2026 NPPES data Nurse Practitioner NPI 1629036181 ARNP
Verify on CMS →

SUSAN CHAPMAN, ARNP

Nurse Practitioner in WEST ALLIS, 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
281
Medicare Part D claims · 19 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$763.73
46 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SUSAN CHAPMAN, ARNP filed 281 Medicare Part D claims in 2023 as a Nurse Practitioner in WEST ALLIS, Wisconsin, prescribing 88% generic.

281
Part D claims, 2023
88%
generic prescribing
$763.73
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.

SUSAN CHAPMAN, ARNP's Medicare Part D volume vs every U.S. prescriber

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

281 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 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 SUSAN CHAPMAN, ARNP?

Quality data not reported

NPI registry status

Active

Issued 05/03/2006

NPI 1629036181

Primary specialty

Nurse Practitioner

High-volume

87,227 US NPIs in this specialty

Medicare Part D claims

281 74% vs specialty avg

2023 prescription claims

Specialty avg: 1,084

Specialty distribution in Wisconsin

How Nurse Practitioner compares to other specialties among Wisconsin providers

Wisconsin providers

Nurse Practitioner share within Wisconsin

1. Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Nurse Practitioner share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Nurse Practitioner) — 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).

SUSAN CHAPMAN, ARNP is a Nurse Practitioner provider practicing in WEST ALLIS, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: ARNP. NPI: 1629036181. 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.

SUSAN CHAPMAN, ARNP appears in the CMS NPPES registry as a Nurse Practitioner provider holding ARNP credentials at 2448 S 102ND ST STE 180, WEST ALLIS, WI, 53227, with a listed phone of (414) 895-4765. NPI 1629036181 was issued on 05/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAPMAN 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 281 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $44K in drug spend, split 12% brand-name and 88% 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.

Nurse Practitioner is a high-volume specialty nationwide, with 87,227 enrolled providers across 56 states and an average of 1,084 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

2448 S 102ND ST STE 180
WEST ALLIS, WI 53227

Provider Details

NPI 1629036181
Specialty Nurse Practitioner
Credentials ARNP
Gender Female
NPI Issued 05/03/2006

Hospital and facility affiliations

Facilities where SUSAN CHAPMAN, ARNP 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.

CORNERSTONE COUNSELING SERVICES INC
FRANKLIN, WI
TMS CLINICAL SERVICES OF WISCONSIN SC
WEST ALLIS, 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 SUSAN CHAPMAN, ARNP. Source: openpaymentsdata.cms.gov.

Total received

$764

Largest payer

Alkermes, Inc.

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.

Brand vs generic prescribing mix · Typical

SUSAN CHAPMAN, ARNP — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 281 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.

281
Total Claims
$44K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
376
Total Day Supply
10,836
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$39K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
61.6 years
Avg HCC Risk Score
0.71

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Bupropion Xl
Bupropion Hcl
29
Desvenlafaxine Succinate Er
Desvenlafaxine Succinate
22
Lamotrigine
17
Aripiprazole
15
Clonazepam
15
Gabapentin
15
Clonidine Hcl
14
Buspirone Hcl
12
Vraylar
Cariprazine Hcl
12

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

Nurse Practitioner Overview

How SUSAN CHAPMAN, ARNP fits within the Nurse Practitioner landscape nationally.

87,227
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider

SUSAN CHAPMAN, ARNP's 281 claims are below the specialty average of 1,084.

Nearby Nurse Practitioner Providers in Wisconsin

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

Compare Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SUSAN CHAPMAN, ARNP's specialty?
SUSAN CHAPMAN, ARNP specializes in Nurse Practitioner and practices in WEST ALLIS, Wisconsin. Credentials: ARNP.
How much does SUSAN CHAPMAN, ARNP prescribe under Medicare Part D?
In 2023, SUSAN CHAPMAN, ARNP wrote 281 Medicare Part D claims totaling $44K in drug costs for 19 beneficiaries.
Where is SUSAN CHAPMAN, ARNP located?
SUSAN CHAPMAN, ARNP is located at 2448 S 102ND ST STE 180, WEST ALLIS, WI, 53227. Phone: (414) 895-4765.
What is SUSAN CHAPMAN, ARNP's NPI number?
SUSAN CHAPMAN, ARNP's National Provider Identifier (NPI) is 1629036181, issued on 05/03/2006.
Does SUSAN CHAPMAN, ARNP prescribe more brand-name or generic drugs?
SUSAN CHAPMAN, ARNP's prescribing is 12% brand-name and 88% generic drugs by claim count, with $39K in brand drug costs.
How many Nurse Practitioner providers are there in the US?
There are 87,227 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does SUSAN CHAPMAN, ARNP prescribe most often?
Based on 2023 Medicare Part D data, SUSAN CHAPMAN, ARNP's most frequently prescribed drugs include Bupropion Xl, Desvenlafaxine Succinate Er, Lamotrigine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SUSAN CHAPMAN, ARNP accept Medicare?
SUSAN CHAPMAN, ARNP appears in CMS Medicare data with 281 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUSAN CHAPMAN, ARNP's credentials?
SUSAN CHAPMAN, ARNP's NPI is 1629036181 with credentials ARNP. 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