DR. BARBARA M. NIES (M.D.) – Maternal & Fetal Medicine Physician, NPI 1346331170
Maternal & Fetal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,164 OBSTETRICS/GYNECOLOGY in VA
Provider Addresses for DR. BARBARA M. NIES (M.D.)
3020 Hamaker Ct
Suite 501
Fairfax, VA 220312238
Phone: (703) 698-5350
Fax: (703) 204-1074
Type: Location
3300 Gallows Rd
Falls Church, VA 220423307
Phone: (703) 776-4001
Fax: (703) 776-7113
Type: Location
44055 Riverside Pkwy Ste 104
Leesburg, VA 201765155
Phone: (703) 858-8378
Fax: (703) 858-8300
Type: Location
3020, Hamaker Court, Merrifield, Fairfax (city), Virginia, 22031, United States
SUITE 501
FAIRFAX, VA 220312238
Phone: (703) 698-5350
Fax: (703) 204-1074
Type: Location
11101, Prince Edward Court, Reston, Fairfax County, Virginia, 22124, United States
OAKTON, VA 221241034
Phone: (703) 262-0117
Type: Mailing
8081 INNOVATION PARK DR STE 301
FAIRFAX, VA 220314867
Phone: (703) 698-5350
Fax: (703) 204-1074
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: 2021-07-06
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 |
|---|---|---|---|---|
| I20210629001180 | I | Obstetrics/Gynecology | DC | TBD |
| I20210706000333 | I | Obstetrics/Gynecology | 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)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E U R O L O G Y | HI | |
| H E M A T O L O G Y | WA | |
| - | VIR | |
| - | IL | |
| Orthopedic Surgery | VA | |
| - | VA | |
| Diagnostic Radiology | VA | |
| General Surgery | CT | |
| - | VA | |
| N E U R O S U R G E R Y | VA |
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