DR. TRISTAN RICHARD OSBORN (MD) – Hospitalist Physician, NPI 1386843969
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,188 HOSPITALIST in WA
Provider Addresses for DR. TRISTAN RICHARD OSBORN (MD)
PO BOX 50095
SEATTLE, WA 981455095
Phone: (206) 520-5700
Type: Mailing
12040 NE 128TH ST # MS 105
KIRKLAND, WA 980343013
Phone: (425) 899-2560
Fax: (425) 899-2079
Type: Location
University of Washington Medical Center - Northwest Main Hospital, 1550, North 115th Street, Haller Lake, Seattle, King County, Washington, 98133, United States
MS D-149B
SEATTLE, WA 981338401
Phone: (206) 368-1500
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: 2011-11-02
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 |
|---|---|---|---|---|
| I20111102000948 | I | Hospitalist | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 348 | 116 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 95 | 64 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 76 | 76 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 58 | 56 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 49 | 21 | $0 |
Insurance plans in this area (ZIP 98145)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WA | |
| - | WA | |
| - | WA | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | WA | |
| Physician Assistant | WY | |
| - | WA | |
| Nurse Practitioner | WA | |
| Physician Assistant | WV | |
| Family Practice | VT | |
| - | WA |
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