Patricia Gillan, N.P, M.S., C.S.
Adult Psychiatric/Mental Health Clinical Nurse Specialist · Mattapan, MA
Patricia Gillan, N.P, M.S., C.S. is an adult psychiatric/mental health clinical nurse specialist with a practice address in Mattapan, Massachusetts, and NPI 1457428161, issued on Nov 29, 2006. Check the license (Massachusetts 166491, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Patricia Gillan
- Credential
- N.P, M.S., C.S.
- Primary taxonomy
- Adult Psychiatric/Mental Health Clinical Nurse Specialist 364SP0809X
- License number
- 166491 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1135 Morton St, Mattapan, MA 02126
- Phone
- (617) 533-2400
- Enumerated
- Nov 29, 2006
- Record last updated
- Sep 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (617) 533-2401
- Medicaid ID
- 1892819 MA
- Entity
- Type 1 · individual
8 nearest adult psychiatric/mental health clinical nurse specialist records → All 171 in Massachusetts → Look up another NPI →
Also registered at 1135 Morton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Adams, RNLicensed Practical Nurse1851695886
- Kyle Akerman, PHARM.DPharmacist1548851462
- Maureen BassPhysical Therapist1376899401
- Carla Bouwmeester, MS, PHARMD, BCPSPharmacist1861687352
- Erin BragaPhysical Therapy Assistant1508112723
- Mary Jo BrognaAdministrator Registered Nurse1508434614
Verify Patricia Gillan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 166491Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average adult psychiatric/mental health clinical nurse specialist in 2024
903 Medicare Part D claims for 88 beneficiaries, against an average of 1,167 among the 347 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Quetiapine Fumarate121 claims
- Trazodone Hcl107 claims
- Venlafaxine Hcl Er56 claims
- Olanzapine39 claims
- Clonazepam35 claims
- Sertraline Hcl35 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.
Patricia Gillan among 171 adult psychiatric/mental health clinical nurse specialist records in Massachusetts
Patricia Gillan, N.P, M.S., C.S. is one of 171 adult psychiatric/mental health clinical nurse specialist records with a practice address in Massachusetts. 51% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 51% of these records are
- In the CMS Doctors and Clinicians fileNo · 35% of these records are
- Record last updated2021 · 85% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SP0809X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Psychiatric/Mental Health Clinical Nurse Specialist providers in Massachusetts
There are 171 adult psychiatric/mental health clinical nurse specialist records in Massachusetts.
All 171 in Massachusetts → Every provider in Mattapan → Adult Psychiatric/Mental Health Clinical Nurse Specialist nationwide →
The 8 adult psychiatric/mental health clinical nurse specialist records with the nearest ZIP codes
- Georgianna Marks, PHD, APRN, PCBoston, MA 021251396854394
- Ian Larose, PCNSEast Boston, MA 021281336175066
- Christine LucasDorchester Center, MA 021241144329889
- Marion ReedDorchester Center, MA 021241396844015
- Sally Guy, APRN, BCJamaica Plain, MA 021301073668190
- Ekaterini Poulakos, APRN,BCJamaica Plain, MA 021301447479985
- Debra Romano, APRN,BCJamaica Plain, MA 021301467472522
- Wendy Silverman, RNJamaica Plain, MA 021301457578205
Common questions
What is Patricia Gillan, N.P, M.S., C.S.'s NPI number?
Patricia Gillan, N.P, M.S., C.S.'s National Provider Identifier (NPI) is 1457428161, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patricia Gillan, N.P, M.S., C.S. located?
The NPPES record lists a practice address at 1135 Morton St, Mattapan, MA, 02126. Phone: (617) 533-2400. Providers update this record themselves, so call before visiting.
How can I verify Patricia Gillan, N.P, M.S., C.S.'s license?
NPPES lists Massachusetts license number 166491, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Patricia Gillan, N.P, M.S., C.S. prescribe under Medicare Part D?
In 2024, Patricia Gillan, N.P, M.S., C.S. had 903 Medicare Part D claims for 88 beneficiaries; the average among adult psychiatric/mental health clinical nurse specialist prescribers was 1,167. 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.