YI GUAN – Hospitalist Physician, NPI 1366634156
Hospitalist Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
3,302 HOSPITALIST in CA
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Provider Addresses for YI GUAN
Loma Linda University Medical Center, 11234, Anderson Street, Loma Linda, San Bernardino County, California, 92354, United States
LLUMC, HOUSE STAFF OFFICE CP 21005
LOMA LINDA, CA 923542804
Phone:
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $148.
Total Amount is formed as General ($148) + Research ($0) + Ownership ($0) = $148.
Last reported payment date: 2023-08-12 • Largest payer in this snapshot: GENZYME CORPORATION ($148).
Total Amount
$148
General + Research + Ownership
Payments
1
Total payment records
General Amount
$148
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-08-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GENZYME CORPORATION | $148 |
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: 2008-12-08
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 |
|---|---|---|---|---|
| I20081208000634 | I | Hospitalist | CA | 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 | 33 | 11 | $0 |
Insurance plans in this area (ZIP 92354)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| U R O L O G Y | OH | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Internal Medicine | CA | |
| Internal Medicine, Gastroenterology | CA | |
| Physician Assistant | CA | |
| Emergency Medicine | NC | |
| O P H T H A L M O L O G Y | CA | |
| Anesthesiology, Pain Management | NH | |
| Family Practice, Sports Medicine | CA |
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