John Preston, CRNA
NPI 1578568234 · Certified Registered Nurse Anesthetist · Knoxville, TN
John Preston, CRNA is a Certified Registered Nurse Anesthetist provider in Knoxville, TN (NPI 1578568234).
Provider details
- NPI number
- 1578568234
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- License
- 0000067906 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Mailing address
Registry dates
- Enumerated
- 2005-06-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Preston's NPI number?
- John Preston's National Provider Identifier (NPI) is 1578568234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Preston's specialty?
- John Preston is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Preston located?
- John Preston's practice location on file with NPPES is 1924 Alcoa Hwy, Knoxville, TN 37920-1511.
- What is John Preston's phone number?
- The practice phone number listed in the NPPES registry for John Preston is (865) 544-9222.
- Is John Preston's NPI active?
- Yes — John Preston's NPI (1578568234) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.