NPPES file of Aug 9, 2026

Mary Jane Walker, FNP

Family Nurse Practitioner · Maynardville, TN

Mary Jane Walker, FNP is a family nurse practitioner with a practice address in Maynardville, Tennessee, and NPI 1144353186, issued on Mar 13, 2007. Check the license (Tennessee APN20851, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144353186
Name
Mary Jane Walker
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
APN20851 TN
RN155059 TN
Self-reported in NPPES; status is on the state search
Practice location
4330 Maynardville Hwy, Maynardville, TN 37807
Phone
(865) 992-3849
Enumerated
Mar 13, 2007
Record last updated
Sep 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(865) 992-5166
Medicare enrollment
Enrolled (PECOS I20160302001373); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4330 Maynardville Hwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Misty Anderson, RN, APNPsychiatric/Mental Health Nurse Practitioner1750550026
  2. Danielle Barnes, DDSDentist1831551787
  3. Rhonda Bates, LPNLicensed Practical Nurse1336647486
  4. Matthew Beason, FNPFamily Nurse Practitioner1437490737
  5. Elizabeth BeintemaStudent in an Organized Health Care Education/Training Program1659188258
  6. Kristy Bolt, APRNFamily Nurse Practitioner1881117521

Verify Mary Jane Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license APN20851
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.1 times the Medicare Part D claims of the average family nurse practitioner in 2024

5,301 Medicare Part D claims for 293 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 34 claims were for opioids.

  1. Mary Walker5,301
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium317 claims
  2. Albuterol Sulfate Hfa222 claims
  3. Amlodipine Besylate217 claims
  4. Levothyroxine Sodium178 claims
  5. Lisinopril140 claims
  6. Losartan Potassium130 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $54.94

3 payments; by number, the most common kind was food and beverage; the largest payer was Sumitomo Pharma America, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Walker$54.94
  2. Specialty average$650.95

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

  1. Cherokee Health SystemsMaynardville, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Jane Walker among 9,060 family nurse practitioner records in Tennessee

Mary Jane Walker, FNP is one of 9,060 family nurse practitioner records with a practice address in Tennessee. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 10% of them.

  • NPI issued2007 · 10% of these records are older, 86% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2015 · median 2017 among the 5,523 with a school on file
  • Record last updated2020 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 family nurse practitioner records list a practice address in Maynardville

They are 15 of the 149 NPPES records with a practice address in Maynardville, and 9,060 family nurse practitioner records in Tennessee.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Matthew Beason, FNPMaynardville, TN 378071437490737
  2. Kristy Bolt, APRNMaynardville, TN 378071881117521
  3. Kayla Brummitte Newcomb, FNP-C, BSN, RNMaynardville, TN 378071720374697
  4. Amelia Case, FNP-BCMaynardville, TN 378071942507603
  5. Chantia Fears-Perez, FNPMaynardville, TN 378071114685922
  6. Emily Harless, FNPMaynardville, TN 378071154658409
  7. Brandy Hopson, FNP-CMaynardville, TN 378071891161345
  8. Patricia Lewis, MSNMaynardville, TN 378071518297589

Common questions

What is Mary Jane Walker, FNP's NPI number?

Mary Jane Walker, FNP's National Provider Identifier (NPI) is 1144353186, issued on Mar 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mary Jane Walker, FNP located?

The NPPES record lists a practice address at 4330 Maynardville Hwy, Maynardville, TN, 37807. Phone: (865) 992-3849. Providers update this record themselves, so call before visiting.

How can I verify Mary Jane Walker, FNP's license?

NPPES lists Tennessee license number APN20851, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Jane Walker, FNP prescribe under Medicare Part D?

In 2024, Mary Jane Walker, FNP had 5,301 Medicare Part D claims for 293 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

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.