Katharine M. Larsson, PHD, RN, CS
Psychiatric/Mental Health Clinical Nurse Specialist · Brookline, MA
Katharine M. Larsson, PHD, RN, CS is a psychiatric/mental health clinical nurse specialist with a practice address in Brookline, Massachusetts, and NPI 1790817732, issued on Mar 12, 2007. Check the license (Massachusetts 181401, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katharine M. Larsson
- Credential
- PHD, RN, CS
- Primary taxonomy
- Psychiatric/Mental Health Clinical Nurse Specialist 364SP0808X
- License number
- 181401 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1101 Beacon St Ste 2, Brookline, MA 02446
- Phone
- (617) 608-0061
- Enumerated
- Mar 12, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (617) 608-0061
- Medicare enrollment
- Enrolled (PECOS I20100604000472); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Verify Katharine M. Larsson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 181401Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average psychiatric/mental health clinical nurse specialist in 2024
238 Medicare Part D claims for 23 beneficiaries, against an average of 1,054 among the 390 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Gabapentin26 claims
- Methylphenidate Hcl24 claims
- Bupropion Xl22 claims
- Venlafaxine Hcl Er20 claims
- Trazodone Hcl18 claims
- Sertraline Hcl17 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.
Psychiatric/Mental Health Clinical Nurse Specialist providers in Massachusetts
There are 145 psychiatric/mental health clinical nurse specialist records in Massachusetts.
Other psychiatric/mental health clinical nurse specialist records in Massachusetts
- Mary Ahern, PMHCNS-BCBoston, MA1619137742
- Donna Amaral, PMHCNS-BCTaunton, MA1043720170
- Jean Anscombe, RNCSGloucester, MA1790833184
- Frances Araujo, APRN, BCWeymouth, MA1871673459
- Nicole Baisden, PMHCNS-BCLynn, MA1831118074
- Jane Barbiasz, RNCSMedford, MA1982687232
- David Becker, RNBoston, MA1184269201
- Beverly Benedetti, APRNNorth Easton, MA1073548954
- Anne Marie Berry, PSYD RNCSYarmouth Port, MA1588879639
- Rachael Blackmar, CNP PMHNPSalem, MA1174196893
Common questions
What is Katharine M. Larsson, PHD, RN, CS's NPI number?
Katharine M. Larsson, PHD, RN, CS's National Provider Identifier (NPI) is 1790817732, issued on Mar 12, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Katharine M. Larsson, PHD, RN, CS located?
The NPPES record lists a practice address at 1101 Beacon St Ste 2, Brookline, MA, 02446. Phone: (617) 608-0061. Providers update this record themselves, so call before visiting.
How can I verify Katharine M. Larsson, PHD, RN, CS's license?
NPPES lists Massachusetts license number 181401, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Katharine M. Larsson, PHD, RN, CS prescribe under Medicare Part D?
In 2024, Katharine M. Larsson, PHD, RN, CS had 238 Medicare Part D claims for 23 beneficiaries; the average among psychiatric/mental health clinical nurse specialist prescribers was 1,054. 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.