MRS. MADELEINE MARGARET GILLWALD (FNP) – Family Nurse Practitioner, NPI 1518384809
Family Nurse Practitioner
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Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,307 NURSE PRACTITIONER in VA
Provider Addresses for MRS. MADELEINE MARGARET GILLWALD (FNP)
8302 Old Courthouse Rd Ste C
Vienna, VA 221823873
Phone: (703) 462-8138
Fax: (703) 462-8139
Type: Location
3300 GALLOWS RD
FALLS CHURCH, VA 220423307
Phone: (703) 725-5596
Type: Location
402A E RAYMOND AVE
ALEXANDRIA, VA 223011040
Phone: (703) 725-5596
Type: Mailing
8357 Leesburg Pike
Vienna, VA 221822493
Phone: (571) 665-6400
Fax: (571) 665-6401
Type: Location
6230 Rolling Rd Ste Iandj
Springfield, VA 221522307
Phone: (571) 665-6460
Fax: (571) 665-6561
Type: Location
1488 Northpoint Village Ctr
Reston, VA 201941190
Phone: (571) 525-5850
Fax: (571) 525-5851
Type: Location
4600 Lee Hwy Ste C
Arlington, VA 222073419
Phone: (571) 492-3080
Fax: (571) 492-3081
Type: Location
24801 Pinebrook Rd Ste 110
Chantilly, VA 201524113
Phone: (703) 722-2500
Fax: (703) 327-1850
Type: Location
6201 Centreville Rd Ste 200
Centreville, VA 201212626
Phone: (703) 830-5600
Fax: (703) 830-6942
Type: Location
3300 Gallows Rd
Falls Church, VA 220423307
Phone: (703) 725-5596
Type: Location
180 Maple Ave W
Vienna, VA 221805727
Phone: (703) 938-5300
Fax: (703) 242-0726
Type: Location
4600 LANGSTON BOULEVARD
ARLINGTON, VA 22207
Phone: (571) 977-5274
Type: Mailing
4600 LANGSTON BLVD
ARLINGTON, VA 22207
Phone: (571) 492-3080
Fax: (571) 492-3081
Type: Location
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: 2021-11-17
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 |
|---|---|---|---|---|
| I20170905002966 | I | Nurse Practitioner | DC | TBD |
| I20211117001022 | I | Nurse Practitioner | 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 |
|---|---|---|---|---|
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 36 | 36 | $0 |
| 87811 | Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) | 16 | 16 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 13 | 13 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 22182)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | DC | |
| Internal Medicine, General Practice | VA | |
| Physician Assistant | MD | |
| Physician Assistant | VA | |
| Physician Assistant | VA | |
| Nurse Practitioner | VA | |
| Nurse Practitioner | VA | |
| Nurse Practitioner | VA | |
| Nurse Practitioner | VA | |
| Physician Assistant | VA |
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