DR. TONY A KNAPP (D.C.) – Chiropractor, NPI 1942237904
Chiropractor
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
801 CHIROPRACTIC in VA
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Provider Addresses for DR. TONY A KNAPP (D.C.)
Harry Byrd Highway Service Road, Sterling, Loudoun County, Virginia, 20164, United States
STE 102
STERLING, VA 201642253
Phone: (703) 406-8686
Type: Mailing
21430 CEDAR DR STE 226
STERLING, VA 201648697
Phone: (703) 444-3870
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2008-07-10
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 |
|---|---|---|---|---|
| I20080710000567 | I | Chiropractic | VA | 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 |
|---|---|---|---|---|
| 98940 | Chiropractic manipulative treatment, 1-2 spinal regions | 277 | 31 | $0 |
Insurance plans in this area (ZIP 20164)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CHIROPRACTIC | VA | 98940 | Chiropractic manipulative treatment, 1-2 spinal regions | 104 | 15 |
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