MICHAEL S PATTERSON (PAC) – Physician Assistant, NPI 1639298268
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,282 PHYSICIAN ASSISTANT in WA
Provider Addresses for MICHAEL S PATTERSON (PAC)
PO BOX 960
CHEWELAH, WA 991090960
Phone: (509) 935-8211
Type: Mailing
500 W WEBSTER
CHEWELAH, WA 99109
Phone: (509) 935-8211
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: 2004-09-14
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 |
|---|---|---|---|---|
| I20040914000514 | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 175 | 166 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 40 | 40 | $0 |
| 87636 | Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b | 39 | 39 | $0 |
| 81003 | Automated urinalysis test | 35 | 34 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 99109)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | WA | |
| Nurse Practitioner | WA | |
| - | IL | |
| O P H T H A L M O L O G Y | OR | |
| O P H T H A L M O L O G Y | WA | |
| Nurse Practitioner | WA | |
| Family Practice | WA | |
| Interventional Radiology, Diagnostic Radiology | OH | |
| Physician Assistant | ID | |
| Clinical Psychologist | WA |
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