Justin R. Knapp, M.D.
Psychiatry Physician · Berlin, VT
Justin R. Knapp, M.D. is a psychiatry physician with a practice address in Berlin, Vermont, and NPI 1336242528, issued on Sep 6, 2006. Check the license (Vermont 042.0012862, as entered in NPPES) on the Vermont Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Justin R. Knapp
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 042.0012862 VT
51706-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 130 Fisher RD, Berlin, VT 05602
- Phone
- (802) 371-4316
- Enumerated
- Sep 6, 2006
- Record last updated
- May 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (802) 371-4579
- Medicaid ID
- 1023012 VT
- Medicare enrollment
- Enrolled (PECOS I20140701002324); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 203 in Vermont → Look up another NPI →
Also registered at 130 Fisher RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kenneth Adler, MDPsychiatry Physician1417976887
- Aimee Ahari, PA-CPhysician Assistant1639448418
- Maria Aveni, M.D.Anesthesiology Physician1205858495
- Martin Bak, MDInternal Medicine Physician1629093554
- Kay BarrettClinical Psychologist1285759530
- Christian Bean, M.D.Orthopaedic Surgery Physician1831155324
Verify Justin R. Knapp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVermont Board of Medical Practice
Search for license 042.0012862Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% more Medicare Part D claims than the average psychiatry physician in 2024
1,793 Medicare Part D claims for 130 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Olanzapine155 claims
- Clozapine142 claims
- Quetiapine Fumarate108 claims
- Clonazepam92 claims
- Aripiprazole76 claims
- Sertraline Hcl69 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.
Bills Medicare through 2 group practices
- Central Vermont Medical Center IncBarre, VT
- University OF Vermont Medical Center IncBurlington, VT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin R. Knapp among 203 psychiatry physician records in Vermont
Justin R. Knapp, M.D. is one of 203 psychiatry physician records with a practice address in Vermont. 62% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 50% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2017 · median 2005 among the 97 with a school on file
- Record last updated2014 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Vermont practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 psychiatry physician records list a practice address in Berlin
They are 15 of the 340 NPPES records with a practice address in Berlin, and 203 psychiatry physician records in Vermont.
All 203 in Vermont → Every provider in Berlin → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kenneth Adler, MDBerlin, VT 056021417976887
- Harlow Ballard, MDMontpelier, VT 056021154416774
- Margaret Bolton, M.D.Montpelier, VT 056021063438000
- Paul Cameron, MDBerlin, VT 056021760403513
- Stuart Graves, MDMontpelier, VT 056021821005786
- Alicia Groft, M.D.Berlin, VT 056021598874570
- Ryosuke Kawatsuji, M.D.Berlin, VT 056021134215940
- Andrew Stoll, MDMontpelier, VT 056021912086208
Common questions
What is Justin R. Knapp, M.D.'s NPI number?
Justin R. Knapp, M.D.'s National Provider Identifier (NPI) is 1336242528, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Justin R. Knapp, M.D. located?
The NPPES record lists a practice address at 130 Fisher RD, Berlin, VT, 05602. Phone: (802) 371-4316. Providers update this record themselves, so call before visiting.
How can I verify Justin R. Knapp, M.D.'s license?
NPPES lists Vermont license number 042.0012862, as entered by the provider. Search the Vermont Board of Medical Practice at https://www.healthvermont.gov/systems/board-medical-practice. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Justin R. Knapp, M.D. prescribe under Medicare Part D?
In 2024, Justin R. Knapp, M.D. had 1,793 Medicare Part D claims for 130 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.