2026 NPPES data Pediatric Nephrology Physician NPI 1548434780 M.D.
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RACHEL ENGEN, M.D.

Pediatric Nephrology Physician in MADISON, 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
64
Medicare Part D claims · Pediatric Nephrology Physician avg: 97

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

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 reported

NPI registry status

Active

Issued 04/18/2008

NPI 1548434780

Primary specialty

Pediatric Nephrology Physician

Niche

723 US NPIs in this specialty

Medicare Part D claims

64 34% vs specialty avg

2023 prescription claims

Specialty avg: 97

Specialty distribution in Wisconsin

How Pediatric Nephrology Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Pediatric Nephrology Physician share within Wisconsin

1. Pediatric Nephrology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pediatric Nephrology Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Pediatric Nephrology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pediatric Nephrology Physician ABMS/AOA estimate

Est. board-certified rate (Pediatric Nephrology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pediatric Nephrology 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).

RACHEL ENGEN, M.D. is a Pediatric Nephrology Physician provider practicing in MADISON, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1548434780. 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.

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ENGEN 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 64 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $21K in drug spend. 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.

Pediatric Nephrology Physician is a narrow specialty nationwide, with 723 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

600 HIGHLAND AVE
MADISON, WI 53792

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.

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.

723
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.

Compare Pediatric Nephrology Physician nationally: see state-by-state distribution →

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 723 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

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