DR. NEIL D WALLEN (M.D.) – Allergy Physician, NPI 1326043373
Allergy Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for DR. NEIL D WALLEN (M.D.)
Kingsport, Sullivan County, Tennessee, United States
KINGSPORT, TN 376620009
Phone: (423) 844-7000
Fax: (423) 844-7007
Type: Mailing
Spar, 126, Rodway Road, Charlton Hayes, Patchway, Bristol, South Gloucestershire, South West England, England, BS34 5PF, United Kingdom
BRISTOL, TN 376203310
Phone: (423) 844-7000
Fax: (423) 844-7007
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 159 Open Payments records for all available years, with a total value of $3,651.
Total Amount is formed as General ($3,651) + Research ($0) + Ownership ($0) = $3,651.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($533).
Total Amount
$3,651
General + Research + Ownership
Payments
159
Total payment records
General Amount
$3,651
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $533 |
| Amgen Inc. | $512 |
| GlaxoSmithKline, LLC. | $431 |
| Regeneron Healthcare Solutions, Inc. | $303 |
| CSL Behring | $301 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2008-03-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20080327000640 | I | Allergy/Immunology | TN | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 95004 | Test for allergy using allergenic extract | 1,420 | 25 | $0 |
| 95165 | Professional service for preparation and provision of 1 or more antigens | 200 | 11 | $0 |
| 95117 | Professional service for multiple injections of allergen | 164 | 15 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 129 | 94 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 30 | 30 | $0 |
Insurance plans in this area (ZIP 37662)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | TN | |
| G A S T R O E N T E R O L O G Y | TN | |
| Nurse Practitioner | TN | |
| Nurse Practitioner | TN | |
| Nurse Practitioner | TN | |
| Nurse Practitioner | TN | |
| Nurse Practitioner | TN | |
| Physician Assistant | TN | |
| Family Practice | VA | |
| - | TN |
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