DR. IAN H LEIBOWITZ (M.D.) – Pediatric Gastroenterology Physician, NPI 1225004815
Pediatric Gastroenterology Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for DR. IAN H LEIBOWITZ (M.D.)
3022 Williams Dr
Suite 301
Fairfax, VA 220314600
Phone: (703) 698-8960
Fax: (703) 641-8427
Type: Location
3023 Hamaker Ct Fl 6
Fairfax, VA 220312207
Phone: (703) 876-2788
Type: Location
Rice Box, Atlanta BeltLine Eastside Trail, Atlanta, Georgia, 30308, United States
ATLANTA, GA 303744785
Phone: (202) 476-5000
Type: Mailing
Children's National Medical Center, 111, Michigan Avenue Northwest, McMillan Filter Plant & Reservoir, Washington, Washington, D.C., 20010, United States
WASHINGTON, DC 20010
Phone: (202) 476-5000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $79.
Total Amount is formed as General ($79) + Research ($0) + Ownership ($0) = $79.
Last reported payment date: 2023-12-07 • Largest payer in this snapshot: GENZYME CORPORATION ($46).
Total Amount
$79
General + Research + Ownership
Payments
5
Total payment records
General Amount
$79
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
2
Ownership records
Last Payment Date
2023-12-07
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2011-12-14
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 |
|---|---|---|---|---|
| I20070301000206 | I | Gastroenterology | DC | TBD |
| I20111214001062 | I | Gastroenterology | 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 22031)
Loading plans...
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.