DR. MARK ALLEN MCGRAIL M.D.
NPI 1063488831
Preventive Medicine - Addiction Medicine in Knoxville, TN

Q: What is Mark Mcgrail's NPI number?

The NPI number for Mark Mcgrail is 1063488831. It was assigned to this individual provider in the NPPES registry on February 23, 2006.

Q: What is Mark Mcgrail's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Addiction Medicine, with taxonomy code 2083A0300X.

Q: When was this NPI record last updated?

The NPPES record for Mark Mcgrail was last updated on May 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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 February 23, 2006PECOS EnrolledAccepts Medicare Assignment

2018 WESTERN AVE, KNOXVILLE, TN 37921(865) 544-0406(865) 544-0480 Get Directions Write a Review

NPPES record last updated: May 20, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: May 20, 2025, Apr 10, 2025, Nov 8, 2022 and 4 more (7 updates tracked since 2016).

On this page

About Dr. Mark Allen Mcgrail M.d. NPPES

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

DR. MARK ALLEN MCGRAIL M.D. (NPI 1063488831) is an individual addiction medicine provider in Knoxville, Tennessee, licensed in Tennessee (MD30708) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Clarksville, and is a graduate of Uniformed Services Uhs Fe Hebert School Of Med (1993).

NPPES Registry Identity

NPI1063488831

Entity TypeIndividualMale

Primary Taxonomy2083A0300X

Provider Legal NameDR. MARK ALLEN MCGRAILCredential: M.D.

Location Address2018 WESTERN AVEKnoxville, TN 37921-5718

Mailing Address1923 Sulphur Springs RdMorristown, TN 37813-5654 · (423) 317-9344 · Fax (423) 714-2355

Phone(865) 544-0406

Fax(865) 544-0480

Sole ProprietorNo

Medical School CMSUniformed Services Uhs Fe Hebert School Of MedGraduated 1993

Enumeration DateFebruary 23, 2006

Last NPPES UpdateMay 20, 20257 updates tracked since enumeration

NPPES CertifiedMay 20, 2025

✔ NPI 1063488831 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPreventive Medicine · Addiction MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083A0300X

License✔ Licensed in TN · MD30708

Definition

A physician engaged in the subspecialty practice of Addiction Medicine who specializes in the prevention, evaluation, diagnosis, treatment, and recovery of persons with the disease of addiction.

Also ListedFamily MedicineTaxonomy 207Q00000X · License T8718 (TX)

Also ListedFamily Medicine · Addiction MedicineTaxonomy 207QA0401X · License 0101276467 (VA), MD30708 (TN)

2018 WESTERN AVE, Knoxville, TN 37921

Open in Google Maps ↗

Secondary Practice Location 1

Location 1486 Archie CtClarksville, TN 37043-2027 · Phone (931) 801-5662

Other Identifiers 1

Medicaid3827523TN

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

Dr. Mark Allen Mcgrail M.d. 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 ID9931336476

PECOS Enrollment IDI20240828005320

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 37921 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 20

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

KIMBERLY EVANS

Licensed Practical Nurse