John Weidner Knarr, M.D.
Internal Medicine Physician · Salem, VA
John Weidner Knarr, M.D. is an internal medicine physician with a practice address in Salem, Virginia, and NPI 1003889429, issued on Feb 8, 2006. Check the license (Virginia 0101025249, as entered in NPPES) on the Virginia Department of Health Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Weidner Knarr
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101025249 VA
Self-reported in NPPES; status is on the state search - Practice location
- 2155 Apperson Dr, Salem, VA 24153
- Phone
- (540) 444-2010
- Enumerated
- Feb 8, 2006
- Record last updated
- Sep 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (540) 444-2019
- Medicaid ID
- 6063608 VA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,599 in Virginia → Look up another NPI →
Also registered at 2155 Apperson Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Weidner Knarr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101025249Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Weidner Knarr among 3,599 internal medicine physician records in Virginia
John Weidner Knarr, M.D. is one of 3,599 internal medicine physician records with a practice address in Virginia. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 55% newer
- In a Medicare fileNo · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2020 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
67 internal medicine physician records list a practice address in Salem
They are 67 of the 1,678 NPPES records with a practice address in Salem, and 3,599 internal medicine physician records in Virginia. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,599 in Virginia → Every provider in Salem → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Brian Bolinger, M.D.Salem, VA 241531669470662
- John Gaylord, M.D.Salem, VA 241531619975596
- Gary Glontz, MDSalem, VA 241531669451258
- Lucian Grove, M.D.Salem, VA 241531538136932
- Roy Habib, MDSalem, VA 241531588643100
- Syed Haider, MDSalem, VA 241531699754671
- Athena Howard, MDSalem, VA 241531598743288
- Chetna Jha, M.D.Salem, VA 241531316926009
Common questions
What is John Weidner Knarr, M.D.'s NPI number?
John Weidner Knarr, M.D.'s National Provider Identifier (NPI) is 1003889429, issued on Feb 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Weidner Knarr, M.D. located?
The NPPES record lists a practice address at 2155 Apperson Dr, Salem, VA, 24153. Phone: (540) 444-2010. Providers update this record themselves, so call before visiting.
How can I verify John Weidner Knarr, M.D.'s license?
NPPES lists Virginia license number 0101025249, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.