2026 NPPES data Medical Physician Assistant NPI 1427122902 PA-C
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MELISSA JENNERJOHN, PA-C

Medical Physician Assistant 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
107
Medicare Part D claims · 88 beneficiaries · Medical Physician Assistant avg: 1K
Industry payments
$137.73
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MELISSA JENNERJOHN, PA-C filed 107 Medicare Part D claims in 2023 as a Medical Physician Assistant in MADISON, Wisconsin.

107
Part D claims, 2023
$137.73
industry payments (Sunshine Act)

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.

MELISSA JENNERJOHN, PA-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

107 35th percentile higher than 35% 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

What does the federal data show about MELISSA JENNERJOHN, PA-C?

Quality data not reported

NPI registry status

Active

Issued 11/17/2006

NPI 1427122902

Primary specialty

Medical Physician Assistant

Mid-sized

40,527 US NPIs in this specialty

Medicare Part D claims

107 90% vs specialty avg

2023 prescription claims

Specialty avg: 1,077

Specialty distribution in Wisconsin

How Medical Physician Assistant compares to other specialties among Wisconsin providers

Wisconsin providers

Medical Physician Assistant share within Wisconsin

1. Medical Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Physician Assistant share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Medical Physician Assistant (ABMS / AOA reference)

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

Est. board-certified rate (Medical Physician Assistant) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Physician Assistant) — 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).

MELISSA JENNERJOHN, PA-C appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PA-C credentials at 1821 S STOUGHTON RD, MADISON, WI, 53716, with a listed phone of (608) 260-6000. NPI 1427122902 was issued on 11/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what JENNERJOHN 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 107 prescription claims written by this provider, covering 88 Medicare beneficiaries and totaling roughly $692 in drug spend, with an opioid prescribing rate of 77.6%. 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.

Medical Physician Assistant is a mid-sized specialty nationwide, with 40,527 enrolled providers across 55 states and an average of 1,077 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

1821 S STOUGHTON RD
MADISON, WI 53716

Provider Details

NPI 1427122902
Specialty Medical Physician Assistant
Credentials PA-C
Gender Female
NPI Issued 11/17/2006

Hospital and facility affiliations

Facilities where MELISSA JENNERJOHN, PA-C 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.

DEAN HEALTH SYSTEMS INC
BEAVER DAM, WI
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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MELISSA JENNERJOHN, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$138

Largest payer

Stryker Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

107
Total Claims
$692
Total Drug Cost
88
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
107
Total Day Supply
514
Brand Drug Cost
$0
Generic Drug Cost
$692
Opioid Claims
83 (77.6% rate)

Patient Demographics

Average Patient Age
71.4 years
Avg HCC Risk Score
1.14
Gender Split
74% female / 26% 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
45
Oxycodone Hcl
18

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Medical Physician Assistant Overview

How MELISSA JENNERJOHN, PA-C fits within the Medical Physician Assistant landscape nationally.

40,527
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider

MELISSA JENNERJOHN, PA-C's 107 claims are below the specialty average of 1,077.

Nearby Medical Physician Assistant Providers in Wisconsin

Other clinicians with the same primary specialty enrolled in Wisconsin, drawn from the same CMS NPPES roster as JENNERJOHN.

Compare Medical Physician Assistant nationally: see state-by-state distribution →

Frequently Asked Questions

What is MELISSA JENNERJOHN, PA-C's specialty?
MELISSA JENNERJOHN, PA-C specializes in Medical Physician Assistant and practices in MADISON, Wisconsin. Credentials: PA-C.
How much does MELISSA JENNERJOHN, PA-C prescribe under Medicare Part D?
In 2023, MELISSA JENNERJOHN, PA-C wrote 107 Medicare Part D claims totaling $692 in drug costs for 88 beneficiaries.
Where is MELISSA JENNERJOHN, PA-C located?
MELISSA JENNERJOHN, PA-C is located at 1821 S STOUGHTON RD, MADISON, WI, 53716. Phone: (608) 260-6000.
What is MELISSA JENNERJOHN, PA-C's NPI number?
MELISSA JENNERJOHN, PA-C's National Provider Identifier (NPI) is 1427122902, issued on 11/17/2006.
Does MELISSA JENNERJOHN, PA-C prescribe opioids?
Yes, MELISSA JENNERJOHN, PA-C had 83 opioid claims in 2023 with an opioid prescribing rate of 77.6%.
How many Medical Physician Assistant providers are there in the US?
There are 40,527 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does MELISSA JENNERJOHN, PA-C prescribe most often?
Based on 2023 Medicare Part D data, MELISSA JENNERJOHN, PA-C's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELISSA JENNERJOHN, PA-C accept Medicare?
MELISSA JENNERJOHN, PA-C appears in CMS Medicare data with 107 Part D claims and 88 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELISSA JENNERJOHN, PA-C's credentials?
MELISSA JENNERJOHN, PA-C's NPI is 1427122902 with credentials PA-C. 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