Dawn M. Williamson, PCNS
Psychiatric/Mental Health Nurse Practitioner · Boston, MA
Dawn M. Williamson, PCNS is a psychiatric/mental health nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1912987074, issued on Jan 17, 2006. Check the license (Massachusetts RN217173, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Dawn M. Williamson
- Credential
- PCNS
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- RN217173 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 643-2307
- Enumerated
- Jan 17, 2006
- Record last updated
- Oct 15, 2025
- Medicaid ID
- 110125732A MA
- Medicare enrollment
- Enrolled (PECOS I20060201000726); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
- Matthew AbadirAnesthesiology Physician1699120550
- Taimur AbbasiInternal Medicine Physician1841673522
- Megan Abbott, MDAnesthesiology Physician1730839333
- Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
- Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590
Verify Dawn M. Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN217173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Bmc Affiliated Physicians, Inc.Brockton, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dawn M. Williamson among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts
Dawn M. Williamson, PCNS is one of 2,169 psychiatric/mental health nurse practitioner records with a practice address in Massachusetts. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 95% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2005 · median 2021 among the 1,309 with a school on file
- Record last updated2025 · 23% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in Massachusetts
There are 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.
All 2,169 in Massachusetts → Every provider in Boston → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Adekemi AdeleyeBoston, MA 021141528549425
- Stephanie Butler, CNPBoston, MA 021141821466806
- Ann Marie Delano, NPBoston, MA 021141487737854
- Joseph Gustin, PMHNP-BCBoston, MA 021141598211286
- Ryan Keogh, PMHNP-BCBoston, MA 021141154664670
- Susan Krupnick, NPBoston, MA 021141295863769
- Ricky Lawson, APRN, RN, LMHCBoston, MA 021141922388420
- Sarah Maclaurin, PMHNPBoston, MA 021141104057918
Common questions
What is Dawn M. Williamson, PCNS's NPI number?
Dawn M. Williamson, PCNS's National Provider Identifier (NPI) is 1912987074, issued on Jan 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dawn M. Williamson, PCNS located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 643-2307. Providers update this record themselves, so call before visiting.
How can I verify Dawn M. Williamson, PCNS's license?
NPPES lists Massachusetts license number RN217173, 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. 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.