Janet Njeri Kariuki, CNP
Psychiatric/Mental Health Nurse Practitioner · Pembroke, MA
Janet Njeri Kariuki, CNP is a psychiatric/mental health nurse practitioner with a practice address in Pembroke, Massachusetts, and NPI 1003585712, issued on Sep 7, 2021. Check the license (Massachusetts RN2321573, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Janet Njeri Kariuki
- Credential
- CNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- RN2321573 MA
Self-reported in NPPES; status is on the state search - Practice location
- 199 Oak St, Pembroke, MA 02359
- Phone
- (781) 829-7000
- Enumerated
- Sep 7, 2021
- Record last updated
- Mar 18, 2026
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →
Also registered at 199 Oak St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Janet Njeri Kariuki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2321573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
288 Medicare Part D claims for 65 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Hydroxyzine Pamoate26 claims
- Trazodone Hcl22 claims
- Quetiapine Fumarate13 claims
- Omeprazole12 claims
- Gabapentin11 claims
- Olanzapine11 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.
Janet Njeri Kariuki among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts
Janet Njeri Kariuki, CNP 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 2021, is newer than 52% of them.
- NPI issued2021 · 52% of these records are older, 41% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2026 · 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).
17 psychiatric/mental health nurse practitioner records list a practice address in Pembroke
They are 17 of the 278 NPPES records with a practice address in Pembroke, and 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.
All 2,169 in Massachusetts → Every provider in Pembroke → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Brian Banks, PMHNP-BCPembroke, MA 023591780067645
- Samantha Bondaryk, PMHNP-BCPembroke, MA 023591508310608
- Lisa Costa, CNPPembroke, MA 023591790335214
- Rachael Fortunato, NPPembroke, MA 023591285279398
- Marie Guerrier, NPPembroke, MA 023591811646201
- Christine Hickey, PMHNP-BCPembroke, MA 023591679117808
- Kate Lydon, APRNPembroke, MA 023591366277188
- Gianna Nettis, PMHNP-BCPembroke, MA 023591336985688
Common questions
What is Janet Njeri Kariuki, CNP's NPI number?
Janet Njeri Kariuki, CNP's National Provider Identifier (NPI) is 1003585712, issued on Sep 7, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Janet Njeri Kariuki, CNP located?
The NPPES record lists a practice address at 199 Oak St, Pembroke, MA, 02359. Phone: (781) 829-7000. Providers update this record themselves, so call before visiting.
How can I verify Janet Njeri Kariuki, CNP's license?
NPPES lists Massachusetts license number RN2321573, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Janet Njeri Kariuki, CNP prescribe under Medicare Part D?
In 2024, Janet Njeri Kariuki, CNP had 288 Medicare Part D claims for 65 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.