DR. QI QUAN LEONG (M.D.) – Infectious Disease Physician, NPI 1457761082
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
568 INFECTIOUS DISEASE in PA
Provider Addresses for DR. QI QUAN LEONG (M.D.)
501 S 54TH ST STE 128
PHILADELPHIA, PA 191431900
Phone:
Type: Mailing
2250 HAYES ST STE 302
SAN FRANCISCO, CA 941171078
Phone: (415) 379-2900
Fax: (415) 666-3144
Type: Location
3400 DATA DR
RANCHO CORDOVA, CA 956707956
Phone:
Type: Mailing
1501 LANSDOWNE AVE STE 207
DARBY, PA 190231333
Phone: (610) 237-5817
Fax: (610) 237-5819
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 31 Open Payments records for all available years, with a total value of $1,198.
Total Amount is formed as General ($1,198) + Research ($0) + Ownership ($0) = $1,198.
Last reported payment date: 2024-08-15 • Largest payer in this snapshot: ViiV Healthcare Company ($625).
Total Amount
$1,198
General + Research + Ownership
Payments
31
Total payment records
General Amount
$1,198
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-15
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ViiV Healthcare Company | $625 |
| Gilead Sciences, Inc. | $194 |
| EMD Serono, Inc. | $127 |
| Janssen Biotech, Inc. | $100 |
| Merck Sharp & Dohme LLC | $40 |
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: 2023-04-04
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 |
|---|---|---|---|---|
| I20230404002726 | I | Infectious Disease | 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 | 244 | 86 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 75 | 71 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 36 | 35 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 23 | 20 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 12 | 11 | $0 |
Insurance plans in this area (ZIP 19143)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Hospitalist, Internal Medicine | CA | |
| Internal Medicine, Interventional Cardiology | MD | |
| Hospitalist, Internal Medicine | CA | |
| Internal Medicine | PA | |
| Hematology/Oncology, Internal Medicine | CA | |
| Internal Medicine, Cardiovascular Disease (Cardiology) | MA | |
| Hospitalist, Internal Medicine | IL | |
| Internal Medicine | CA | |
| Hospitalist, Internal Medicine, Hospice/Palliative Care | CA | |
| Internal Medicine, Interventional Cardiology, Cardiovascular Disease (Cardiology) | IL |
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