DR. KUO S OOI (M.D.) – Internal Medicine Physician, NPI 1598775421
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
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Provider Addresses for DR. KUO S OOI (M.D.)
Sunset Boulevard, Rocklin, Placer County, California, 95765, United States
ROCKLIN, CA 956773093
Phone: (916) 624-0300
Fax: (916) 624-0631
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 266 Open Payments records for all available years, with a total value of $4,999.
Total Amount is formed as General ($4,999) + Research ($0) + Ownership ($0) = $4,999.
Last reported payment date: 2024-12-26 • Largest payer in this snapshot: ABBVIE INC. ($928).
Total Amount
$4,999
General + Research + Ownership
Payments
266
Total payment records
General Amount
$4,999
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $928 |
| GlaxoSmithKline, LLC. | $675 |
| PFIZER INC. | $437 |
| AstraZeneca Pharmaceuticals LP | $417 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $258 |
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 |
|---|---|---|---|---|
| I20070402000317 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 1,500 | 15 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 144 | 100 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 115 | 52 | $0 |
| 99454 | Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 103 | 17 | $0 |
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 93 | 21 | $0 |
Insurance plans in this area (ZIP 95677)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CA | 81002 | Urinalysis, manual test | 16 | 14 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | CA | |
| Nurse Practitioner | CA | |
| Physician Assistant | CA | |
| Sports Medicine, Family Practice | CA | |
| Physician Assistant | CA | |
| Physician Assistant | CA | |
| Family Practice | CA | |
| Physician Assistant | CA | |
| Physician Assistant | CA | |
| Physician Assistant | CA |
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