DR. ALEXANDER THUYA CHAN (MD) – Internal Medicine Physician, NPI 1467413666
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. ALEXANDER THUYA CHAN (MD)
PO BOX 35380
LAS VEGAS, NV 891335380
Phone: (702) 579-3203
Type: Mailing
55, South Raymond Avenue, Alhambra, Los Angeles County, California, 91801, United States
200
ALHAMBRA, CA 918017100
Phone: (626) 293-1350
Fax: (626) 570-5638
Type: Location
37, West Winnie Way, Arcadia, Los Angeles County, California, 91007, United States
ARCADIA, CA 910078048
Phone: (626) 294-0028
Fax: (626) 570-5638
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 13 Open Payments records for all available years, with a total value of $1,454.
Total Amount is formed as General ($1,454) + Research ($0) + Ownership ($0) = $1,454.
Last reported payment date: 2024-11-05 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($619).
Total Amount
$1,454
General + Research + Ownership
Payments
13
Total payment records
General Amount
$1,454
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $619 |
| Lilly USA, LLC | $262 |
| AngioDynamics, Inc. | $198 |
| GlaxoSmithKline, LLC. | $125 |
| Gilead Sciences, Inc. | $125 |
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: 2004-09-14
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 |
|---|---|---|---|---|
| I20040914000890 | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 45 | 34 | $0 |
| 99441 | Telephone medical discussion with physician, 5-10 minutes | 36 | 23 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 33 | 33 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 18 | 16 | $0 |
| G0008 | Administration of influenza virus vaccine | 16 | 15 | $0 |
Insurance plans in this area (ZIP 89133)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | CA | |
| - | CA | |
| - | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| Physical Therapist In Private Practice | NV | |
| Internal Medicine | CA | |
| - | CA | |
| Internal Medicine, Geriatric Medicine | CA |
Reviews
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