IndividualActive
John Knarr, M.D.
NPI 1003889429 · Internal Medicine Physician · Salem, VA
John Knarr, M.D. is a Internal Medicine Physician provider in Salem, VA (NPI 1003889429).
Provider details
- NPI number
- 1003889429
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 0101025249 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(95/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
2155 Apperson Dr
Salem, VA 24153-7235
Phone: (540) 444-2010
Fax: (540) 444-2019
Street-level locationGet directions
Mailing address
2000 Health Park Dr Fl Hp2
Brentwood, TN 37027-4525
Additional practice locations (1)
- 2460 Lee Hwy NPulaski, VA 24301-2335Phone: (540) 980-8804Fax: (540) 980-8161
Registry dates
- Enumerated
- 2006-02-08
- Last updated
- 2020-09-18
- Certified
- 2020-09-18
Frequently asked questions
- What is John Knarr's NPI number?
- John Knarr's National Provider Identifier (NPI) is 1003889429, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Knarr's specialty?
- John Knarr is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Knarr located?
- John Knarr's practice location on file with NPPES is 2155 Apperson Dr, Salem, VA 24153-7235.
- What is John Knarr's phone number?
- The practice phone number listed in the NPPES registry for John Knarr is (540) 444-2010.
- Is John Knarr's NPI active?
- Yes — John Knarr's NPI (1003889429) is active in the NPPES registry as of the last update on 2020-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.