Jason P. Knowles, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner · Acton, MA
Jason P. Knowles, PMHNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Acton, Massachusetts, and NPI 1841663903, issued on Nov 10, 2015. Check the license (Massachusetts 2328831, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jason P. Knowles
- Credential
- PMHNP-BC
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 2328831 MA
Self-reported in NPPES; status is on the state search - Practice location
- 289 Great RD Ste G1, Acton, MA 01720
- Phone
- (978) 679-1200
- Enumerated
- Nov 10, 2015
- Record last updated
- Oct 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (978) 486-4037
- Medicare enrollment
- Enrolled (PECOS I20210120000275); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,169 in Massachusetts → Look up another NPI →
Also registered at 289 Great RD Ste G1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Brumaghim, PMHNPPsychiatric/Mental Health Nurse Practitioner1154098614
- Jillian CooleyMental Health Counselor1760954507
- Jillian Curt, PHARMDPharmacist1891207304
- Carol Karuci, PMHNP-BC, APRNPsychiatric/Mental Health Nurse Practitioner1861087942
- Enid Keefe, LMHCMental Health Counselor1669606752
- Jessica Lawrence, PMHNPPsychiatric/Mental Health Nurse Practitioner1235591363
Verify Jason P. Knowles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 2328831Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
41% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
532 Medicare Part D claims for 68 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Risperidone47 claims
- Sertraline Hcl43 claims
- Bupropion Xl39 claims
- Fluvoxamine Maleate28 claims
- Buspirone Hcl25 claims
- Aripiprazole24 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.
Industry payments in 2024: $176.15
7 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- New England Center For Mental Health LLCActon, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason P. Knowles among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts
Jason P. Knowles, PMHNP-BC 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 2015, is newer than 24% of them.
- NPI issued2015 · 24% of these records are older, 73% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2020 · median 2021 among the 1,309 with a school on file
- Record last updated2020 · 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).
10 psychiatric/mental health nurse practitioner records list a practice address in Acton
They are 10 of the 556 NPPES records with a practice address in Acton, and 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.
All 2,169 in Massachusetts → Every provider in Acton → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Michelle Brumaghim, PMHNPActon, MA 017201154098614
- Alexa-Rae Carpinelli, PMHNP-BCActon, MA 017201811514052
- Jeremy Cohen, PMHNP-BCActon, MA 017201538767389
- Kristie Hadley, CNPActon, MA 017201154095826
- Carol Karuci, PMHNP-BC, APRNActon, MA 017201861087942
- Jessica Lawrence, PMHNPActon, MA 017201235591363
- Sophia Lewis, PMHNP-BCActon, MA 017201285417881
- Sandra Marien, PMHNPActon, MA 017201467005058
Common questions
What is Jason P. Knowles, PMHNP-BC's NPI number?
Jason P. Knowles, PMHNP-BC's National Provider Identifier (NPI) is 1841663903, issued on Nov 10, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Jason P. Knowles, PMHNP-BC located?
The NPPES record lists a practice address at 289 Great RD Ste G1, Acton, MA, 01720. Phone: (978) 679-1200. Providers update this record themselves, so call before visiting.
How can I verify Jason P. Knowles, PMHNP-BC's license?
NPPES lists Massachusetts license number 2328831, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Jason P. Knowles, PMHNP-BC prescribe under Medicare Part D?
In 2024, Jason P. Knowles, PMHNP-BC had 532 Medicare Part D claims for 68 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.