LEEYEN HSU – Pulmonary Disease Physician, NPI 1235541962
Pulmonary Disease Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
1,780 PULMONARY DISEASE in CA
Provider Addresses for LEEYEN HSU
200 W ARBOR DR # 8425
SAN DIEGO, CA 921031911
Phone: (619) 543-6268
Fax: (619) 543-6529
Type: Location
200 W Arbor Dr # 8425
San Diego, CA 921031911
Phone: (619) 543-6268
Fax: (619) 543-6529
Type: Location
4955 VAN NUYS BLVD STE 502
SHERMAN OAKS, CA 914031817
Phone: (818) 325-0200
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 44 Open Payments records for all available years, with a total value of $1,291.
Total Amount is formed as General ($1,291) + Research ($0) + Ownership ($0) = $1,291.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: Pulmonx Corporation ($176).
Total Amount
$1,291
General + Research + Ownership
Payments
44
Total payment records
General Amount
$1,291
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2020-08-24
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 |
|---|---|---|---|---|
| I20200824001176 | I | Pulmonary 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 | 2,225 | 457 | $0 |
| 99291 | Critical care, first 30-74 minutes | 710 | 175 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 389 | 348 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 46 | 39 | $0 |
| 36556 | Insertion of non-tunneled central venous tube for infusion (5 years or older) | 17 | 15 | $0 |
Insurance plans in this area (ZIP 92103)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | CA | |
| Pulmonary Disease, Critical Care (Intensivists) | CA | |
| - | TX | |
| Pulmonary Disease, Critical Care (Intensivists) | CA | |
| Nurse Practitioner | CA | |
| Pulmonary Disease, Critical Care (Intensivists), Internal Medicine, Sleep Medicine | CA | |
| Physician Assistant | CA | |
| Nurse Practitioner | CA | |
| Pulmonary Disease, Sleep Medicine | CA | |
| Nurse Practitioner | CA |
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