NPPES file of Aug 9, 2026

Neil D. Wallen, M.D.

Allergy Physician · Bristol, TN

Neil D. Wallen, M.D. is an allergy physician with a practice address in Bristol, Tennessee, and NPI 1326043373, issued on Jun 16, 2005. Check the license (Tennessee MD0000017754, as entered in NPPES) on the Tennessee Board of Medical Examiners; 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
1326043373
Name
Neil D. Wallen
Credential
M.D.
Primary taxonomy
Allergy Physician 207KA0200X
License number
MD0000017754 TN
Self-reported in NPPES; status is on the state search
Practice location
933 Highway 126, Bristol, TN 37620
Phone
(423) 844-7000
Enumerated
Jun 16, 2005
Record last updated
Sep 24, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(423) 844-7007
Medicaid IDs
1326043373 VA
006002188 VA
1510634 TN
3032572 TN
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 933 Highway 126

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

  1. Melody Hughes, FNPFamily Nurse Practitioner1275873820
  2. Sydney Ramos, PAPhysician Assistant1649100520

Verify Neil D. Wallen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license MD0000017754
    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
Open the Tennessee license search

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66% more Medicare Part D claims than the average allergy physician in 2024

1,248 Medicare Part D claims for 218 beneficiaries, against an average of 750 among the 645 providers of this specialty who prescribed in Part D.

  1. Neil Wallen1,248
  2. Specialty average750

Most prescribed

  1. Montelukast Sodium140 claims
  2. Fluticasone Propionate102 claims
  3. Albuterol Sulfate Hfa94 claims
  4. Trelegy Ellipta81 claims
  5. Ipratropium Bromide72 claims
  6. Symbicort58 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: $1,552.55

65 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 502 providers of this specialty with any payment received $9,080.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Neil Wallen$1,552.55
  2. Specialty average$9,080.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Neil D. Wallen among 15 allergy physician records in Tennessee

Neil D. Wallen, M.D. is one of 15 allergy physician records with a practice address in Tennessee. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 67% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2009 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207KA0200X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy Physician providers in Tennessee

There are 15 allergy physician records in Tennessee.

The 8 allergy physician records with the nearest ZIP codes

  1. Marek Pienkowski, M.D., PH.D.Knoxville, TN 379191659340610
  2. Emily Campbell, M.D.Nashville, TN 372321699136515
  3. David Hagaman, MDNashville, TN 372321235221656
  4. Michael Dao, M.D.Nashville, TN 372171013983709
  5. William Ralph, MDNashville, TN 372031194830612
  6. Keegan Smith, M.D.Nashville, TN 372031134276009
  7. Martha Butterfield, MDSmyrna, TN 371671922098169
  8. Leslie Newman, M.D.Smyrna, TN 371671629072525

Common questions

What is Neil D. Wallen, M.D.'s NPI number?

Neil D. Wallen, M.D.'s National Provider Identifier (NPI) is 1326043373, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Neil D. Wallen, M.D. located?

The NPPES record lists a practice address at 933 Highway 126, Bristol, TN, 37620. Phone: (423) 844-7000. Providers update this record themselves, so call before visiting.

How can I verify Neil D. Wallen, M.D.'s license?

NPPES lists Tennessee license number MD0000017754, 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.

How much does Neil D. Wallen, M.D. prescribe under Medicare Part D?

In 2024, Neil D. Wallen, M.D. had 1,248 Medicare Part D claims for 218 beneficiaries; the average among allergy physician prescribers was 750. 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.