NPI registry status
Active
2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1043736523 PMHNP-BC
Verify on CMS → Sheila Marcellus, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner in Braintree, 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 40,776 in Psychiatric/Mental Health Nurse Practitioner, 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
388
Medicare Part D claims · 35 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Industry payments
$368.69
9 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Sheila Marcellus, PMHNP-BC filed 388 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in Braintree, Massachusetts.
- 388
- Part D claims, 2023
- $368.69
- 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.
Sheila Marcellus, PMHNP-BC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
388 Top 43% higher than 57% 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 Sheila Marcellus, PMHNP-BC?
Quality data not reportedPrimary specialty
Psychiatric/Mental Health Nurse Practitioner
Medicare Part D claims
388 58% vs specialty avg
Specialty distribution in Massachusetts
How Psychiatric/Mental Health Nurse Practitioner 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 Psychiatric/Mental Health Nurse Practitioner. 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).
Sheila Marcellus, PMHNP-BC appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding PMHNP-BC credentials at 150 GROSSMAN DR STE 205, Braintree, MA, 02184, with a listed phone of (781) 285-5767. NPI 1043736523 was issued on 08/16/2017.
Medicare Part D records for calendar year 2023 show 388 prescription claims written by this provider, covering 35 Medicare beneficiaries and totaling roughly $10K in drug spend.
Psychiatric/Mental Health Nurse Practitioner is a mid-sized specialty nationwide, with 40,776 enrolled providers across 54 states and an average of 927 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 | 1043736523 |
|---|---|
| Specialty | Psychiatric/Mental Health Nurse Practitioner |
| Credentials | PMHNP-BC |
| Gender | Female |
| NPI Issued | 08/16/2017 |
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 Sheila Marcellus, PMHNP-BC. Source: openpaymentsdata.cms.gov.
Total received
$369
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 Sheila Marcellus, PMHNP-BC. To verify Sheila Marcellus, PMHNP-BC'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.
388
Total Claims
$10K
Total Drug Cost
35
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 592
- Total Day Supply
- 17,645
- Generic Drug Cost
- $9K
Patient Demographics
- Average Patient Age
- 69.8 years
- Avg HCC Risk Score
- 1.22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sheila Marcellus, PMHNP-BC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Buspirone Hcl
Buspirone Hcl
73 claims
- Escitalopram Oxalate
Escitalopram Oxalate
68 claims
- Bupropion Xl
Bupropion Xl
44 claims
- Methylphenidate Er 19
Methylphenidate Er
19 claims
- Sertraline Hcl 19
Sertraline Hcl
19 claims
- Clonidine Hcl 16
Clonidine Hcl
16 claims
- Mirtazapine 13
Mirtazapine
13 claims
- Clonazepam 12
Clonazepam
12 claims
| Drug | Claims |
|---|---|
| Buspirone Hcl | 73 |
| Escitalopram Oxalate | 68 |
| Bupropion Xl Bupropion Hcl | 44 |
| Methylphenidate Er Methylphenidate Hcl | 19 |
| Sertraline Hcl | 19 |
| Clonidine Hcl | 16 |
| Mirtazapine | 13 |
| Clonazepam | 12 |
| Duloxetine Hcl | 12 |
| Risperidone | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Psychiatric/Mental Health Nurse Practitioner in MA →
All providers in Massachusetts →
Compare specialties →
Psychiatric/Mental Health Nurse Practitioner Overview
How Sheila Marcellus, PMHNP-BC fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.
40,776
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
927
Avg Claims per Provider
Sheila Marcellus, PMHNP-BC's 388 claims are below the specialty average of 927.
Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Marcellus.
Dr. Gabrielle Abelard
PMHCNS, BC
Stoughton, MA
Dr. Dorcas Abimaje
PMHNP
Holyoke, MA
Dr. Sandra Abrahamian
PMHNP
Worcester, MA
Dr. Hadiza Abubakar
CNP
Worcester, MA
Dr. Daniel Ackroyd
BCPMHNP
Tewksbury, MA
Compare Psychiatric/Mental Health Nurse Practitioner 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 Psychiatric/Mental Health Nurse Practitioner 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 Sheila Marcellus, PMHNP-BC's specialty? ▼
Sheila Marcellus, PMHNP-BC specializes in Psychiatric/Mental Health Nurse Practitioner and practices in Braintree, Massachusetts. Credentials: PMHNP-BC.
How much does Sheila Marcellus, PMHNP-BC prescribe under Medicare Part D? ▼
In 2023, Sheila Marcellus, PMHNP-BC wrote 388 Medicare Part D claims totaling $10K in drug costs for 35 beneficiaries.
Where is Sheila Marcellus, PMHNP-BC located? ▼
Sheila Marcellus, PMHNP-BC is located at 150 GROSSMAN DR STE 205, Braintree, MA, 02184. Phone: (781) 285-5767.
What is Sheila Marcellus, PMHNP-BC's NPI number? ▼
Sheila Marcellus, PMHNP-BC's National Provider Identifier (NPI) is 1043736523, issued on 08/16/2017.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US? ▼
There are 40,776 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 927 Medicare Part D claims per year.
What drugs does Sheila Marcellus, PMHNP-BC prescribe most often? ▼
Based on 2023 Medicare Part D data, Sheila Marcellus, PMHNP-BC's most frequently prescribed drugs include Buspirone Hcl, Escitalopram Oxalate, Bupropion Xl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sheila Marcellus, PMHNP-BC accept Medicare? ▼
Sheila Marcellus, PMHNP-BC appears in CMS Medicare data with 388 Part D claims and 35 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sheila Marcellus, PMHNP-BC's credentials? ▼
Sheila Marcellus, PMHNP-BC's NPI is 1043736523 with credentials PMHNP-BC. 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.