Doctor profile · Federal record

Dr. Jason Knowles, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Acton, MA

  • NPI 1841663903
  • Accepts Medicare
  • 6 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
289 Great RD Ste G1
Acton, MA 017204766
(978) 679-1200
fax (978) 486-4037

Credentials & registration

NPPES · NUCC
NPI registered
November 2015 — 11 yrs on file
Profile last updated
October 27, 2020
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State license (1)
Massachusetts #2328831

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1841663903. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
107
Distinct HCPCS
1
Medicare allowed
$11,728
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 107 16 $110

In context: peer comparison

Among 3 peers in Acton Psychiatric/Mental Health Nurse Practitioner, average services per provider: 166. This provider delivers 0.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$176
Transactions
7
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Otsuka America Pharmaceutical, INC. 3 $76.64
Teva Pharmaceuticals USA, INC. 1 $28.61
Lundbeck LLC 1 $26.88
Vertical Pharmaceuticals, LLC 1 $22.22
Janssen Pharmaceuticals, INC 1 $21.80

By nature of payment

Food and Beverage
$176

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
344
Patients
0
Total drug cost
$8,484
Drug Type Claims Patients Total cost
Risperidone Generic 44 0 $291
Bupropion Xl (Bupropion Hcl) Brand 42 0 $1,683
Lorazepam Generic 32 0 $494
Clonazepam Generic 26 0 $239
Divalproex Sodium ER (Divalproex Sodium) Brand 24 0 $921
Dextroamphetamine-Amphetamine (Dextroamphetamine/Amphetamine) Brand 22 0 $811
Clozapine Generic 20 0 $1,159
Fluoxetine Hcl Generic 20 0 $318
Lamotrigine Generic 20 0 $497
Sertraline Hcl Generic 20 0 $274

Frequently asked questions

Auto-generated from federal data
What is Dr. Jason Knowles's medical specialty?
Dr. Jason Knowles practices Psychiatric/Mental Health Nurse Practitioner in Acton, MA.
Where does Dr. Jason Knowles practice?
Dr. Jason Knowles practices at 289 Great RD Ste G1, Acton, MA 017204766. Office phone: 9786791200.
What is Dr. Jason Knowles's NPI?
Dr. Jason Knowles's National Provider Identifier (NPI) is 1841663903, issued by NPPES.
Does Dr. Jason Knowles accept Medicare assignment?
Yes. Dr. Jason Knowles accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason Knowles commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.