MARGARET LYNN LARSON (ARNP) – Family Nurse Practitioner, NPI 1699788539
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
6,261 NURSE PRACTITIONER in WA
Provider Addresses for MARGARET LYNN LARSON (ARNP)
202 N Division St Ste 301
Auburn, WA 980014939
Phone: (253) 876-7997
Fax: (253) 876-8015
Type: Location
64 RAINIER AVE S
RENTON, WA 980572047
Phone: (888) 405-6396
Fax: (415) 252-7176
Type: Mailing
8th Avenue Southwest, Burien, King County, Washington, 98166-2200, United States
BURIEN, WA 981662967
Phone: (206) 244-5477
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 $48.
Total Amount is formed as General ($48) + Research ($0) + Ownership ($0) = $48.
Last reported payment date: 2023-02-04 • Largest payer in this snapshot: ABBVIE INC. ($48).
Total Amount
$48
General + Research + Ownership
Payments
3
Total payment records
General Amount
$48
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $48 |
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: 2007-04-02
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 |
|---|---|---|---|---|
| I20070402000096 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 55 | 42 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 48 | 39 | $0 |
| 99454 | Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 47 | 17 | $0 |
| 99457 | Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 47 | 17 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 35 | 26 | $0 |
Insurance plans in this area (ZIP 98001)
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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 |
Reviews
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