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Charles Machen, M.D.
NPI 1407837123 · Pediatrics Physician · Knoxville, TN
Charles Machen, M.D. is a Pediatrics Physician provider in Knoxville, TN (NPI 1407837123).
Provider details
- NPI number
- 1407837123
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD0000027281 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 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
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
224 S Peters Rd
Ste. 105
Knoxville, TN 37923-5207
Phone: (865) 470-8844
Fax: (865) 539-0956
Street-level locationGet directions
Mailing address
224 S Peters Rd
Knoxville, TN 37923-5207
Registry dates
- Enumerated
- 2005-11-09
- Last updated
- 2016-01-19
Frequently asked questions
- What is Charles Machen's NPI number?
- Charles Machen's National Provider Identifier (NPI) is 1407837123, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Machen's specialty?
- Charles Machen is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Machen located?
- Charles Machen's practice location on file with NPPES is 224 S Peters Rd, Knoxville, TN 37923-5207.
- What is Charles Machen's phone number?
- The practice phone number listed in the NPPES registry for Charles Machen is (865) 470-8844.
- Is Charles Machen's NPI active?
- Yes — Charles Machen's NPI (1407837123) is active in the NPPES registry as of the last update on 2016-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.