MICHAEL S SHAMSELDIN (MD) – Family Medicine Physician, NPI 1629142922
Family Medicine Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
4,141 FAMILY PRACTICE in WA
Loading map...
Provider Addresses for MICHAEL S SHAMSELDIN (MD)
PO BOX 34472
SEATTLE, WA 981241472
Phone: (206) 592-9848
Type: Mailing
Swedish Greenlake Primary Care, 7210, Roosevelt Way Northeast, Green Lake, Seattle, King County, Washington, 98115, United States
SEATTLE, WA 981155600
Phone: (206) 320-3400
Fax: (206) 320-5773
Type: Location
7210 Roosevelt Way NE
Seattle, WA 981155600
Phone: (206) 320-3400
Fax: (206) 320-5773
Type: Location
27203 216TH AVE SE STE D
MAPLE VALLEY, WA 980383274
Phone: (425) 690-3425
Fax: (425) 690-9425
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
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: 2012-01-18
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 |
|---|---|---|---|---|
| I20120118000570 | I | Family Practice | 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 | 170 | 105 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 37 | 37 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 22 | 17 | $0 |
Insurance plans in this area (ZIP 98124)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| FAMILY MEDICINE | WA | 90670 | Pneumococcal vaccine for injection into muscle | 18 | 18 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | WA | |
| Physical Therapist In Private Practice | WA | |
| Internal Medicine, Hospitalist | WA | |
| P S Y C H I A T R Y | WA | |
| Hospice/Palliative Care, Internal Medicine | WA | |
| Internal Medicine, Hospitalist | CA | |
| Family Practice | WA | |
| Family Practice, Emergency Medicine | WA | |
| - | WA | |
| - | WA |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.