISSA BUCK, NP 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.

MAYO CLINIC HEALTH SYSTEM-SOUTHEAST MINNESOTA REGION
ROCHESTER, MN

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

KARISSA BUCK, NP — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 6,041 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.

6,041
Total Claims
$662K
Total Drug Cost
783
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,677
Total Day Supply
361,237
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$546K
Generic Drug Cost
$111K
Opioid Claims
99 (1.6% rate)
Antibiotic Claims
120

Patient Demographics

Average Patient Age
76.5 years
Avg HCC Risk Score
1.74
Gender Split
57% female / 43% male
Age Distribution
<65: 57, 65-74: 264, 75-84: 308, 85+: 154

Top Prescribed Drugs (Medicare Part D)

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

What KARISSA BUCK, NP 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
Lisinopril
280
Atorvastatin Calcium
222
Amlodipine Besylate
217
Levothyroxine Sodium
193
Simvastatin
174
Omeprazole
171
Gabapentin
169
Metoprolol Succinate
168
Metoprolol Tartrate
158
Furosemide
138

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

Nurse Practitioner Overview

How KARISSA BUCK, NP fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

KARISSA BUCK, NP's 6,041 claims are above the specialty average of 1,084.

Nearby Nurse Practitioner Providers in Minnesota

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

Compare Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is KARISSA BUCK, NP's specialty?
KARISSA BUCK, NP specializes in Nurse Practitioner and practices in OWATONNA, Minnesota. Credentials: NP.
How much does KARISSA BUCK, NP prescribe under Medicare Part D?
In 2023, KARISSA BUCK, NP wrote 6,041 Medicare Part D claims totaling $662K in drug costs for 783 beneficiaries.
Where is KARISSA BUCK, NP located?
KARISSA BUCK, NP is located at 2200 NW 26TH ST, OWATONNA, MN, 55060. Phone: (507) 456-2180.
What is KARISSA BUCK, NP's NPI number?
KARISSA BUCK, NP's National Provider Identifier (NPI) is 1134840101, issued on 09/08/2022.
Does KARISSA BUCK, NP prescribe more brand-name or generic drugs?
KARISSA BUCK, NP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $546K in brand drug costs.
Does KARISSA BUCK, NP prescribe opioids?
Yes, KARISSA BUCK, NP had 99 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does KARISSA BUCK, NP prescribe most often?
Based on 2023 Medicare Part D data, KARISSA BUCK, NP's most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KARISSA BUCK, NP accept Medicare?
KARISSA BUCK, NP appears in CMS Medicare data with 6,041 Part D claims and 783 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KARISSA BUCK, NP's credentials?
KARISSA BUCK, NP's NPI is 1134840101 with credentials NP. 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