2026 NPPES data Colon & Rectal Surgery Physician NPI 1508895335 M.D.
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RUDOLPH KLUIBER, M.D.

Colon & Rectal Surgery Physician in MILWAUKEE, Wisconsin. 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
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
What the federal data reveals: RUDOLPH KLUIBER, M.D. is a Colon & Rectal Surgery Physician ([object Object]) practicing in MILWAUKEE, Wisconsin with a Medicare Part D prescribing footprint of 171 claims across 142 beneficiaries — 44% brand-name prescribing .

What stands out: RUDOLPH KLUIBER, M.D. filed 171 Medicare Part D claims in 2023 across MILWAUKEE, Wisconsin. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

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).

RUDOLPH KLUIBER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/02/2006

NPI 1508895335

Primary specialty

Colon & Rectal Surgery Physician

Niche

1,608 US NPIs in this specialty

Medicare Part D claims

171 13% vs specialty avg

2023 prescription claims

Specialty avg: 196

Specialty distribution in Wisconsin

How Colon & Rectal Surgery Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Colon & Rectal Surgery Physician share within Wisconsin

1. Colon & Rectal Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Colon & Rectal Surgery Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Colon & Rectal Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Colon & Rectal Surgery Physician ABMS/AOA estimate

Est. board-certified rate (Colon & Rectal Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Colon & Rectal Surgery 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).

RUDOLPH KLUIBER, M.D. is a Colon & Rectal Surgery Physician provider practicing in MILWAUKEE, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1508895335. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KLUIBER 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 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. 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.

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

3003 W GOOD HOPE RD
MILWAUKEE, WI 53209

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%
Specialty average (est.)

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.

Compare Colon & Rectal Surgery Physician nationally: see state-by-state distribution →

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

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