Kerry E. O'Brien, CRNP
Psychiatric/Mental Health Nurse Practitioner · Baltimore, MD
Kerry E. O'Brien, CRNP is a psychiatric/mental health nurse practitioner with a practice address in Baltimore, Maryland, and NPI 1477017614, issued on Jan 22, 2019. Check the license (Maryland R186747, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kerry E. O'Brien
- Credential
- CRNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- R186747 MD
LC8432 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1501 Sulgrave Ave Ste 312, Baltimore, MD 21209
- Phone
- (410) 858-4020
- Enumerated
- Jan 22, 2019
- Record last updated
- Apr 30, 2024
- Medicare enrollment
- Enrolled (PECOS I20231208000110); 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 →
Also registered at 1501 Sulgrave Ave Ste 312
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph AndrewsPsychiatry Physician1982993960
- Dana GorschePsychiatric/Mental Health Nurse Practitioner1619513736
Verify Kerry E. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R186747Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
300 Medicare Part D claims for 61 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.
Most prescribed
- Sertraline Hcl56 claims
- Escitalopram Oxalate53 claims
- Bupropion Xl50 claims
- Fluoxetine Hcl21 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
- New York UniversityNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kerry E. O'Brien among 2,373 psychiatric/mental health nurse practitioner records in Maryland
Kerry E. O'Brien, 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 2019, is newer than 33% of them.
- NPI issued2019 · 33% of these records are older, 61% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2020 · median 2021 among the 1,409 with a school on file
- Record last updated2024 · 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).
429 psychiatric/mental health nurse practitioner records list a practice address in Baltimore
They are 429 of the 35,183 NPPES records with a practice address in Baltimore, and 2,373 psychiatric/mental health nurse practitioner records in Maryland.
All 2,373 in Maryland → Every provider in Baltimore → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Rashidat Akinsanya, CRNP-PMHBaltimore, MD 212091790126670
- Sara BortnerBaltimore, MD 212091033737226
- Vonetta Davis-Royster, CRNPBaltimore, MD 212091619210200
- Dana GorscheBaltimore, MD 212091619513736
- Jami Hicks-Townes, CRNP-PMHBaltimore, MD 212091477133395
- Sarah High, CRNPBaltimore, MD 212091578943304
- Moses Ikejiofor, PMHNPBaltimore, MD 212091437704103
- Mark Anthony Ison, CRNP- PMHBaltimore, MD 212091881152783
Common questions
What is Kerry E. O'Brien, CRNP's NPI number?
Kerry E. O'Brien, CRNP's National Provider Identifier (NPI) is 1477017614, issued on Jan 22, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Kerry E. O'Brien, CRNP located?
The NPPES record lists a practice address at 1501 Sulgrave Ave Ste 312, Baltimore, MD, 21209. Phone: (410) 858-4020. Providers update this record themselves, so call before visiting.
How can I verify Kerry E. O'Brien, CRNP's license?
NPPES lists Maryland license number R186747, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Kerry E. O'Brien, CRNP prescribe under Medicare Part D?
In 2024, Kerry E. O'Brien, CRNP had 300 Medicare Part D claims for 61 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.