2026 NPPES data Registered Nurse NPI 1639804933 APN-CNP
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JENNIFER CHAMBERLIN, APN-CNP

Registered Nurse in EVANSTON, Illinois. 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
59
Medicare Part D claims · 47 beneficiaries · Registered Nurse avg: 1K
MIPS score
93.0872/100
▲ 10 pts above national avg 83.1 · [object Object]

What the federal data shows

JENNIFER CHAMBERLIN, APN-CNP reported a CMS MIPS final score of 93.0872/100 — above the 83.1 national average — and filed 59 Medicare Part D claims in 2023.

93.0872/100
MIPS score · +10 vs avg
59
Part D claims, 2023

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.

JENNIFER CHAMBERLIN, APN-CNP's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

93 Top 29% higher than 71% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

What does the federal data show about JENNIFER CHAMBERLIN, APN-CNP?

High performer (top quartile)

NPI registry status

Active

Issued 07/20/2022

NPI 1639804933

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

59 94% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

MIPS final score

93.0872/100 9.987200000000001% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Illinois

How Registered Nurse compares to other specialties among Illinois providers

Illinois providers

Registered Nurse share within Illinois

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within Illinois

Medicare quality performance — MIPS

JENNIFER CHAMBERLIN, APN-CNP's 2023 MIPS final score plotted against the Registered Nurse national average

High performer (top quartile)
MIPS Final Score
93.0872/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Registered Nurse) — 93.0872/100 vs national avg 83.1

0%100%National avg83%93.1%
MIPS final score (Registered Nurse) — 93.0872/100 vs national avg 83.1

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).

JENNIFER CHAMBERLIN, APN-CNP appears in the CMS NPPES registry as a Registered Nurse provider holding APN-CNP credentials at 2650 RIDGE AVE, EVANSTON, IL, 60201, with a listed phone of (847) 570-2040. NPI 1639804933 was issued on 07/20/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAMBERLIN 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 59 prescription claims written by this provider, covering 47 Medicare beneficiaries and totaling roughly $2K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.0872/100 for the 2023 performance year (Quality 80.7919), compared with the national average of 83.1.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

2650 RIDGE AVE
EVANSTON, IL 60201

Provider Details

NPI 1639804933
Specialty Registered Nurse
Credentials APN-CNP
Gender Female
NPI Issued 07/20/2022

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

93.0872
Final Score
Avg: 83.1
80.7919
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where JENNIFER CHAMBERLIN, APN-CNP 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.

BLUEWATER EMERGENCY PARTNERS OF BRUNSWICK, LLC
CLAREMONT, NH

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Illinois IDFPR 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to JENNIFER CHAMBERLIN, APN-CNP. To verify JENNIFER CHAMBERLIN, APN-CNP's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

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

59
Total Claims
$2K
Total Drug Cost
47
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
59
Total Day Supply
662
Generic Drug Cost
$2K
Antibiotic Claims
23

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
1.66
Gender Split
60% female / 40% male

Registered Nurse Overview

How JENNIFER CHAMBERLIN, APN-CNP fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

JENNIFER CHAMBERLIN, APN-CNP's 59 claims are below the specialty average of 1,000.

Nearby Registered Nurse Providers in Illinois

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

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

Frequently Asked Questions

What is JENNIFER CHAMBERLIN, APN-CNP's specialty?
JENNIFER CHAMBERLIN, APN-CNP specializes in Registered Nurse and practices in EVANSTON, Illinois. Credentials: APN-CNP.
How much does JENNIFER CHAMBERLIN, APN-CNP prescribe under Medicare Part D?
In 2023, JENNIFER CHAMBERLIN, APN-CNP wrote 59 Medicare Part D claims totaling $2K in drug costs for 47 beneficiaries.
What is JENNIFER CHAMBERLIN, APN-CNP's Medicare quality score?
JENNIFER CHAMBERLIN, APN-CNP has a CMS MIPS Final Score of 93.0872/100 (Quality: 80.7919). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JENNIFER CHAMBERLIN, APN-CNP located?
JENNIFER CHAMBERLIN, APN-CNP is located at 2650 RIDGE AVE, EVANSTON, IL, 60201. Phone: (847) 570-2040.
What is JENNIFER CHAMBERLIN, APN-CNP's NPI number?
JENNIFER CHAMBERLIN, APN-CNP's National Provider Identifier (NPI) is 1639804933, issued on 07/20/2022.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
Does JENNIFER CHAMBERLIN, APN-CNP accept Medicare?
JENNIFER CHAMBERLIN, APN-CNP appears in CMS Medicare data with 59 Part D claims and 47 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNIFER CHAMBERLIN, APN-CNP's credentials?
JENNIFER CHAMBERLIN, APN-CNP's NPI is 1639804933 with credentials APN-CNP. 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.
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