MRS. MARY ELIZABETH O'BOYLE WILLIS (FNP) – Family Nurse Practitioner, NPI 1003035148
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
16,353 NURSE PRACTITIONER in CA
Provider Addresses for MRS. MARY ELIZABETH O'BOYLE WILLIS (FNP)
611 Gateway Blvd Ste 120
South San Francisco, CA 940807066
Phone: (650) 761-4056
Type: Location
PO BOX 91734
RICHMOND, VA 232911734
Phone: (804) 358-6100
Fax: (804) 342-7619
Type: Mailing
1250 E MARSHALL ST
DEPARTMENT OF PEDIATRICS
RICHMOND, VA 232985051
Phone: (804) 628-0189
Fax: (804) 828-6301
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: 2025-10-29
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 |
|---|---|---|---|---|
| I20250814003732 | I | Nurse Practitioner | CA | TBD |
| I20251029001956 | I | Nurse Practitioner | TX | 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 94080)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | NY | |
| Nurse Practitioner | FL | |
| Nurse Practitioner | GA | |
| Sleep Medicine, Sleep Medicine, Family Practice | FL |
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