NPI registry status
Active
2026 NPPES data Undersea and Hyperbaric Medicine (Preventive Medicine) Physician NPI 1285186510 MD
Verify on CMS → Brett Leiknes, MD
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in Two Rivers, Wisconsin.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 243 in Undersea and Hyperbaric Medicine (Preventive 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
707
Medicare Part D claims · 103 beneficiaries · Undersea and Hyperbaric Medicine (Preventive Medicine) Physician avg: 522
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Brett Leiknes, MD filed 707 Medicare Part D claims in 2023 as an Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in Two Rivers, Wisconsin, prescribing 78% generic.
- 707
- Part D claims, 2023
- 78%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥71st
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Brett Leiknes, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1285186510), first enumerated 11/03/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 707 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1285186510 · Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
NPI-10 · ENUM-MID · TAX-TRACE · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1285186510
- ENUM-MID 2016
- TAX-TRACE 243
- RX-LIGHT 707
- BOOK-THIN 12 in Wisconsin
- PHOTO-ENUM Dallas Wright · 2016
Brett Leiknes, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
707 ≥ 71st percentile 71% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Brett Leiknes, 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).
What does the federal data show about Brett Leiknes, MD?
Quality data not reportedPrimary specialty
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
Medicare Part D claims
707 35% vs specialty avg
Specialty distribution in Wisconsin
How Undersea and Hyperbaric Medicine (Preventive Medicine) Physician compares to other specialties among Wisconsin providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Undersea and Hyperbaric Medicine (Preventive Medicine) Physician. Verify directly:
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).
Practice Address
Provider Details
| NPI | 1285186510 |
|---|---|
| Specialty | Undersea and Hyperbaric Medicine (Preventive Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/03/2016 |
Hospital and facility affiliations
Facilities where Brett Leiknes, 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.
Aurora Medical Group, Inc.
Manitowoc, WI
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
Brett Leiknes, MD - brand share 22.0%
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician average
22% brand-name claims vs 78% generic, on 707 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.
707
Total Claims
$43K
Total Drug Cost
103
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 709
- Total Day Supply
- 14,338
- Brand vs Generic
- 22% brand / 78% generic
- Brand Drug Cost
- $29K
- Generic Drug Cost
- $14K
- Opioid Claims
- 12 (1.7% rate)
- Antibiotic Claims
- 141
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 2.77
- Gender Split
- 39% female / 61% male
- Age Distribution
- <65: 18, 65-74: 41, 75-84: 31, 85+: 13
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Brett Leiknes, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Doxycycline Hyclate
Doxycycline Hyclate
55 claims
- Levothyroxine Sodium
Levothyroxine Sodium
52 claims
- Furosemide
Furosemide
39 claims
- Metoprolol Succinate
Metoprolol Succinate
29 claims
- Pantoprazole Sodium
Pantoprazole Sodium
23 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
22 claims
- Hydrocortisone 20
Hydrocortisone
20 claims
- Atorvastatin Calcium 19
Atorvastatin Calcium
19 claims
| Drug | Claims |
|---|---|
| Doxycycline Hyclate | 55 |
| Levothyroxine Sodium | 52 |
| Furosemide | 39 |
| Metoprolol Succinate | 29 |
| Pantoprazole Sodium | 23 |
| Triamcinolone Acetonide | 22 |
| Hydrocortisone | 20 |
| Atorvastatin Calcium | 19 |
| Levofloxacin | 18 |
| Sertraline Hcl | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in WI →
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Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Overview
How Brett Leiknes, MD fits within the Undersea and Hyperbaric Medicine (Preventive Medicine) Physician landscape nationally.
243
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Providers in US
42
States with Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
522
Avg Claims per Provider
Brett Leiknes, MD's 707 claims are above the specialty average of 522.
Nationwide Undersea and Hyperbaric Medicine (Preventive Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Leiknes, both outside Wisconsin so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Leiknes.
One of 12 Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers enrolled in Wisconsin, 5 are shown here.
Frequently Asked Questions
What is Brett Leiknes, MD's specialty? ▼
Brett Leiknes, MD specializes in Undersea and Hyperbaric Medicine (Preventive Medicine) Physician and practices in Two Rivers, Wisconsin. Credentials: MD.
How much does Brett Leiknes, MD prescribe under Medicare Part D? ▼
In 2023, Brett Leiknes, MD wrote 707 Medicare Part D claims totaling $43K in drug costs for 103 beneficiaries.
Where is Brett Leiknes, MD located? ▼
Brett Leiknes, MD is located at 5000 MEMORIAL DR, Two Rivers, WI, 54241. Phone: (920) 794-5000.
What is Brett Leiknes, MD's NPI number? ▼
Brett Leiknes, MD's National Provider Identifier (NPI) is 1285186510, issued on 11/03/2016.
Does Brett Leiknes, MD prescribe more brand-name or generic drugs? ▼
Brett Leiknes, MD's prescribing is 22% brand-name and 78% generic drugs by claim count, with $29K in brand drug costs.
Does Brett Leiknes, MD prescribe opioids? ▼
Yes, Brett Leiknes, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 1.7%.
How many Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers are there in the US? ▼
There are 243 Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers across 42 states in the US. The average Undersea and Hyperbaric Medicine (Preventive Medicine) Physician provider writes 522 Medicare Part D claims per year.
What drugs does Brett Leiknes, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Brett Leiknes, MD's most frequently prescribed drugs include Doxycycline Hyclate, Levothyroxine Sodium, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brett Leiknes, MD accept Medicare? ▼
Brett Leiknes, MD appears in CMS Medicare data with 707 Part D claims and 103 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brett Leiknes, MD's credentials? ▼
Brett Leiknes, MD's NPI is 1285186510 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
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.
- 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
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.