Matthew C. Mascioli, DO
Sleep Medicine (Internal Medicine) Physician · Knoxville, TN
Matthew C. Mascioli, DO is a sleep medicine (internal medicine) physician with a practice address in Knoxville, Tennessee, and NPI 1225615933, issued on Mar 27, 2021. Check the license (Tennessee 6295, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Matthew C. Mascioli
- Credential
- DO
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- License numbers
- 6295 TN
02007815A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1267 Dick Lonas RD Ste 200, Knoxville, TN 37909
- Phone
- (865) 909-0744
- Enumerated
- Mar 27, 2021
- Record last updated
- Apr 28, 2026
- Fax
- (833) 908-2120
- Medicare enrollment
- Enrolled (PECOS I20250930001071); accepts Medicare assignment
- Medical or professional school
- Lincoln Mem Univ, Debusk Col Of Osteopathic Med, 2021
- Entity
- Type 1 · individual
8 nearest sleep medicine (internal medicine) physician records → All 27 in Tennessee → Look up another NPI →
Also registered at 1267 Dick Lonas RD Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steven Congress, PAPhysician Assistant1942823059
- Kaitlin King, FNP-BCFamily Nurse Practitioner1043076029
Verify Matthew C. Mascioli in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 6295Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $177.99
1 payment: food and beverage; the largest payer was Inspire Medical Systems, Inc. The 664 providers of this specialty with any payment received $3,724.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Summit Medical Group, PLLCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew C. Mascioli among 27 sleep medicine (internal medicine) physician records in Tennessee
Matthew C. Mascioli, DO is one of 27 sleep medicine (internal medicine) physician records with a practice address in Tennessee. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 96% of them.
- NPI issued2021 · 96% of these records are older, 0% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2021 · median 1999 among the 19 with a school on file
- Record last updated2026 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Sleep Medicine (Internal Medicine) Physician providers in Tennessee
There are 27 sleep medicine (internal medicine) physician records in Tennessee.
All 27 in Tennessee → Every provider in Knoxville → Sleep Medicine (Internal Medicine) Physician nationwide →
The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes
- Prashant James, M.D.Knoxville, TN 379091609250562
- Bert Hampton, M.D.Knoxville, TN 379161932245743
- Kevin Martinolich, MDKnoxville, TN 379201659388197
- Cherridan Rambally, M.D.Oak Ridge, TN 378301619015575
- Ariel Long, D.O.Memphis, TN 381051548657281
- John McGehee, M.D.Memphis, TN 381201265470462
- James Andrews, MDMemphis, TN 381571255312336
- William Mariencheck, MDMemphis, TN 381571467432203
Common questions
What is Matthew C. Mascioli, DO's NPI number?
Matthew C. Mascioli, DO's National Provider Identifier (NPI) is 1225615933, issued on Mar 27, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Matthew C. Mascioli, DO located?
The NPPES record lists a practice address at 1267 Dick Lonas RD Ste 200, Knoxville, TN, 37909. Phone: (865) 909-0744. Providers update this record themselves, so call before visiting.
How can I verify Matthew C. Mascioli, DO's license?
NPPES lists Tennessee license number 6295, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. 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. Medicare files from data.cms.gov. 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.