NPPES file of Aug 9, 2026

Francis James O'Sullivan, MS, APRN,BC

Psychiatric/Mental Health Clinical Nurse Specialist · Boston, MA

Francis James O'Sullivan, MS, APRN,BC is a psychiatric/mental health clinical nurse specialist with a practice address in Boston, Massachusetts, and NPI 1386655496, issued on Aug 11, 2006. Check the license (Massachusetts RN173665PC, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386655496
Name
Francis James O'Sullivan
Credential
MS, APRN,BC
Primary taxonomy
Psychiatric/Mental Health Clinical Nurse Specialist 364SP0808X
License number
RN173665PC MA
Self-reported in NPPES; status is on the state search
Practice location
251 Causeway St, Boston, MA 02114
Phone
(617) 248-1053
Enumerated
Aug 11, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(617) 248-1121
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 251 Causeway St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cheryl Abel, MSWClinical Social Worker1487741948
  2. Deborah Anderson, NPPrimary Care Nurse Practitioner1417991464
  3. Michael Angelini, PHARM.D.Psychiatric Pharmacist1023116365
  4. Lily Awad, M.D.Addiction Medicine (Psychiatry & Neurology) Physician1275615908
  5. Benjamin Bayley, LCSWClinical Social Worker1942089404
  6. Nicole Bosse, PHARMDPharmacist1982918850

Verify Francis James O'Sullivan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN173665PC    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

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Psychiatric/Mental Health Clinical Nurse Specialist providers in Massachusetts

There are 145 psychiatric/mental health clinical nurse specialist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 145 in Massachusetts → Every provider in Boston →

Other psychiatric/mental health clinical nurse specialist records in Massachusetts

  1. Mary Ahern, PMHCNS-BCBoston, MA1619137742
  2. Donna Amaral, PMHCNS-BCTaunton, MA1043720170
  3. Jean Anscombe, RNCSGloucester, MA1790833184
  4. Frances Araujo, APRN, BCWeymouth, MA1871673459
  5. Nicole Baisden, PMHCNS-BCLynn, MA1831118074
  6. Jane Barbiasz, RNCSMedford, MA1982687232
  7. David Becker, RNBoston, MA1184269201
  8. Beverly Benedetti, APRNNorth Easton, MA1073548954
  9. Anne Marie Berry, PSYD RNCSYarmouth Port, MA1588879639
  10. Rachael Blackmar, CNP PMHNPSalem, MA1174196893

Common questions

What is Francis James O'Sullivan, MS, APRN,BC's NPI number?

Francis James O'Sullivan, MS, APRN,BC's National Provider Identifier (NPI) is 1386655496, issued on Aug 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Francis James O'Sullivan, MS, APRN,BC located?

The NPPES record lists a practice address at 251 Causeway St, Boston, MA, 02114. Phone: (617) 248-1053. Providers update this record themselves, so call before visiting.

How can I verify Francis James O'Sullivan, MS, APRN,BC's license?

NPPES lists Massachusetts license number RN173665PC, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.