MATTHEW C MASCIOLI DO
NPI 1225615933
Internal Medicine - Sleep Medicine in Knoxville, TN

Q: What is Matthew Mascioli's NPI number?

The NPI number for Matthew Mascioli is 1225615933. It was assigned to this individual provider in the NPPES registry on March 27, 2021.

Q: What is Matthew Mascioli's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Mascioli was last updated on April 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 27, 2021PECOS EnrolledAccepts Medicare Assignment

1267 DICK LONAS RD STE 200, KNOXVILLE, TN 37909(865) 909-0744(833) 908-2120 Get Directions Write a Review

NPPES record last updated: April 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 28, 2026, Jun 23, 2025, Jun 25, 2024 and 1 more (4 updates tracked since 2021).

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About Matthew C Mascioli Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MATTHEW C MASCIOLI DO (NPI 1225615933) is an individual sleep medicine provider in Knoxville, Tennessee, licensed in Tennessee (6295) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, maintains a secondary practice location in Indianapolis, and is a graduate of Lincoln Mem Univ, Debusk Col Of Osteopathic Med (2021).

NPPES Registry Identity

NPI1225615933

Entity TypeIndividualMale

Primary Taxonomy207RS0012X

Provider Legal NameMATTHEW C MASCIOLICredential: DO

Location Address1267 DICK LONAS RD STE 200Knoxville, TN 37909-1326

Mailing Address1275 Dick Lonas Rd Unit 101Knoxville, TN 37909-1383 · (865) 584-4747 · Fax (833) 908-0998

Phone(865) 909-0744

Fax(833) 908-2120

Sole ProprietorNo

Medical School CMSLincoln Mem Univ, Debusk Col Of Osteopathic MedGraduated 2021

Enumeration DateMarch 27, 2021

Last NPPES UpdateApril 28, 20264 updates tracked since enumeration

NPPES CertifiedApril 28, 2026

✔ NPI 1225615933 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RS0012X

License✔ Licensed in TN · 6295

Definition

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Also ListedInternal MedicineTaxonomy 207R00000X · License 02007815A (IN)

1267 DICK LONAS RD STE 200, Knoxville, TN 37909

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Secondary Practice Location 1

Location 11120 W Michigan StIndianapolis, IN 46202-5209 · Phone (317) 278-0042

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Matthew C Mascioli Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6406293935

PECOS Enrollment IDI20250930001071

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37909 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KAITLIN KING FNP-BC

Nurse Practitioner (Family)

1267 DICK LONAS RD STE 200
KNOXVILLE, TN 37909

Knox County (865) 909-0744

STEVEN JEFFREY CONGRESS PA

Physician Assistant

1267 DICK LONAS RD STE 200
KNOXVILLE, TN 37909

Knox County (865) 909-0744

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Mascioli's NPI number?

The NPI number for Matthew Mascioli is 1225615933. It was assigned to this individual provider in the NPPES registry on March 27, 2021.

Where is Matthew Mascioli located?

Matthew Mascioli practices at 1267 Dick Lonas Rd Ste 200, Knoxville, TN 37909. The listed phone number is (865) 909-0744.

What is Matthew Mascioli's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Matthew Mascioli enrolled in Medicare?

Yes. Matthew Mascioli is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Matthew Mascioli accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of North Carolina and 3 other insurers list Matthew Mascioli as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Matthew Mascioli was last updated on April 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.