Justine S. Ellerman, CRNP
Psychiatric/Mental Health Nurse Practitioner · Saint Leonard, MD
Justine S. Ellerman, CRNP is a psychiatric/mental health nurse practitioner with a practice address in Saint Leonard, Maryland, and NPI 1043505324, issued on Jun 14, 2011. Check the license (Maryland R191521, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Justine S. Ellerman
- Credential
- CRNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- R191521 MD
Self-reported in NPPES; status is on the state search - Practice location
- 400 Ball RD, Saint Leonard, MD 20685
- Phone
- (516) 754-3268
- Enumerated
- Jun 14, 2011
- Record last updated
- Jun 14, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140722000012); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,373 in Maryland → Look up another NPI →
Verify Justine S. Ellerman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R191521Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024
3,202 Medicare Part D claims for 183 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims.
Most prescribed
- Duloxetine Hcl209 claims
- Clonazepam190 claims
- Quetiapine Fumarate178 claims
- Sertraline Hcl164 claims
- Trazodone Hcl148 claims
- Fluoxetine Hcl135 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Shah And Associates LLCPrince Frederick, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justine S. Ellerman among 2,373 psychiatric/mental health nurse practitioner records in Maryland
Justine S. Ellerman, CRNP is one of 2,373 psychiatric/mental health nurse practitioner records with a practice address in Maryland. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 7% of them.
- NPI issued2011 · 7% of these records are older, 91% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1993 · median 2021 among the 1,409 with a school on file
- Record last updated2011 · 19% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 psychiatric/mental health nurse practitioner records list a practice address in Saint Leonard
They are 2 of the 11 NPPES records with a practice address in Saint Leonard, and 2,373 psychiatric/mental health nurse practitioner records in Maryland.
All 2,373 in Maryland → Every provider in Saint Leonard → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Tsion Mekonnen, PMHNP-BCSaint Leonard, MD 206851992413264
- Osaze Okoro, DNP, APRN, PMHNP-BCSolomons, MD 206881417471269
- Erika Humphreys, PMHNP-BCPrince Frederick, MD 206781801524715
- Sarah Hutchison, PMHNPPrince Frederick, MD 206781285458554
- Cynthia Nash, CRNP-PMHPrince Frederick, MD 206781699273672
- Travis Roberts, NP-CPrince Frederick, MD 206781316457534
- Mary Walter, RN/NP, PMHNP-BCPrince Frederick, MD 206781023449642
- Carrie White, CRNPPrince Frederick, MD 206781235625096
Common questions
What is Justine S. Ellerman, CRNP's NPI number?
Justine S. Ellerman, CRNP's National Provider Identifier (NPI) is 1043505324, issued on Jun 14, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Justine S. Ellerman, CRNP located?
The NPPES record lists a practice address at 400 Ball RD, Saint Leonard, MD, 20685. Phone: (516) 754-3268. Providers update this record themselves, so call before visiting.
How can I verify Justine S. Ellerman, CRNP's license?
NPPES lists Maryland license number R191521, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Justine S. Ellerman, CRNP prescribe under Medicare Part D?
In 2024, Justine S. Ellerman, CRNP had 3,202 Medicare Part D claims for 183 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.