NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1649387788 NP
Verify on CMS → Brian Buchner, NP
Nurse Practitioner in Honolulu, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 87,700 in Nurse Practitioner, 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
321
Medicare Part D claims · 226 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.2/100
▲ 3 pts above national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Brian Buchner, NP reported a CMS MIPS final score of 86.2/100 - above the 83.1 national average - and filed 321 Medicare Part D claims in 2023.
- 86.2/100
- MIPS score · +3 vs avg
- 321
- Part D claims, 2023
- 83%
- 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.
Brian Buchner, NP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
86 Top 48% higher than 52% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Brian Buchner, NP sits
This provider among nurse practitioner peers
Across the 13,476 nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Brian Buchner, NP writes more Part D claims than 46% of them and scores higher on MIPS quality than 52% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one nurse practitioner peer from a representative sample of 60; the gold marker is Brian Buchner, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Brian Buchner, NP?
High performer (top quartile)Primary specialty
Nurse Practitioner
Medicare Part D claims
321 70% vs specialty avg
MIPS final score
86.2/100 3.1 pts vs avg
Specialty distribution in Hawaii
How Nurse Practitioner compares to other specialties among Hawaii providers
Medicare quality performance, MIPS
Brian Buchner, NP's 2023 MIPS final score plotted against the Nurse Practitioner national average
- MIPS Final Score
- 86.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Nurse Practitioner) - 86.2/100 vs national avg 83.1
How MIPS and board certification work
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).
Brian Buchner, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 888 S KING ST, Honolulu, HI, 96813, with a listed phone of (808) 522-4232. NPI 1649387788 was issued on 08/24/2006.
Medicare Part D records for calendar year 2023 show 321 prescription claims written by this provider, covering 226 Medicare beneficiaries and totaling roughly $22K in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 70.1%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.2/100 for the 2023 performance year (Quality 80.3, Cost 73.7), compared with the national average of 83.1.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 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
Provider Details
| NPI | 1649387788 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | NP |
| Gender | Male |
| NPI Issued | 08/24/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.203
Final Score
Avg: 83.1
80.286
Quality
73.7239
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Brian Buchner, 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.
Straub Clinic And Hospital
★★★★☆ 4/5
Honolulu, HI
Acute Care Hospitals
CMS CCN: 120022
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
Brian Buchner, NP - brand share 17.0%
Nurse Practitioner average
17% brand-name claims vs 83% generic, on 321 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.
321
Total Claims
$22K
Total Drug Cost
226
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 321
- Total Day Supply
- 2,801
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $21K
- Generic Drug Cost
- $1K
- Opioid Claims
- 225 (70.1% rate)
- Antibiotic Claims
- 22
Patient Demographics
- Average Patient Age
- 74.0 years
- Avg HCC Risk Score
- 0.82
- Gender Split
- 58% female / 42% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Brian Buchner, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
118 claims
- Tramadol Hcl
Tramadol Hcl
104 claims
- Eliquis 30
Eliquis
30 claims
- Xarelto 22
Xarelto
22 claims
- Cefadroxil 12
Cefadroxil
12 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 118 |
| Tramadol Hcl | 104 |
| Eliquis Apixaban | 30 |
| Xarelto Rivaroxaban | 22 |
| Cefadroxil | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Brian Buchner, NP fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Brian Buchner, NP's 321 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Buchner.
Dr. Brianna Aberilla
APRN
Honolulu, HI
Dr. Jessica Ackerman
FNP
Honolulu, HI
Heather Akins
Kailua Kona, HI
Dr. Leilani Aldrich
APRN
Hilo, HI
Dr. Anitalei Alexio
APRN
Aiea, HI
Compare Nurse Practitioner 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 Hawaii medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Nurse Practitioner 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Brian Buchner, NP's specialty? ▼
Brian Buchner, NP specializes in Nurse Practitioner and practices in Honolulu, Hawaii. Credentials: NP.
How much does Brian Buchner, NP prescribe under Medicare Part D? ▼
In 2023, Brian Buchner, NP wrote 321 Medicare Part D claims totaling $22K in drug costs for 226 beneficiaries.
What is Brian Buchner, NP's Medicare quality score? ▼
Brian Buchner, NP has a CMS MIPS Final Score of 86.2/100 (Quality: 80.3, Cost: 73.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Brian Buchner, NP located? ▼
Brian Buchner, NP is located at 888 S KING ST, Honolulu, HI, 96813. Phone: (808) 522-4232.
What is Brian Buchner, NP's NPI number? ▼
Brian Buchner, NP's National Provider Identifier (NPI) is 1649387788, issued on 08/24/2006.
Does Brian Buchner, NP prescribe more brand-name or generic drugs? ▼
Brian Buchner, NP's prescribing is 17% brand-name and 83% generic drugs by claim count, with $21K in brand drug costs.
Does Brian Buchner, NP prescribe opioids? ▼
Yes, Brian Buchner, NP had 225 opioid claims in 2023 with an opioid prescribing rate of 70.1%.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 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 Brian Buchner, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Brian Buchner, NP's most frequently prescribed drugs include Oxycodone Hcl, Tramadol Hcl, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brian Buchner, NP accept Medicare? ▼
Brian Buchner, NP appears in CMS Medicare data with 321 Part D claims and 226 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brian Buchner, NP's credentials? ▼
Brian Buchner, NP's NPI is 1649387788 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
View source datasets and methodology notes
- 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.