MRS. KIMBERLY DEMETRIOU WALKER (PA-C) – Physician Assistant, NPI 1013266675
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,430 PHYSICIAN ASSISTANT in GA
Provider Addresses for MRS. KIMBERLY DEMETRIOU WALKER (PA-C)
1000 MEDICAL CENTER BLVD
500 BUILDING, SUITE 360
LAWRENCEVILLE, GA 300467694
Phone: (678) 312-3318
Type: Mailing
5445 DTC PKWY STE 1130
GREENWOOD VILLAGE, CO 801113038
Phone: (720) 749-5599
Fax: (720) 925-5897
Type: Mailing
11990 GRANT ST STE 400
NORTHGLENN, CO 802331136
Phone: (720) 749-5599
Fax: (720) 925-5897
Type: Location
1000 Medical Center Blvd
500 Building, Suite 360
Lawrenceville, GA 300467694
Phone: (678) 312-3318
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 20 Open Payments records for all available years, with a total value of $709.
Total Amount is formed as General ($709) + Research ($0) + Ownership ($0) = $709.
Last reported payment date: 2024-12-02 • Largest payer in this snapshot: ABBVIE INC. ($424).
Total Amount
$709
General + Research + Ownership
Payments
20
Total payment records
General Amount
$709
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-02
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2024-02-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-11-30 (920 days ago).
Enrollment records
2
Earliest due date
2023-11-30
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 |
|---|---|---|---|---|
| I20121105000045 | I | Physician Assistant | GA | 2023-11-30 |
| I20240227001470 | I | Physician Assistant | CO | TBD |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
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 |
|---|---|---|---|---|
| 99284 | Emergency department visit with moderate level of medical decision making | 14 | 14 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 14 | 14 | $0 |
Insurance plans in this area (ZIP 30046)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | CO | |
| Physician Assistant | CO | |
| Physician Assistant | MA | |
| Physician Assistant | CO | |
| Anesthesiology, Interventional Pain Management | WA | |
| Physician Assistant | CO | |
| Nurse Practitioner | CO | |
| Physician Assistant | CO | |
| Physician Assistant | CO | |
| Physician Assistant | NV |
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