Clare O'Callaghan, RN.C.S., ED.D
Psychiatric/Mental Health Registered Nurse · Boston, MA
Clare O'Callaghan, RN.C.S., ED.D is a psychiatric/mental health registered nurse with a practice address in Boston, Massachusetts, and NPI 1235280389, issued on Jan 16, 2007. Check the license (Massachusetts 121276, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Clare O'Callaghan
- Credential
- RN.C.S., ED.D
- Primary taxonomy
- Psychiatric/Mental Health Registered Nurse 163WP0808X
- License numbers
- 121276 MA
2024 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1601 Washington St, Boston, MA 02118
- Phone
- (617) 425-2000
- Enumerated
- Jan 16, 2007
- Record last updated
- Sep 11, 2025
- Fax
- (617) 425-2043
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health registered nurse records → All 365 in Massachusetts → Look up another NPI →
Also registered at 1601 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daramis AbreuRegistered Nurse1699093567
- Carolina Abuelo, M.D.Internal Medicine Physician1306042528
- Amita Agarwal, DDSDentist1184084683
- Laura Allen, LICSWSocial Worker1740446996
- Doris Alleyne, SWSocial Worker1386918845
- Gulnora Aminova, PH.D.Mental Health Counselor1518412964
Verify Clare O'Callaghan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 121276Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average psychiatric/mental health registered nurse in 2024
12 Medicare Part D claims, against an average of 888 among the 242 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Clare O'Callaghan among 365 psychiatric/mental health registered nurse records in Massachusetts
Clare O'Callaghan, RN.C.S., ED.D is one of 365 psychiatric/mental health registered nurse records with a practice address in Massachusetts. 23% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 14% of them.
- NPI issued2007 · 14% of these records are older, 70% newer
- In a Medicare fileYes · 23% of these records are
- In the CMS Doctors and Clinicians fileNo · 16% of these records are
- Record last updated2025 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WP0808X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Registered Nurse providers in Massachusetts
There are 365 psychiatric/mental health registered nurse records in Massachusetts.
All 365 in Massachusetts → Every provider in Boston → Psychiatric/Mental Health Registered Nurse nationwide →
The 8 psychiatric/mental health registered nurse records with the nearest ZIP codes
- Oreoluwa Akinpelu, RNBoston, MA 021181316868540
- Ann Castle, R.N.Boston, MA 021181083644256
- Sarah McKeonRoxbury, MA 021181588445860
- Barbara NoelBoston, MA 021181437070653
- Andrea Quilty, RN/PCBoston, MA 021181295984722
- Lillian ShortleBoston, MA 021201871392001
- Leonardo Arcotta, RNBoston, MA 021151932732575
- Kathleen Puckett-Leslie, APRN,BCBoston, MA 021151053537340
Common questions
What is Clare O'Callaghan, RN.C.S., ED.D's NPI number?
Clare O'Callaghan, RN.C.S., ED.D's National Provider Identifier (NPI) is 1235280389, issued on Jan 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Clare O'Callaghan, RN.C.S., ED.D located?
The NPPES record lists a practice address at 1601 Washington St, Boston, MA, 02118. Phone: (617) 425-2000. Providers update this record themselves, so call before visiting.
How can I verify Clare O'Callaghan, RN.C.S., ED.D's license?
NPPES lists Massachusetts license number 121276, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Clare O'Callaghan, RN.C.S., ED.D prescribe under Medicare Part D?
In 2024, Clare O'Callaghan, RN.C.S., ED.D had 12 Medicare Part D claims; the average among psychiatric/mental health registered nurse prescribers was 888. 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.