NPI registry status
Active
2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1043505324 CRNP
Verify on CMS → Justine Ellerman, CRNP
Psychiatric/Mental Health Nurse Practitioner in Saint Leonard, Maryland.
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
3K
Medicare Part D claims · 156 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Justine Ellerman, CRNP filed 2,920 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in Saint Leonard, Maryland, prescribing 98% generic.
- 3K
- Part D claims, 2023
- 98%
- generic prescribing
- ≥88th
- pct by Part D claim volume (lower-bound band)
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.
Justine Ellerman, CRNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,920 ≥ 88th percentile 88% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Justine Ellerman, CRNP?
Quality data not reportedPrimary specialty
Psychiatric/Mental Health Nurse Practitioner
Medicare Part D claims
2,920 215% vs specialty avg
Specialty distribution in Maryland
How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Maryland 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).
Justine Ellerman, CRNP appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding CRNP credentials at 400 BALL RD, Saint Leonard, MD, 20685, with a listed phone of (516) 754-3268. NPI 1043505324 was issued on 06/14/2011.
Medicare Part D records for calendar year 2023 show 2,920 prescription claims written by this provider, covering 156 Medicare beneficiaries and totaling roughly $143K in drug spend, split 2% brand-name and 98% generic by claim count.
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 | 1043505324 |
|---|---|
| Specialty | Psychiatric/Mental Health Nurse Practitioner |
| Credentials | CRNP |
| Gender | Female |
| NPI Issued | 06/14/2011 |
Hospital and facility affiliations
Facilities where Justine Ellerman, CRNP 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.
Shah And Associates LLC
Prince Frederick, MD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Generic-heavy
Justine Ellerman, CRNP - brand share 2.0%
Psychiatric/Mental Health Nurse Practitioner average
2% brand-name claims vs 98% generic, on 2,920 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.
2,920
Total Claims
$143K
Total Drug Cost
156
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,319
- Total Day Supply
- 128,652
- Brand vs Generic
- 2% brand / 98% generic
- Brand Drug Cost
- $43K
- Generic Drug Cost
- $100K
Patient Demographics
- Average Patient Age
- 64.5 years
- Avg HCC Risk Score
- 1.36
- Gender Split
- 70% female / 30% male
- Age Distribution
- <65: 67, 65-74: 63, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Justine Ellerman, CRNP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Buspirone Hcl
Buspirone Hcl
165 claims
- Duloxetine Hcl
Duloxetine Hcl
157 claims
- Quetiapine Fumarate
Quetiapine Fumarate
155 claims
- Sertraline Hcl
Sertraline Hcl
155 claims
- Clonazepam
Clonazepam
144 claims
- Trazodone Hcl
Trazodone Hcl
134 claims
- Mirtazapine
Mirtazapine
128 claims
- Fluoxetine Hcl
Fluoxetine Hcl
109 claims
| Drug | Claims |
|---|---|
| Buspirone Hcl | 165 |
| Duloxetine Hcl | 157 |
| Quetiapine Fumarate | 155 |
| Sertraline Hcl | 155 |
| Clonazepam | 144 |
| Trazodone Hcl | 134 |
| Mirtazapine | 128 |
| Fluoxetine Hcl | 109 |
| Aripiprazole | 104 |
| Olanzapine | 99 |
* 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 MD →
All providers in Maryland →
Compare specialties →
Psychiatric/Mental Health Nurse Practitioner Overview
How Justine Ellerman, CRNP 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
Justine Ellerman, CRNP's 2,920 claims are above the specialty average of 927.
Nationwide Psychiatric/Mental Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Ellerman, both outside Maryland so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2011)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Ellerman.
One of 1,757 Psychiatric/Mental Health Nurse Practitioner providers enrolled in Maryland, 5 are shown here.
Dr. Elisabeth Abamina-Lette
PMHNP-BC
Baltimore, MD
Dr. Christina Abange
NP
Greenbelt, MD
Itoro Abatai
Baltimore, MD
Dr. Ama Abban
PMHNP
Jessup, MD
Dr. Adebola Abe-Fapohunda
PMHNP-BC
Upper Marlboro, MD
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 Maryland 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 Justine Ellerman, CRNP's specialty? ▼
Justine Ellerman, CRNP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in Saint Leonard, Maryland. Credentials: CRNP.
How much does Justine Ellerman, CRNP prescribe under Medicare Part D? ▼
In 2023, Justine Ellerman, CRNP wrote 2,920 Medicare Part D claims totaling $143K in drug costs for 156 beneficiaries.
Where is Justine Ellerman, CRNP located? ▼
Justine Ellerman, CRNP is located at 400 BALL RD, Saint Leonard, MD, 20685. Phone: (516) 754-3268.
What is Justine Ellerman, CRNP's NPI number? ▼
Justine Ellerman, CRNP's National Provider Identifier (NPI) is 1043505324, issued on 06/14/2011.
Does Justine Ellerman, CRNP prescribe more brand-name or generic drugs? ▼
Justine Ellerman, CRNP's prescribing is 2% brand-name and 98% generic drugs by claim count, with $43K in brand drug costs.
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 Justine Ellerman, CRNP prescribe most often? ▼
Based on 2023 Medicare Part D data, Justine Ellerman, CRNP's most frequently prescribed drugs include Buspirone Hcl, Duloxetine Hcl, Quetiapine Fumarate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Justine Ellerman, CRNP accept Medicare? ▼
Justine Ellerman, CRNP appears in CMS Medicare data with 2,920 Part D claims and 156 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Justine Ellerman, CRNP's credentials? ▼
Justine Ellerman, CRNP's NPI is 1043505324 with credentials CRNP. 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
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.