NPI registry status
Active
2026 NPPES data Emergency Registered Nurse NPI 1912583147 CNP
Verify on CMS → Johnathan Chambers, CNP
Emergency Registered Nurse in Worcester, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,350 in Emergency Registered Nurse, 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
81
Medicare Part D claims · 60 beneficiaries · Emergency Registered Nurse avg: 710
MIPS score
97/100
▲ 14 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Johnathan Chambers, CNP reported a CMS MIPS final score of 97/100 - above the 83.1 national average - and filed 81 Medicare Part D claims in 2023.
- 97/100
- MIPS score · +14 vs avg
- 81
- 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.
Johnathan Chambers, CNP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
97 Top 15% higher than 85% of 477,587 scored providers
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
Where Johnathan Chambers, CNP sits
This provider among emergency registered nurse peers
Across the 149 emergency registered nurse providers who report both Medicare Part D prescribing and a MIPS quality score, Johnathan Chambers, CNP writes more Part D claims than 23% of them and scores higher on MIPS quality than 80% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one emergency registered nurse peer from a representative sample of 60; the gold marker is Johnathan Chambers, CNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Johnathan Chambers, CNP?
High performer (top quartile)Primary specialty
Emergency Registered Nurse
Medicare Part D claims
81 89% vs specialty avg
MIPS final score
97/100 13.9 pts vs avg
Specialty distribution in Massachusetts
How Emergency Registered Nurse compares to other specialties among Massachusetts providers
Medicare quality performance, MIPS
Johnathan Chambers, CNP's 2023 MIPS final score plotted against the Emergency Registered Nurse national average
- MIPS Final Score
- 97/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Emergency Registered Nurse) - 97/100 vs national avg 83.1
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).
Johnathan Chambers, CNP appears in the CMS NPPES registry as an Emergency Registered Nurse provider holding CNP credentials at 55 LAKE AVE N, Worcester, MA, 01655, with a listed phone of (508) 421-1400. NPI 1912583147 was issued on 03/18/2021.
Medicare Part D records for calendar year 2023 show 81 prescription claims written by this provider, covering 60 Medicare beneficiaries and totaling roughly $1K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97/100 for the 2023 performance year (Quality 78.1), compared with the national average of 83.1.
Emergency Registered Nurse is a narrow specialty nationwide, with 4,350 enrolled providers across 54 states and an average of 710 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 | 1912583147 |
|---|---|
| Specialty | Emergency Registered Nurse |
| Credentials | CNP |
| Gender | Male |
| NPI Issued | 03/18/2021 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.0218
Final Score
Avg: 83.1
78.0983
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Johnathan Chambers, 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.
Umass Memorial Medical Group Inc
Oxford, MA
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 - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Johnathan Chambers, CNP. To verify Johnathan Chambers, CNP's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts 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.
81
Total Claims
$1K
Total Drug Cost
60
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 82
- Total Day Supply
- 727
- Generic Drug Cost
- $985
- Antibiotic Claims
- 36
Patient Demographics
- Average Patient Age
- 66.0 years
- Avg HCC Risk Score
- 1.26
- Gender Split
- 65% female / 35% male
Emergency Registered Nurse Overview
How Johnathan Chambers, CNP fits within the Emergency Registered Nurse landscape nationally.
4,350
Emergency Registered Nurse Providers in US
54
States with Emergency Registered Nurse
710
Avg Claims per Provider
Johnathan Chambers, CNP's 81 claims are below the specialty average of 710.
Nearby Emergency Registered Nurse Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Chambers.
Tricia Alves
Beverly, MA
Dr. Alexa Anselmo
NP
Boston, MA
Dr. Monique Avila
FNP-C
North Easton, MA
Dr. Ashley Baldwin
APRN
Weston, MA
Caitlin Bigda
Belchertown, MA
Compare Emergency Registered Nurse 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 Massachusetts medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Emergency Registered Nurse 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.
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Frequently Asked Questions
What is Johnathan Chambers, CNP's specialty? ▼
Johnathan Chambers, CNP specializes in Emergency Registered Nurse and practices in Worcester, Massachusetts. Credentials: CNP.
How much does Johnathan Chambers, CNP prescribe under Medicare Part D? ▼
In 2023, Johnathan Chambers, CNP wrote 81 Medicare Part D claims totaling $1K in drug costs for 60 beneficiaries.
What is Johnathan Chambers, CNP's Medicare quality score? ▼
Johnathan Chambers, CNP has a CMS MIPS Final Score of 97/100 (Quality: 78.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Johnathan Chambers, CNP located? ▼
Johnathan Chambers, CNP is located at 55 LAKE AVE N, Worcester, MA, 01655. Phone: (508) 421-1400.
What is Johnathan Chambers, CNP's NPI number? ▼
Johnathan Chambers, CNP's National Provider Identifier (NPI) is 1912583147, issued on 03/18/2021.
How many Emergency Registered Nurse providers are there in the US? ▼
There are 4,350 Emergency Registered Nurse providers across 54 states in the US. The average Emergency Registered Nurse provider writes 710 Medicare Part D claims per year.
Does Johnathan Chambers, CNP accept Medicare? ▼
Johnathan Chambers, CNP appears in CMS Medicare data with 81 Part D claims and 60 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Johnathan Chambers, CNP's credentials? ▼
Johnathan Chambers, CNP's NPI is 1912583147 with credentials 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
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.
- 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
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.