VERONICA DIEFENBACH – Certified Registered Nurse Anesthetist, NPI 1295233427
Certified Registered Nurse Anesthetist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,883 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in VA
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Provider Addresses for VERONICA DIEFENBACH
PO BOX 3365
MERRIFIELD, VA 221163365
Phone:
Type: Mailing
North George Mason Drive, Buckingham, Arlington, Arlington County, Virginia, 22204, United States
ARLINGTON, VA 222053610
Phone: (703) 558-5000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $95.
Total Amount is formed as General ($95) + Research ($0) + Ownership ($0) = $95.
Last reported payment date: 2024-10-14 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($54).
Total Amount
$95
General + Research + Ownership
Payments
4
Total payment records
General Amount
$95
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-14
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $54 |
| Pacira Pharmaceuticals Incorporated | $24 |
| Heron Therapeutics, Inc. | $16 |
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: 2023-07-13
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20180329001681 | I | Certified Registered Nurse Anesthetist (Crna) | DC | TBD |
| I20230713003395 | I | Certified Registered Nurse Anesthetist (Crna) | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 22116)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | NC | |
| Certified Registered Nurse Anesthetist (Crna) | NC | |
| A N E S T H E S I O L O G Y | NC | |
| A N E S T H E S I O L O G Y | NJ | |
| Certified Registered Nurse Anesthetist (Crna) | NC | |
| Anesthesiology, Pain Management | VA | |
| Certified Registered Nurse Anesthetist (Crna) | VA | |
| A N E S T H E S I O L O G Y | NC | |
| Certified Registered Nurse Anesthetist (Crna) | NY | |
| A N E S T H E S I O L O G Y | MA |
Reviews
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