NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1811941164 MD
Verify on CMS → Robert Krippendorf, MD
Internal Medicine Physician in Waukesha, 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 172,737 in Internal 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
13K
Medicare Part D claims · 867 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
82.4/100
▼ 1 pts below national avg 83.1 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Robert Krippendorf, MD reported a CMS MIPS final score of 82.4/100 - below the 83.1 national average - and filed 12,804 Medicare Part D claims in 2023.
- 82.4/100
- MIPS score · -1 vs avg
- 13K
- Part D claims, 2023
- 85%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Robert Krippendorf, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
82 39th percentile higher than 39% 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 Robert Krippendorf, MD sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Robert Krippendorf, MD writes more Part D claims than 95% of them and scores higher on MIPS quality than 39% - placing this provider in the high-volume, lower-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 internal medicine physician peer from a representative sample of 60; the gold marker is Robert Krippendorf, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Robert Krippendorf, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Robert Krippendorf, MD?
Near national averagePrimary specialty
Internal Medicine Physician
Medicare Part D claims
12,804 371% vs specialty avg
MIPS final score
82.4/100 0.7 pts vs avg
Specialty distribution in Wisconsin
How Internal Medicine Physician compares to other specialties among Wisconsin providers
Medicare quality performance, MIPS
Robert Krippendorf, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 82.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 82.4/100 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).
Robert Krippendorf, MD appears in the CMS NPPES registry as an Internal Medicine Physician provider holding MD credentials at N16W24131 RIVERWOOD DR, Waukesha, WI, 53188, with a listed phone of (262) 696-0808. NPI 1811941164 was issued on 05/20/2006.
Medicare Part D records for calendar year 2023 show 12,804 prescription claims written by this provider, covering 867 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 14% brand-name and 85% generic by claim count, with an opioid prescribing rate of 2.3%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 82.4/100 for the 2023 performance year (Quality 77.9, Cost 74.4), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1811941164 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/20/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
82.3961
Final Score
Avg: 83.1
77.8816
Quality
74.3833
Cost
81
Promoting Interoperability
Reporting: Group practice
Brand vs generic prescribing mix · Typical
Robert Krippendorf, MD - brand share 14.0%
Internal Medicine Physician average
14% brand-name claims vs 85% generic, on 12,804 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.
12,804
Total Claims
$1.2M
Total Drug Cost
867
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 27,194
- Total Day Supply
- 785,037
- Brand vs Generic
- 14% brand / 85% generic
- Brand Drug Cost
- $937K
- Generic Drug Cost
- $251K
- Opioid Claims
- 295 (2.3% rate)
- Antibiotic Claims
- 87
Patient Demographics
- Average Patient Age
- 74.2 years
- Avg HCC Risk Score
- 1.36
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 74, 65-74: 394, 75-84: 287, 85+: 112
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Robert Krippendorf, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
781 claims
- Levothyroxine Sodium
Levothyroxine Sodium
554 claims
- Amlodipine Besylate
Amlodipine Besylate
474 claims
- Lisinopril
Lisinopril
416 claims
- Pantoprazole Sodium
Pantoprazole Sodium
381 claims
- Pravastatin Sodium
Pravastatin Sodium
331 claims
- Losartan Potassium 303
Losartan Potassium
303 claims
- Omeprazole 298
Omeprazole
298 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 781 |
| Levothyroxine Sodium | 554 |
| Amlodipine Besylate | 474 |
| Lisinopril | 416 |
| Pantoprazole Sodium | 381 |
| Pravastatin Sodium | 331 |
| Losartan Potassium | 303 |
| Omeprazole | 298 |
| Simvastatin | 298 |
| Metoprolol Succinate | 287 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Robert Krippendorf, MD fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Robert Krippendorf, MD's 12,804 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Krippendorf.
Dr. Sheetal Aatrai
MD
Marshfield, WI
Dr. Ihab Abdalrahman
MD
Marshfield, WI
Dr. Khalid Abdelgadir
MD
Manitowoc, WI
Dr. Kareem Abdelhadi
MD
Rice Lake, WI
Dr. Mesfin Abdissa
MD
Milwaukee, WI
Compare Internal Medicine 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 Internal Medicine 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 Robert Krippendorf, MD's specialty? ▼
Robert Krippendorf, MD specializes in Internal Medicine Physician and practices in Waukesha, Wisconsin. Credentials: MD.
How much does Robert Krippendorf, MD prescribe under Medicare Part D? ▼
In 2023, Robert Krippendorf, MD wrote 12,804 Medicare Part D claims totaling $1.2M in drug costs for 867 beneficiaries.
What is Robert Krippendorf, MD's Medicare quality score? ▼
Robert Krippendorf, MD has a CMS MIPS Final Score of 82.4/100 (Quality: 77.9, Cost: 74.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Robert Krippendorf, MD located? ▼
Robert Krippendorf, MD is located at N16W24131 RIVERWOOD DR, Waukesha, WI, 53188. Phone: (262) 696-0808.
What is Robert Krippendorf, MD's NPI number? ▼
Robert Krippendorf, MD's National Provider Identifier (NPI) is 1811941164, issued on 05/20/2006.
Does Robert Krippendorf, MD prescribe more brand-name or generic drugs? ▼
Robert Krippendorf, MD's prescribing is 14% brand-name and 85% generic drugs by claim count, with $937K in brand drug costs.
Does Robert Krippendorf, MD prescribe opioids? ▼
Yes, Robert Krippendorf, MD had 295 opioid claims in 2023 with an opioid prescribing rate of 2.3%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Robert Krippendorf, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Robert Krippendorf, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Robert Krippendorf, MD accept Medicare? ▼
Robert Krippendorf, MD appears in CMS Medicare data with 12,804 Part D claims and 867 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Robert Krippendorf, MD's credentials? ▼
Robert Krippendorf, MD's NPI is 1811941164 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.
- 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
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.