MRS. MAMIE CHOY WILLIAMS (A.R.N.P.) – Nurse Practitioner, NPI 1386071264
Nurse Practitioner
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Profile Insights
NPPES metrics only — not quality of care.
6,268 NURSE PRACTITIONER in WA
Provider Addresses for MRS. MAMIE CHOY WILLIAMS (A.R.N.P.)
560 GAGE BLVD
SUITE 203
RICHLAND, WA 993528650
Phone: (509) 942-3627
Fax: (509) 942-2268
Type: Mailing
3950 KEENE RD
WEST RICHLAND, WA 99353
Phone: (509) 942-3130
Fax: (509) 628-8335
Type: Location
8 MEDICAL PLAZA DR STE 300
ROSEVILLE, CA 956613107
Phone: (916) 782-5106
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $209.
Total Amount is formed as General ($209) + Research ($0) + Ownership ($0) = $209.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: Boston Scientific Corporation ($150).
Total Amount
$209
General + Research + Ownership
Payments
3
Total payment records
General Amount
$209
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $150 |
| Coherus Biosciences Inc. | $33 |
| Novartis Pharmaceuticals Corporation | $26 |
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: 2023-09-08
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 |
|---|---|---|---|---|
| I20230908003530 | I | Nurse Practitioner | CA | 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 | 149 | 138 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 27 | 24 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 16 | 16 | $0 |
Insurance plans in this area (ZIP 99352)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| Internal Medicine | CA | |
| - | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| Allergy/Immunology, Rheumatology | CA | |
| Physician Assistant | CA | |
| Physician Assistant | CA |
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