NPI registry status
Active
2026 NPPES data Pain Management Registered Nurse NPI 1417608464
Verify on CMS → Monica Karlen
Pain Management Registered Nurse in Boston, 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 220 in Pain Management 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.
What the federal data shows
Monica Karlen is a Pain Management Registered Nurse in Boston, Massachusetts, listed in the federal CMS National Provider Identifier registry.
- #384
- Pain Management Registered Nurse rank among Massachusetts specialties
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.
CMS NPPES provider registry desk
NPI 1417608464 · Pain Management Registered Nurse
NPI-10 · ENUM-RECENT · TAX-TRACE · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1417608464
- ENUM-RECENT 2022
- TAX-TRACE 220
- RX-NONE No Part D
- BOOK-THIN 7 in Massachusetts
- PHOTO-ENUM Guy Orozco · 2022
What does the federal data show about Monica Karlen?
Quality data not reportedPrimary specialty
Pain Management Registered Nurse
Specialty distribution in Massachusetts
How Pain Management Registered Nurse compares to other specialties among Massachusetts providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Pain Management Registered Nurse. Verify directly:
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).
Practice Address
Provider Details
| NPI | 1417608464 |
|---|---|
| Specialty | Pain Management Registered Nurse |
| Gender | Female |
| NPI Issued | 01/11/2022 |
Hospital and facility affiliations
Facilities where Monica Karlen 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.
Massachusetts General Physicians Organization Inc
Boston, 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 Monica Karlen. To verify Monica Karlen'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.
More Pain Management Registered Nurse in MA →
All providers in Massachusetts →
Compare specialties →
Pain Management Registered Nurse Overview
How Monica Karlen fits within the Pain Management Registered Nurse landscape nationally.
220
Pain Management Registered Nurse Providers in US
43
States with Pain Management Registered Nurse
1,375
Avg Claims per Provider
Nationwide Pain Management Registered Nurse peers with similar MIPS or enrollment year
Two federal-record peer sets for Karlen, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Pain Management Registered Nurse Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Karlen.
One of 7 Pain Management Registered Nurse providers enrolled in Massachusetts, 5 are shown here.
Dr. Erika Bourne
R.N., C.M.T.P.T.
Watertown, MA
Dr. Sarah Depradine
RN
Winchester, MA
Dr. Debra Klezmer
LMT,RN,C,CRRN
Randolph, MA
Dr. Carolyn Metivier
APRN
Boston, MA
Dr. Hannah Morton
PNP
Boston, MA
Compare Pain Management Registered Nurse nationally: see state-by-state distribution →
Frequently Asked Questions
What is Monica Karlen's specialty? ▼
Monica Karlen specializes in Pain Management Registered Nurse and practices in Boston, Massachusetts.
Where is Monica Karlen located? ▼
Monica Karlen is located at 55 FRUIT ST, Boston, MA, 02114. Phone: (617) 726-2000.
What is Monica Karlen's NPI number? ▼
Monica Karlen's National Provider Identifier (NPI) is 1417608464, issued on 01/11/2022.
How many Pain Management Registered Nurse providers are there in the US? ▼
There are 220 Pain Management Registered Nurse providers across 43 states in the US. The average Pain Management Registered Nurse provider writes 1,375 Medicare Part D claims per year.
Does Monica Karlen accept Medicare? ▼
Monica Karlen appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Monica Karlen's credentials? ▼
Monica Karlen's NPI is 1417608464. 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.
- 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
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.