Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Justin R. Knapp, M.D.
Psychiatry Physician in Berlin, VT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336242528
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Registry record
Entity type Individual (Type 1)
Name Dr. Justin R. Knapp
Credential M.D.
Sex Male
Practice address 130 Fisher Rd, Berlin, VT, 05602
Phone (802) 371-4316
Fax (802) 371-4579
Enumeration date Sep 6, 2006
Last updated in NPPES May 27, 2014
Taxonomy & licenses
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 51706-20 (WI) Secondary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 042.0012862 (VT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1023012 | Medicaid | VT | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Justin Knapp?
The National Provider Identifier (NPI) for Justin Knapp is 1336242528, a Type 1 (individual) record in the CMS NPPES registry.
Where does Justin Knapp practice?
The practice location on file with NPPES is in Berlin, VT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → John Horan Urology Physician · Berlin, VT NPI 1932107844 Michael Cohn Urology Physician · Berlin, VT NPI 1528067063 Lynn Wilkinson Internal Medicine Physician · Berlin, VT NPI 1386644763 Sudhin Kanabar Neurology Physician · Berlin, VT NPI 1750373882 Peter Dale Internal Medicine Physician · Berlin, VT NPI 1649266966 David Ospina Hematology & Oncology Physician · Berlin, VT NPI 1689660912 John Valentine Medical Oncology Physician · Berlin, VT NPI 1477549517 Donald Lynch Urology Physician · Berlin, VT NPI 1811976855
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-27.