NPI registry status
Active
2026 NPPES data Adult Psychiatric/Mental Health Registered Nurse NPI 1265783336 RNCS
Verify on CMS → Mary Dillon, RNCS
Adult Psychiatric/Mental Health 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 4,589 in Adult Psychiatric/Mental Health 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
28
Medicare Part D claims · Adult Psychiatric/Mental Health Registered Nurse avg: 1K
Generic prescribing
57%
generic claims · 43% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$44.6
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mary Dillon, RNCS filed 28 Medicare Part D claims in 2023 as a Adult Psychiatric/Mental Health Registered Nurse in Worcester, Massachusetts, prescribing 57% generic.
- 28
- Part D claims, 2023
- 57%
- generic prescribing
- $44.6
- 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.
Mary Dillon, RNCS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
28 0th percentile higher than 0% of 1,370,886 prescribers
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 Mary Dillon, RNCS?
Quality data not reportedPrimary specialty
Adult Psychiatric/Mental Health Registered Nurse
Medicare Part D claims
28 98% vs specialty avg
Specialty distribution in Massachusetts
How Adult Psychiatric/Mental Health 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 Adult Psychiatric/Mental Health 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).
Mary Dillon, RNCS appears in the CMS NPPES registry as an Adult Psychiatric/Mental Health Registered Nurse provider holding RNCS credentials at 605 LINCOLN ST, Worcester, MA, 01605, with a listed phone of (401) 273-7100. NPI 1265783336 was issued on 09/28/2012.
Medicare Part D records for calendar year 2023 show 28 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $22K in drug spend, split 43% brand-name and 57% generic by claim count.
Adult Psychiatric/Mental Health Registered Nurse is a narrow specialty nationwide, with 4,589 enrolled providers across 52 states and an average of 1,143 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 | 1265783336 |
|---|---|
| Specialty | Adult Psychiatric/Mental Health Registered Nurse |
| Credentials | RNCS |
| Gender | Female |
| NPI Issued | 09/28/2012 |
Hospital and facility affiliations
Facilities where Mary Dillon, RNCS 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.
Achieve Tms Centers East PC
Northampton, 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).
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 Mary Dillon, RNCS. Source: openpaymentsdata.cms.gov.
Total received
$45
Largest payer
Janssen Pharmaceuticals, 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.
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 Mary Dillon, RNCS. To verify Mary Dillon, RNCS'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.
Brand vs generic prescribing mix · Above average
Mary Dillon, RNCS - brand share 43.0%
Adult Psychiatric/Mental Health Registered Nurse average
43% brand-name claims vs 57% generic, on 28 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.
28
Total Claims
$22K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 52
- Total Day Supply
- 1,560
- Brand vs Generic
- 43% brand / 57% generic
- Brand Drug Cost
- $21K
- Generic Drug Cost
- $269
Patient Demographics
- Average Patient Age
- 70.6 years
- Avg HCC Risk Score
- 1.14
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Vraylar Cariprazine Hcl | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Adult Psychiatric/Mental Health Registered Nurse in MA →
All providers in Massachusetts →
Compare specialties →
Adult Psychiatric/Mental Health Registered Nurse Overview
How Mary Dillon, RNCS fits within the Adult Psychiatric/Mental Health Registered Nurse landscape nationally.
4,589
Adult Psychiatric/Mental Health Registered Nurse Providers in US
52
States with Adult Psychiatric/Mental Health Registered Nurse
1,143
Avg Claims per Provider
Mary Dillon, RNCS's 28 claims are below the specialty average of 1,143.
Nearby Adult Psychiatric/Mental Health Registered Nurse Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Dillon.
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 Adult Psychiatric/Mental Health 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 Mary Dillon, RNCS's specialty? ▼
Mary Dillon, RNCS specializes in Adult Psychiatric/Mental Health Registered Nurse and practices in Worcester, Massachusetts. Credentials: RNCS.
How much does Mary Dillon, RNCS prescribe under Medicare Part D? ▼
In 2023, Mary Dillon, RNCS wrote 28 Medicare Part D claims totaling $22K in drug costs for N/A beneficiaries.
Where is Mary Dillon, RNCS located? ▼
Mary Dillon, RNCS is located at 605 LINCOLN ST, Worcester, MA, 01605. Phone: (401) 273-7100.
What is Mary Dillon, RNCS's NPI number? ▼
Mary Dillon, RNCS's National Provider Identifier (NPI) is 1265783336, issued on 09/28/2012.
Does Mary Dillon, RNCS prescribe more brand-name or generic drugs? ▼
Mary Dillon, RNCS's prescribing is 43% brand-name and 57% generic drugs by claim count, with $21K in brand drug costs.
How many Adult Psychiatric/Mental Health Registered Nurse providers are there in the US? ▼
There are 4,589 Adult Psychiatric/Mental Health Registered Nurse providers across 52 states in the US. The average Adult Psychiatric/Mental Health Registered Nurse provider writes 1,143 Medicare Part D claims per year.
What drugs does Mary Dillon, RNCS prescribe most often? ▼
Based on 2023 Medicare Part D data, Mary Dillon, RNCS's most frequently prescribed drugs include Vraylar. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mary Dillon, RNCS accept Medicare? ▼
Mary Dillon, RNCS appears in CMS Medicare data with 28 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mary Dillon, RNCS's credentials? ▼
Mary Dillon, RNCS's NPI is 1265783336 with credentials RNCS. 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.
- 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.