WEI-CHIEN MICHAEL LIN (MD) – Gynecologic Oncology Physician, NPI 1437260775
Gynecologic Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
181 GYNECOLOGICAL ONCOLOGY in CA
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Provider Addresses for WEI-CHIEN MICHAEL LIN (MD)
4835, Van Nuys Boulevard, Sherman Oaks, Los Angeles, Los Angeles County, California, 91403, United States
SUITE 208
SHERMAN OAKS, CA 914032109
Phone: (818) 905-1901
Fax: (818) 905-1930
Type: Location
23823 Valencia Blvd Ste 250
Santa Clarita, CA 913559512
Phone: (661) 799-1999
Fax: (626) 218-1883
Type: Location
PO BOX 512185
LOS ANGELES, CA 900510185
Phone:
Type: Mailing
South Mayflower Avenue, Monrovia, Los Angeles County, California, 91016, United States
MONROVIA, CA 910164066
Phone: (626) 775-3514
Fax: (626) 408-3911
Type: Mailing
15031 RINALDI ST STE 150
MISSION HILLS, CA 913451207
Phone: (818) 660-4700
Fax: (818) 496-9575
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $40.
Total Amount is formed as General ($40) + Research ($0) + Ownership ($0) = $40.
Last reported payment date: 2024-03-16 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($40).
Total Amount
$40
General + Research + Ownership
Payments
1
Total payment records
General Amount
$40
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, 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: 2005-05-25
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 |
|---|---|---|---|---|
| I20050525001172 | I | Gynecological Oncology | 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 | 360 | 250 | $0 |
| 99442 | Telephone medical discussion with physician, 11-20 minutes | 134 | 94 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 51 | 51 | $0 |
| 99441 | Telephone medical discussion with physician, 5-10 minutes | 36 | 34 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 16 | 15 | $0 |
Insurance plans in this area (ZIP 91403)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Nurse Practitioner | CA | |
| Cardiovascular Disease (Cardiology) | CA | |
| Hematology/Oncology, Internal Medicine | CA | |
| - | CA | |
| Nurse Practitioner | CA | |
| Certified Registered Nurse Anesthetist (Crna) | CA | |
| Endocrinology, Internal Medicine | CA | |
| General Surgery | CA | |
| Certified Registered Nurse Anesthetist (Crna) | PA |
Reviews
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