SARAH HAMM (AGNP-C, ARNP) – Gerontology Nurse Practitioner, NPI 1265880611
Gerontology Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
6,261 NURSE PRACTITIONER in WA
Provider Addresses for SARAH HAMM (AGNP-C, ARNP)
8201 164TH AVE NE STE 200
REDMOND, WA 980527615
Phone: (425) 818-5311
Fax: (425) 434-1755
Type: Location
PO BOX 1526
MERCER ISLAND, WA 980401526
Phone: (206) 275-3588
Type: Mailing
9725 SE 36th St
Mercer Island, WA 980403841
Phone: (206) 275-3588
Type: Location
9725, Southeast 36th Street, Fortuna, Mercer Island, King County, Washington, 98040, United States
MERCER ISLAND, WA 980403841
Phone: (206) 275-3588
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: 2016-10-06
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 |
|---|---|---|---|---|
| I20161006001565 | I | Nurse Practitioner | 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 |
|---|---|---|---|---|
| 99349 | Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 773 | 193 | $0 |
| 99350 | Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes | 224 | 117 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 136 | 95 | $0 |
| 99345 | Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes | 74 | 74 | $0 |
| G0180 | Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 64 | 52 | $0 |
Insurance plans in this area (ZIP 98052)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | WA | |
| Nurse Practitioner | ID | |
| Nurse Practitioner | WA | |
| Nurse Practitioner | WA |
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