DR. MARY ELLEN GALLAGHER (M.D.) – Internal Medicine Physician, NPI 1417956814
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,930 INTERNAL MEDICINE in VA
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Provider Addresses for DR. MARY ELLEN GALLAGHER (M.D.)
2501, North Glebe Road, Halls Hill, Arlington, Arlington County, Virginia, 22207, United States
SUITE 301
ARLINGTON, VA 222073558
Phone: (703) 527-6664
Fax: (703) 525-3451
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $166.
Total Amount is formed as General ($166) + Research ($0) + Ownership ($0) = $166.
Last reported payment date: 2024-11-21 • Largest payer in this snapshot: PFIZER INC. ($52).
Total Amount
$166
General + Research + Ownership
Payments
8
Total payment records
General Amount
$166
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $52 |
| AstraZeneca Pharmaceuticals LP | $32 |
| Novartis Pharmaceuticals Corporation | $27 |
| Amgen Inc. | $24 |
| GlaxoSmithKline, LLC. | $17 |
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: 2004-07-31
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 |
|---|---|---|---|---|
| I20040731000160 | I | Internal Medicine | DC | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 122 | 63 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 106 | 58 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 103 | 65 | $0 |
| 81002 | Urinalysis, manual test | 73 | 54 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 55 | 55 | $0 |
Insurance plans in this area (ZIP 22207)
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