NPI registry status
Active
2026 NPPES data Pediatric Nephrology Physician NPI 1548434780 M.D.
Verify on CMS → Rachel Engen, M.D.
Pediatric Nephrology Physician in Madison, 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 724 in Pediatric Nephrology 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
64
Medicare Part D claims · Pediatric Nephrology Physician avg: 97
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Rachel Engen, M.D. filed 64 Medicare Part D claims in 2023 as a Pediatric Nephrology Physician in Madison, Wisconsin.
- 64
- Part D claims, 2023
- 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.
Rachel Engen, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
64 0th percentile higher than 0% 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
✓
Board certification likely (heuristic, not verified)
Rachel Engen, M.D. 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 Rachel Engen, M.D.?
Quality data not reportedPrimary specialty
Pediatric Nephrology Physician
Medicare Part D claims
64 34% vs specialty avg
Specialty distribution in Wisconsin
How Pediatric Nephrology 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 Pediatric Nephrology 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).
Rachel Engen, M.D. appears in the CMS NPPES registry as a Pediatric Nephrology Physician provider holding M.D. credentials at 600 HIGHLAND AVE, Madison, WI, 53792, with a listed phone of (608) 263-6420. NPI 1548434780 was issued on 04/18/2008.
Medicare Part D records for calendar year 2023 show 64 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $21K in drug spend.
Pediatric Nephrology Physician is a narrow specialty nationwide, with 724 enrolled providers across 50 states and an average of 97 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 | 1548434780 |
|---|---|
| Specialty | Pediatric Nephrology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 04/18/2008 |
Hospital and facility affiliations
Facilities where Rachel Engen, M.D. 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.
University OF Wisconsin Medical Foundation Inc
Madison, 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).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
64
Total Claims
$21K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 73
- Total Day Supply
- 2,020
- Generic Drug Cost
- $16K
- Antibiotic Claims
- 20
Patient Demographics
- Average Patient Age
- 12.3 years
- Avg HCC Risk Score
- 3.83
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Rachel Engen, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sulfamethoxazole-T…
Sulfamethoxazole-Trimethoprim
17 claims
- Valganciclovir Hcl
Valganciclovir Hcl
16 claims
- Losartan Potassium
Losartan Potassium
14 claims
| Drug | Claims |
|---|---|
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 17 |
| Valganciclovir Hcl | 16 |
| Losartan Potassium | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pediatric Nephrology Physician Overview
How Rachel Engen, M.D. fits within the Pediatric Nephrology Physician landscape nationally.
724
Pediatric Nephrology Physician Providers in US
50
States with Pediatric Nephrology Physician
97
Avg Claims per Provider
Rachel Engen, M.D.'s 64 claims are below the specialty average of 97.
Nearby Pediatric Nephrology Physician Providers in Wisconsin
Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as Engen.
Dr. Sharon Bartosh
MD
Madison, WI
Dr. Victoria Besser
M.D.
Milwaukee, WI
Dr. Ellen Cody
MD
Milwaukee, WI
Dr. Jennifer Jetton
M.D.
Milwaukee, WI
Dr. Cristin Kaspar
M.D.
Milwaukee, WI
Compare Pediatric Nephrology 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 Pediatric Nephrology 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is Rachel Engen, M.D.'s specialty? ▼
Rachel Engen, M.D. specializes in Pediatric Nephrology Physician and practices in Madison, Wisconsin. Credentials: M.D..
How much does Rachel Engen, M.D. prescribe under Medicare Part D? ▼
In 2023, Rachel Engen, M.D. wrote 64 Medicare Part D claims totaling $21K in drug costs for N/A beneficiaries.
Where is Rachel Engen, M.D. located? ▼
Rachel Engen, M.D. is located at 600 HIGHLAND AVE, Madison, WI, 53792. Phone: (608) 263-6420.
What is Rachel Engen, M.D.'s NPI number? ▼
Rachel Engen, M.D.'s National Provider Identifier (NPI) is 1548434780, issued on 04/18/2008.
How many Pediatric Nephrology Physician providers are there in the US? ▼
There are 724 Pediatric Nephrology Physician providers across 50 states in the US. The average Pediatric Nephrology Physician provider writes 97 Medicare Part D claims per year.
What drugs does Rachel Engen, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Rachel Engen, M.D.'s most frequently prescribed drugs include Sulfamethoxazole-Trimethoprim, Valganciclovir Hcl, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rachel Engen, M.D. accept Medicare? ▼
Rachel Engen, M.D. appears in CMS Medicare data with 64 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rachel Engen, M.D.'s credentials? ▼
Rachel Engen, M.D.'s NPI is 1548434780 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.
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.