NPI registry status
Active
2026 NPPES data Colon & Rectal Surgery Physician NPI 1508895335 M.D.
Verify on CMS → Rudolph Kluiber, M.D.
Colon & Rectal Surgery Physician in Milwaukee, 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 1,608 in Colon & Rectal Surgery 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
171
Medicare Part D claims · 142 beneficiaries · Colon & Rectal Surgery Physician avg: 196
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Rudolph Kluiber, M.D. filed 171 Medicare Part D claims in 2023 as a Colon & Rectal Surgery Physician in Milwaukee, Wisconsin, prescribing 56% generic.
- 171
- Part D claims, 2023
- 56%
- 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.
Rudolph Kluiber, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
171 35th percentile higher than 35% of 1,370,886 prescribers
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
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Board-eligible specialty (heuristic, not verified)
Rudolph Kluiber, M.D. 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 Rudolph Kluiber, M.D.?
Quality data not reportedPrimary specialty
Colon & Rectal Surgery Physician
Medicare Part D claims
171 13% vs specialty avg
Specialty distribution in Wisconsin
How Colon & Rectal Surgery 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 Colon & Rectal Surgery 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).
Rudolph Kluiber, M.D. appears in the CMS NPPES registry as a Colon & Rectal Surgery Physician provider holding M.D. credentials at 3003 W GOOD HOPE RD, Milwaukee, WI, 53209, with a listed phone of (414) 352-3100. NPI 1508895335 was issued on 07/02/2006.
Medicare Part D records for calendar year 2023 show 171 prescription claims written by this provider, covering 142 Medicare beneficiaries and totaling roughly $6K in drug spend, split 44% brand-name and 56% generic by claim count.
Colon & Rectal Surgery Physician is a narrow specialty nationwide, with 1,608 enrolled providers across 50 states and an average of 196 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 | 1508895335 |
|---|---|
| Specialty | Colon & Rectal Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/02/2006 |
Brand vs generic prescribing mix · Above average
Rudolph Kluiber, M.D. - brand share 44.0%
Colon & Rectal Surgery Physician average
44% brand-name claims vs 56% generic, on 171 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.
171
Total Claims
$6K
Total Drug Cost
142
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 181
- Total Day Supply
- 989
- Brand vs Generic
- 44% brand / 56% generic
- Brand Drug Cost
- $4K
- Generic Drug Cost
- $3K
- Antibiotic Claims
- 22
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 0.99
- Gender Split
- 47% female / 53% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Peg 3350-Electrolyte Sodium Chloride/Nahco3/Kcl/Peg | 107 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Colon & Rectal Surgery Physician Overview
How Rudolph Kluiber, M.D. fits within the Colon & Rectal Surgery Physician landscape nationally.
1,608
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider
Rudolph Kluiber, M.D.'s 171 claims are below the specialty average of 196.
Nearby Colon & Rectal Surgery Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Kluiber.
Dr. Constante Avecilla
MD
Neillsville, WI
Dr. Jed Calata
M.D.
Milwaukee, WI
Dr. Alexander Casella
M.D.
Green Bay, WI
Dr. Peter Falk
MD
Green Bay, WI
Dr. Eugene Foley
M.D.
Cross Plains, WI
Compare Colon & Rectal Surgery 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 Wisconsin medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Colon & Rectal Surgery 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.
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Frequently Asked Questions
What is Rudolph Kluiber, M.D.'s specialty? ▼
Rudolph Kluiber, M.D. specializes in Colon & Rectal Surgery Physician and practices in Milwaukee, Wisconsin. Credentials: M.D..
How much does Rudolph Kluiber, M.D. prescribe under Medicare Part D? ▼
In 2023, Rudolph Kluiber, M.D. wrote 171 Medicare Part D claims totaling $6K in drug costs for 142 beneficiaries.
Where is Rudolph Kluiber, M.D. located? ▼
Rudolph Kluiber, M.D. is located at 3003 W GOOD HOPE RD, Milwaukee, WI, 53209. Phone: (414) 352-3100.
What is Rudolph Kluiber, M.D.'s NPI number? ▼
Rudolph Kluiber, M.D.'s National Provider Identifier (NPI) is 1508895335, issued on 07/02/2006.
Does Rudolph Kluiber, M.D. prescribe more brand-name or generic drugs? ▼
Rudolph Kluiber, M.D.'s prescribing is 44% brand-name and 56% generic drugs by claim count, with $4K in brand drug costs.
How many Colon & Rectal Surgery Physician providers are there in the US? ▼
There are 1,608 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does Rudolph Kluiber, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Rudolph Kluiber, M.D.'s most frequently prescribed drugs include Peg 3350-Electrolyte. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rudolph Kluiber, M.D. accept Medicare? ▼
Rudolph Kluiber, M.D. appears in CMS Medicare data with 171 Part D claims and 142 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rudolph Kluiber, M.D.'s credentials? ▼
Rudolph Kluiber, M.D.'s NPI is 1508895335 with credentials M.D.. 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
Compiled from official public sources by the PlainDoctor editorial team.