MR. AARON LOUIS ISAAC (PA C) – Medical Physician Assistant, NPI 1790973923
Medical Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,282 PHYSICIAN ASSISTANT in WA
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Provider Addresses for MR. AARON LOUIS ISAAC (PA C)
Mortgage Express, 505, South 336th Street, Federal Way, King County, Washington, 98003-5402, United States
SUITE 600
FEDERAL WAY, WA 980036328
Phone: (253) 838-6180
Fax: (253) 838-6418
Type: Mailing
St. Francis Hospital, 34515, 9th Avenue South, Kitts Corner, Federal Way, King County, Washington, 98003, United States
FEDERAL WAY, WA 980036761
Phone: (253) 944-8100
Fax: (253) 944-7922
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: 2007-11-01
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 |
|---|---|---|---|---|
| I20071101000237 | I | Physician Assistant | WA | 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 |
|---|---|---|---|---|
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 84 | 84 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 83 | 82 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 32 | 32 | $0 |
| 93042 | Electrocardiogram (ecg) 1 to 3 leads with review by physician only | 27 | 27 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 24 | 24 | $0 |
Insurance plans in this area (ZIP 98003)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WA | |
| Emergency Medicine | WA | |
| Emergency Medicine | VA | |
| - | WA | |
| Emergency Medicine | MO | |
| Emergency Medicine | SC | |
| Emergency Medicine | MI | |
| Emergency Medicine | WA | |
| Emergency Medicine | NY | |
| Emergency Medicine | NM |
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