DR. LARRY C CHAN (D.O.) – Internal Medicine Physician, NPI 1215259221
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,010 CARDIOVASCULAR DISEASE (CARDIOLOGY) in CA
Provider Addresses for DR. LARRY C CHAN (D.O.)
685 N 13TH AVE STE 9
UPLAND, CA 917864963
Phone: (909) 981-8383
Fax: (909) 920-3054
Type: Mailing
685 N 13TH AVE STE 2
UPLAND, CA 917864963
Phone: (909) 500-8683
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 188 Open Payments records for all available years, with a total value of $10,193.
Total Amount is formed as General ($10,193) + Research ($0) + Ownership ($0) = $10,193.
Last reported payment date: 2024-12-26 • Largest payer in this snapshot: Shockwave Medical, Inc ($3,959).
Total Amount
$10,193
General + Research + Ownership
Payments
188
Total payment records
General Amount
$10,193
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 |
|---|---|
| Shockwave Medical, Inc | $3,959 |
| Boston Scientific Corporation | $1,316 |
| ShockWave Medical, Inc | $1,104 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $834 |
| Abbott Laboratories | $586 |
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: 2014-11-18
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 |
|---|---|---|---|---|
| I20141118000023 | I | Cardiovascular Disease (Cardiology) | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 664 | 331 | $0 |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 559 | 531 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 458 | 175 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 185 | 158 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 159 | 145 | $0 |
Insurance plans in this area (ZIP 91786)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | CA | 78452 | Nuclear medicine study of vessels of heart using drugs or exercise multiple studies | 32 | 32 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology) | CA | |
| Cardiovascular Disease (Cardiology), Internal Medicine | CA |
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